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8112019 Chemistry Question 12sci (1)
httpslidepdfcomreaderfullchemistry-question-12sci-1 138
SOLID STATE
THEORY
1) Give characteristics of solid
2) Give the classication of solid state
3) Explain crystalline solid and amorphous solid
4) What is a glass istinguish eteen crystalline solid and
amorphous aolid Give examples
$) Explain
i) ampolecular solid
ii) ydrogen onded molecular solid
iii) (onic solid
iv) ampetallic solid
v) ovalent solid
vi) oordination numer
) Write a note on
i) diamond ii) graphite iii) fullerene
+) lassify the folloing solids into dierent types
i) -lastic ii) -4 molecule iii) molecule iv) (odine molecule v)
0etra phosphorus decoxide vi) mmonium phosphate vii) rassviii) uidium ix) Graphite x) iamond xi) al xii) ilicon
) What is a unit cell Explain ravais lattice
5) Explain ith the help of diagram
8112019 Chemistry Question 12sci (1)
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i) even types of unit cell
ii) 0hree types of cuic cell
iii) 0o types of tetragonal unit cell
iv) 6our types of orthorhomic unit cell
v) 0o types of monoclinic unit cell
vi) 0riclinic unit cell
vii) -rimitive hexagonal unit cell
17) istinguish eteen the folloing
i) rystalline lattice and unit cell
ii) exagonal close pac8ing and cuic close pac8ing
iii)0etrahedral void and octahedral void
11) Give the numer of lattice points in one unit cell of crystal
structure
i) imple cuic ii) 6ace centered cuic iii) ody centered cuic
iv) 6ace centered tetragonal
12)Explain hy
i) (onic solids are hard and rittle
ii) olid ice is lighter than ater
iii) alculate the percentage e9ciency of pac8ing in case of
folloing crystal
a) imple cuic ) ody centered cuic c) 6ace centered cuic
ith all atoms touching one another
13) Explain ith the help of neat diagram and and
type of three dimensional pac8ing
8112019 Chemistry Question 12sci (1)
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14) Explain the pac8ing and voids in ionic solids
1$) Write note on radius ratio rule for ionic compounds
1) Explain ho to deduce coordination numer of cations
1+) What are point defects
1) Explain interstitial defect and impurity defect
15) Explain the origin of electrical properties in solids
27) What are semiconductors escrie the to main types of
semiconductors
21) Explain the origin of magnetic properties in solids22) Explain
() iamagnetism ii) -aramagnetism iii) ferromagnetism
23) lassify the folloing semiconductors into n or p type
i) doped ith i
ii) s doped ith i
iii) - doped ith i
iv) Ge doped ith (n
24) Explain and theory
2$) istinguish eteen conductorslt semiconductors and
insulators
2) Explain the termsi) chott8y defect iii) 6ren8el defect
PROBLEMS
8112019 Chemistry Question 12sci (1)
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() ioium is found to crystalli=es ith cc structure and found to
have density of $$ggtcm3 etermine the atomic radius of
nioium if its atomic mass is 532) opper crystalli=es into 6 structure and the unit cell has
length of edge 31 17 cm alculate the density of copper if
the molar mass of u is 3$ggtmol
3) ilver crystalli=es in 6 structure ith edge length of unit celllt
47+ 17 cm and if density of metallic silver is17$ggtcm3
alculate the molecular mass of silver
4) etermine the density of cesium chloride hich crystalli=es in type of structure ith the edge length 4121pm 0he atomic
masses of cesium and chloride are 133 and 3$$ respectively
$) nit cell of iron crystal has edge length of 2pm and density
of +ggtcm3etermine the type of crystal lattice 6eA$)
) n atom crystalli=es in 6 crystal lattice and a density of
17ggtcm3 ith unit cell edge length of 177pm alculate numer of
atoms present in 1g of crystal
+) n element and constitute type crystalline structure
Element occupies ody center position and is at the corners of
cue What is the formula of the compound What are the
coordination numers of and
) toms and form 6 crystalline structure tom is
present at the corners of the cue and atom is at the faces of
the cue What is the formula of the compound
8112019 Chemistry Question 12sci (1)
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SOLUTION AND COLLIGATIVE PROPERTY
THEORY
1) ene the terms solutionlt solutelt solvent and concentration
2) What are the dierent types of solution
3) Explain dierent ays in hich concentration of a solution can
e expressed
4)ene i) percentage y eightlt ii) mole fractionlt iii) ampolalitylt iv)
ampolarity
$)ene the term colligative property Give examples
) tate and explain enryBs la
+) Explain solid solution
) What is a vapour pressure of liCuid
5) Explain the eect of temperature on the vapour pressure of
liCuid
17) What are the factors hich aects vapour pressure
11) What is loering of vapour pressure of a solution
12) What is relative loering of vapour pressure
8112019 Chemistry Question 12sci (1)
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13) tate aoultBs la and otain expression for loering of
vapour pressure hen nonvolatile solute is dissolved
14) erive the relationship eteen relative loering of vapour
pressure and molar mass of solute1$) What is oiling point of liCuid
1) What is elevation of oiling point
1+) What is molal elevation constant oes it depend on the
nature of the solute
1) erive the relation eteen elevation of oiling point and
molar mass of the solute15) ene free=ing point of liCuid
27) What causes depression in free=ing point
21) ene molal depression constant
22) o molar mass of a nonvolatile solute is related to the
depression in free=ing point erive an eCuation
23) What is osmosis
24) ene semipermeale memrane and osmotic pressure
2$) ene the terms i) (sotonic solution ii) ypertonic solution
iii) ypotonic solution
2) tate i) vant ooyles la ii) vant oharles la
2+) erive vant o eCuation for osmotic pressure of a solution
2) o molar mass of a solute is determined from osmotic
pressure measurements
25) Explain anormal osmotic pressure
37) tate vant ovogadroBs la
8112019 Chemistry Question 12sci (1)
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31) Explain
i) normal molecular masses
ii) vant o factor
32) erive the eCuations
i) A
ii) A
PROBLEMS
1) 342g of glucose is dissolved in 477g of ater alculate
percentage y mass of glucose solution
2) solution is prepared y dissolving certain amount of solute in
$77g of ater 0he percentage y mass of a solute in solution is
23 alculate mass of solute
3)4cm3 of methyl alcohol is dissolved in 2$2g of ater
alculatelt i) percentage y mass of methyl alcohol ii) ampole
fraction of methyl alcohol and ater Given density of methyl
alcohol A 7+5$2ggtcm3 and A12lt A1 and DA1)
4) 12cm3 of en=ene is dissolved in 1cm3 of xylene alculate
y volume of en=ene
$) alculate mole fraction of l in solution of l containing
24 of l y massA1lt lA3$$)
) alculate mole fraction of solute in its 2 molal aCueous
solution
8112019 Chemistry Question 12sci (1)
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+) alculate the mole fractionlt molality and molarity of D3 in a
solution containing 122 D3 Given density of
D3A173ggtcm3lt A1lt A14lt DA1
) ulphuric acid is 5$ y mass alculate mole fraction andmolarity of 2D4 of density 151ggtcm3
5) Cueous solution of aD is mar8ed 17gt) 0he density of
the solution is 17+7ggtcm3
alculatelt
i) molarity ii) molality and iii) mole fraction of aD and ater
aA23lt A1 and DA1
17) attery acid is 422amp aCueous 2D4 solutionlt and has density
of 121ggtcm3 What is the molality of 2D4 A1lt A32lt DA1
11) 0he vapour pressure of 21 solution of a nonelectrolyte in
ater at 177 is +$$mm g alculate the molar mass of the
solute
12) 0he vapour pressure of ater at 27 is 1+mm g alculate
the vapour pressure of a solution containing 2g of
urea2D2) in $7g of ater A14lt A12lt A1
13) (n an experimentlt 174g of mannitol ere dissolved in 177g
of ater 0he vapour pressure of ater as loered y 7375mm
g from 1+$3$mm g alculate the molar mass of mannitol
14) solution containing 7$12g of naphthalene molar mass A
121+ggtmol) in $7g of l4 gives a oiling point elevation of
7472F While a solution of 721g of un8non solute in the
same mass of the solvent gives a oiling point elevation of 74+F
6ind the molar mass of the un8non solute
F for l4A $73F 8g mol1 of solvent)
8112019 Chemistry Question 12sci (1)
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1$) alculate the mass in grams of an impurity of molar mass
177gmol1 hich ould e reCuired to raise the oiling point of
$7g of chloroform y737F
F for chloroformA 33F 8g mol
1
)1) oiling point of a solvent is 72 When 7415g of the solute
of molar mass 2$24g mol1 as dissolved in +$g of the solventlt
the oiling point of the solution as found to e 72$ 6ind
the molal elevation constant
1+) 7ml of glacial acetic acid ith density 17gm 1 is
dissolved in 18g ater and the solution fro=e at 7727$
alculate vant o factor and F f for ater is1F 8g mol1
1) enryBs la constant for soluility of methane in en=ene is
42+ 17$mm g at constant temperature alculate the
soluility of methane at +7mm g pressure at same
temperature
CHEMICAL THERMODYNAMICS AND ENERGIES
Theory
1)ene the terms systemlt surroundinglt open systemlt close
systemlt isolated systemlt exothermic reactionslt endothermic
reactionslt extensive properties and intensive properties
2) Explain the term state function Give to examples of state
functions and to example of path function
3) Explain thermodynamics eCuilirium
4) istinguish eteen isothermal and adiaatic process
$) What is a reversile process What are its features
) ho that pressure times volume is eCual to or8
8112019 Chemistry Question 12sci (1)
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+) erive the expression for or8 hen a gas expands against
constant external pressure
) lassify the folloing reactions according to or8 done y the
systemlt on the system and no or8 done if pressure is constanta) 2g) H l2g) 2lg)
) 3D2g) 2D3g)
c) 2D2g) D2g)H 2D3g)
d) ampgD3s) H ampgDs) D2g)
e) 4D3s) H 2Dg) 22Dg)
5) What is the dierence dierence eteen and What is
the sign of for exothermic and endothermic reactions nder
hat circumstances
17) What are the sign convention for C and W
11) Explain the concept of maximum or8
12) free expansion of a gas results into no or8 Explain
13) erive the expression for maximum or8
14) ene enthalpy t constant pressure sho that A
1$) (t is di9cult to calculate lt hoever can e easily
determined Why Explain giving examples
1) tate rst la of thermodynamics Iustify its mathematical
eCuation
1+) Dtain the relationship eteen and for a chemical
reaction
1) What is the expression for or8 done in a chemical reaction
Explain the meaning of each term
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8112019 Chemistry Question 12sci (1)
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a) dissolution of sugar in hot coee
) separation of r and Fr from their mixture
c) spreading of fragrance hen a ottle of perfume is opened
d) Jo of heat from cold oKect to hot oKect
e) heat transfer from ice to room at 2$
37) ene entropy Give its units What does entropy measures
31)Explain ho entropy changes in the folloing processes
a) free=ing of liCuid
) sulimation of solid
c) dissolving of ater in sugar
d) condensation of vapour
32) Which memer of the folloing pairs have larger entropy
Why
a) D2s) or D2g)
) 3Dl) or 2$D2$l)
c) Dg) or 2D4g)
d) eg) or Frg)
e) as) or als)
33) Why is it more convenience to predict spontaneity of reaction
in terms of Gsys rather than total34) ene Gis energy and change in Gis energy What are
the units of Gis energy
3$) tate second la of thermodynamics in terms of entropy and
express it mathematically
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3) tate third la of thermodynamics What is its usefulness
3+) Why is it impossile for any sustance to have an asolute
entropy =ero at temperature greater than 7F
3) (t is impossile for a reaction to e spontaneous yetexothermic Explain ith example
35) (s it possile for a reaction to e nonspontaneous yet
exothermic Explain ith example
47) -redict the sign of in the folloing process Give reasons
for your anser
a) 2D4g) 2D2g)) 6e2D3s) H 32g) 26es) H 32Dg)
c) 2g) H 32g) 23g)
d) ampgD3s) 23g)
e) D2g) D2s)
f) l2g) 2lg)
41) What can e said aout the spontaneity of reactions hen
a) and are oth positive
) and oth are negative
c) is positive and is negative
d) is negative and is positive
42) (dentify hich memer of the folloing pairs has largerentropy Why
a) eg) in a volume of 1 or eg) in a volume of $ oth at 2$
) D2g) at 1atm or D2g) at 17atm oth at the same temperature
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c) 2$Dl) or 2$Dg)
d) $ moles of e or 2 moles of e
43) What are the signs of for the folloing reaction
Explain ith reasons
2g) 2g)
44) erive the relationship eteen G and total
4$) Iustify the inclusion of Crev and 0 in the denition of entropylt
A Crevgt 0
4) 0he increase in entropy of a system alone does not guarantee
the spontaneity of a process Explain
4+) 0he criterion of spontaneity in terms of Gis energy is the
same as that laid don y second la of thermodynamic o
PROBLEMS
1) 0hree moles of an ideal gas are expanded isothermally from a
volume of 377cm3 to 2$ at 377F against a pressure of 15atm
alculate the or8 done in atm and Koules2) Dne mole of an ideal gas is compressed from $77cm3 against a
constant pressure of 121 17$-a 0he or8 involved in the
process is 3$7I alculate the nal volume
3) alculate the maximum or8 hen 24g of oxygen are
expanded isothermally and reversily from a pressure of 1
17$-a to 1778-a at 25F
4) 0hree moles of an ideal gas are compressed isothermally andreversily to a volume of 2 0he or8 done is 2538I at 22
alculate the initial volume of a gas
8112019 Chemistry Question 12sci (1)
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$) 2 172 8g of nitrogen is expanded isothermally and
reversily at 377F from 1$1$ 17$ m 2 hen the or8 done is
found to e 1+338 I 6ind the nal pressure
) sample of a gas asors 47778I of heata) if volume remains constantlt hat is
) uppose that in addition to asorption of heat y the samplelt
the surrounding does 27778I of or8 on the samplelt hat is
c) uppose that as the original sample asors heatlt it expands
against atmospheric pressure and does 778 I of or8 on its
surroundings What is
+) alculate the or8 done in each of the folloing reactions
tate hether or8 is done on or y the system
a) 0he oxidation of one mole of D2 at $7
2D2g) H D2g) 2D3g)
) decomposition of 2 moles of 4D3 at 177
4D3s) 2Dg) H 22Dg)
) 0he enthalpy change for the reaction
24g) H 2g) 2g) is 27I hen 177m of ethylene and
177m of 2 react at 1atm pressure alculate the pressure
volume or8 and
5) alculate standard enthalpy of the reaction
6e2D3s) H 3Dg) 26es) H 3D2g) from the folloing data
f 76e2D3)A2428Imol1ltf 7D)A117$8Imol1lt
f 7D2)A353$8Imol1
8112019 Chemistry Question 12sci (1)
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8112019 Chemistry Question 12sci (1)
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Electro chemitry
Theory
1ene the terms resistivitylt conductivity and molar
conductivity Give its ( units
2Explain the terms conductivity and molar conductivity o are
they interrelated
3Why does conductivity of s solution decrease on dilution of a
solution
4o does molar conductivity of an electrolyte vary ith
concentration
$o does the variation in molar conductivity of an electrolyte
ith concentration diers for strong and ea8 electrolytes
Explain the dierent ehaviour of strong and ea8 electrolytes
toards the variation of conductivity ith concentration
+tate and explain Fohlrausch la of independent migration of
ions o it is useful to determine the molar conductivity of ea8
electrolytes at =ero concentration
o is the molar conductivity of strong electrolytes at =ero
concentration determined y graphical method Why is this
method not useful for ea8 electrolytes
5What is cell constant What is its unit o is it determined
17ene anode and cathode
11 Why is cathode in electrolytic cell considered to e negative
and anode positive
12 -redict the half cell reactions that occur hen fused Fl is
electroly=ed in a cell ith inert electrodes What is the overall cell
reaction
8112019 Chemistry Question 12sci (1)
httpslidepdfcomreaderfullchemistry-question-12sci-1 1838
13 tate 6aradayBs las of electrolysis
14o ill you calculate the numer of moles of electrons
actually passed and mass of the sustance produced during
electrolysis of a salt solution using reaction stoichiometry1$o many electrons ill have a total charge of 1 coulom
1 o many faradayBs ould e reCuired to plate out 177 mole
of free metal from the folloing cations
a) ampg2H
) r3H
c) -2H
d) uH
1+ ene coulom and faraday
1 escrie the electrolysis of molten al using inert
electrodes
15 What is the dierence eteen electrolytic cell and voltaic
cell
27 Why is anode in galvanic cell considered to e negative and
cathode positive electrode
21 8etch the cell for the electrolysis of molten al (ndicate
cathodelt anode and their signs ho the Jo of electrons and
ions
22 What is salt ridge What are its functions in galvanic cell
23 What are the conventions used to rite cell diagramcell
formula)
24 escrie the construction of aniel cell Write electrode half
reactions and net cell reaction in aniel cell
8112019 Chemistry Question 12sci (1)
httpslidepdfcomreaderfullchemistry-question-12sci-1 1938
2$ escrie the folloing types of electrodes giving one
examplelt ith reference to formulationlt electrode reaction and
ernst eCuation for electrode potential
a) metalsparingly salt electrode) gas electrode
2 What is redox electrode Give one example ith formulationlt
electrode reaction and ernst eCuation for electrode potential
2+ ene the terms oxidation potentiallt reduction potential and
cell potential
2 What conditions are reCuired for a cell potential to e calledstandard cell potential
25 6ormulate a cell for each of the folloing electrode reactions
a) n2H aC) H 2gl s) L n4H aC) H 2gs) H2l aC)
) ampg s) H r2l) L ampg2H aC) H 2r aC)
37 6ormulate a cell from the folloing electrode reactions
a) l2g) H 2e L 2l aC)
) 2( aC) L (2s) H 2e
31 What are standard electrode potential and standard emf of
the galvanic cell
32 Write ernst eCuation and explain the terms involved in it
What part of the eCuation represents the correction factor for
nonstandard state conditions
33 Write ernst eCuation for the folloing reactions
a) rs) H 36e3H aC) L r3H aC) H 36e2H aC)
) l3H aC) H 3e L l s)
8112019 Chemistry Question 12sci (1)
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34 onsider the folloing E7 values and half reactions
(2s) H 2e L 2( aC) E7A7$3$M
u2H aC) H 2e L u s) E7A733+M
d2H aC) H 2e L ds) E7A77473
a) Which of the metals or nonmetals or ions is the strongest
oxidi=ing agent and hich is the strongest reducing agent
) 0he half reactions can e used to construct three galvanic
cells Which ill have the highest cell potential
3$ -redict hether
a) gH can oxidi=e - to -2H under standard state condition
) E7gA7+55M and E7
-A712M
3 -redict hether the folloing reactions occur under standard
state conditions
a) Dxidation of gs) y l2g) E7gA7Mlt E7
l2A13M
) eduction of 6e
3H
to 6e
2H
y us) E
7
6e3Hlt 6e2H A 7++MltE7uA14M
3+ 8etch and descrie the operation of
a) dry cell
) 2D2 fuel cell
3 What are the advantages and disadvantages of fuel cells
35 8etch lead storage cell
47 Write electrode reaction and overall cell reaction during the
operation of lead storage cell
41 Write electrode reaction and overall cell reaction hen lead
accumulator ehaves as an electrolytic cell
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42 o can ernst eCuation e used to sho that electrode
potential is eCual to the standard electrode potential y putting
approximate values in ernst eCuation se u2HNd half cell for
illustration
43 o are G7lt E7cell and eCuilirium constant related for a
particular reaction
44 Why is eCuilirium constant related to E7cell and not Ecell
4$ G7 for a redox reaction depends on the numer of electrons
transferred Explain
4 o does the eCuiliriumlt G7An6E7 explain that an
electrical potential is an intensive property
4+ Write shorthand notation for the cell for each of the folloing
reactions
a) u2H aC) H 2gs) H 2r L u s) H 2gr s)
) n2H aC) is oxidi=ed y r2 l)
4 rrange the folloing reducing agents in order of increasing
strength under standard state conditions 0he standard potentialsfor the reduction half reactions are given
gH aC) 7M)lt l3H aC) 1M)lt 62g) 2+M)lt l2g) 13M)lt
(2s) 7$4M)lt d2H aC) 74M)
45 rrange the folloing oxidi=ing agents in order of increasing
strength under standard state conditions 0he standard potentials
for the reduction half reactions are given
ls) 1M)lt l aC) 13M)lt us) 734M)lt 6es)744M)lt r
aC) 175M)lt is) 72M)
$7 Which species in each of the folloing pairs is etter oxidi=ing
agent under standard state conditions standard potential are
given) Give reasons for your anser
8112019 Chemistry Question 12sci (1)
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a) r2l) 175M) or u3H 14M)
) H aC) or gH aC) 7M)
c) -2H aC) 713M) or o2H 72M)
d) l2 g) 13M) or r3H 7+4M)
$1 Which species in each of the folloing pairs is etter reducing
agent under standard conditions E7 values are given Give
reasons for your anser
a) Fs) 2353M) or ampgs) 23M)
) o2H aC) 11M) or (n s) 714M)
c) e3H aC) 11M) or 0i2H73+M)
d) gl) 7M) or is) 723M)
PROBLEMS
1 conductivity cell lled ith 771amp Fl given at 2$o the
resistance of 74ohms 0he conductivity of Fl at 2$
o
is 7777
CHEMISTRY
d f O DF EEampE0
1) What are dloc8 elements
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2) What are floc8 elements
3) Explain the meaning of
i) 0ransition series ii) (nner transition element
4) Explain the position of the folloing in periodic tale
i) dloc8 elements ii) anthanoids iii) ctinoids
$) Explain the oxidation state of 1st ro elements of transition
series
) Explain the oxidation states of lanthanoids and actinoids
+) Why do lanthanoids form coloured compounds ) Explainlt most of the transition metal compounds are
remar8aly coloured
5) Why chromium has electronic conguration 3d$ 4s1 and not 3d4
4s2
17) Why does copper sho anormal electronic conguration
11) Explainlt the trends in atomic and ionic si=es of lanthanoidsand also of 1st ro elements of transition series
12) What are actinoids
13) What are transuranic elements Write their name
14) Why transition elements sho tendency to form large numer
of complexes
1$) Explain the compounds of copper ((() are coloured ut thoseof =inc are colourless
1) o is potassium dichromate prepared from chrome ion
1+) Write the preparationlt properties and use of potassium
permanganate
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1) Explainlt hy -t(M) complexes are generally octahedral hile
-t(() complexes are sCuare planar
15) ierentiate eteen lanthanoids and actinoids
27) What are chemical tins Give examples
21) Explain hy Gd3H is colourless
COORDINATION COMPOUNDS
1) What is the dierence eteen doule salt and coordinationcompounds
2) Explainlt hy 6e4)2 D4)22D) is a salt ut F 4P6e)Q is a
complex compound
3) Write the formula of the folloing complexes
i) alcium hexa cyano ferrate (()
ii) iammine dichloro platinum
iii) is ethylene diammine) dichloro iridium ((() ion
iv) -entamine caronato chromium ((() D(E
v) 0risethylene diammine ) coalt((() sulphate
vi) iamine ethylene diammine nic8el (() acetate
4) Write the rules hich are applied hile riting the formulas of
coordination compounds
$) ene the terms
i) entral metal atomgtion
ii) igand
8112019 Chemistry Question 12sci (1)
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iii) oordination compound
iv) oordination sphere
v) oordination numer
vi) oordination polyhedral
vii) omoleptic and heteroleptic complexes
viii) harge on the complexes
ix) oordination entity
) Write (- name of the folloing complexes
i) Pr2D)4 l2QD3
ii) P-ten)l4Q
iii) F 2Pi)4Q
iv) sP6el4Q
v) rl3-y)3
vi) F 3Po2D4)3Q
vii) Por2en)2Q
viii) P-tl4Q2
ix) Po2D))en)2Q2H
x) F 3Pl2D4)3Q
+) Explain the importance of principles of additive nomenclature
) (dentify the folloing ions y a simple test forming complex
compound
i) u2H ii) i2H iii) 6e3H iv) o2H
8112019 Chemistry Question 12sci (1)
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5) Dn the asis of WernerBs theory explainlt hy coalt amine
complexlt ol343 hen treated ith gD3 solution
precipitates only one ion even though there are three ions
17) alculate the eective atomic numer E) of the centralmetal atom in the folloing compounds
i) F 3P6e)Q ii) rD)
11) Write the postulates of WernerBs theory
12) Explain the onding in ol333 and ol3$3
13) Explain stereoisomerism in metal complexes ith coordination
numer 4 and 14) Why the tetrahedral complexes do not exhiit geometrical
isomerism
1$) ra cis and trans geometrical isomers of
i) dichlororomo iodo palladium (() ion
ii) P-t(()3)2l2Q
iii) Po((()3)l3Q
iv) Po((()3)42D)lQ2H
1) ra all possile geometrical isomers of P-t(M)
3)2-y)2l2Q2H ion
1+) Write oxidation statelt coordination numer and electronic
conguration of the metal atom in the folloing complexes
i) rl3-y)3 ii) F 4Pampn)Q
1) lassify the folloing ligands into monodentatelt polydentate
and amidentate
i) 3 ii) iii) iv) v) D2 vi) ethylene diammine
vii) oxalate
8112019 Chemistry Question 12sci (1)
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viii) triaminotriethylamine
15) ol3$32D is a pin8 solidlt the solution of this salt is also
pin8 and formed 3mol of gl ith silver nitrate solution Dn
heating pin8 solidlt it loses one ater molecule and forms purplesolid having same ratio of o3l as that of pin8 solid 0he
purple solid hen dissolved in ater and treated ith forms 1 mol
of gl ra the structure and name of the pin8 and purple
solids
27) ame the octahedral complex ions
i) Po2D4) en)2QH ii) transPr)4 3)2Q
21) ra the structures of the folloing complexes
i) Pol4Q2 ii) Pampn3)Q2H iii) P-tlQ iv) iD)4 v) Pi)4Q2
22) (n an octahedral crystal eldlt dra the gure to sho splitting
of dorital
23) What are ea8 eld and strong eld ligands What is spectro
chemical series
24) Pi)4Q2 is diamagnetic hile Pr3)Q3H is paramagnetltexplain
2$) Dn the asis of valence ond theory explain the nature of
onding in the folloing complexes
i) Po6Q3 ii) Po2D4)3Q3
2) lue coloured copper sulphate solution gave folloing
experimental results Explain the same
i) With aCueous potassium chloride it gave right green solution
ii) With aCueous potassium Juoride it gave a green precipitate
2+) ra the structures of optically active isomers of Poen)3Q3H
8112019 Chemistry Question 12sci (1)
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2) ra the geometrical and optical isomers of
i) Pol2en)2QH ii) Polen)23)Q2H
25) What is lin8age isomerism Explain ith an example
37) What are hydrate isomers Explain ith examples
31) Explain the structure of
i) upraammonium sulphate ii) Po3)Q3H
32) What are the limitations of valence ond theory
33) Explain the magnetic properties of coordination compounds
34) Write the salient features of crystal eld theory What are itslimitations
3$) Explain the octahedral geometry of complexes using crystal
eld theory
3) Write a note on colours in coordination compounds
3+) Explain the factors aecting the staility of coordination
compound3) Write rief the applications of coordination compounds
HALOGEN DERIVATIVES O ALANES AND ARENES
1) What are al8yl halides o are they classied
2) Write (- names of the folloing compounds
i)
ii) 2Al
8112019 Chemistry Question 12sci (1)
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iii)
iv)
v)
vi) secutyl chloride
vii) neopentyl romide
viii) tutyl iodide
ix) isopropyl romide
3) o is ethyl romide prepared from
i) Ethyl alcohol ii) ethane iii) ethane
4)Write the preparation of isopropyl chloride using the folloing
reagents
i) -l3 ii) -l$ iii) l2 iv) l v) Dl2
$) o is group replaced y folloing functional rroups
i) OD ii) O iii) O iv) O2
) Write a note on
i) andmeyerBs reaction ii) Wurt= reaction iii) 6in8elstein reaction
iv) 6ittig reaction v) 6riedel raft reaction
+) (dentify and in the folloing
8112019 Chemistry Question 12sci (1)
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) Give the structures of the folloing compounds
i) 3romo2methyl pentane ii) 2romo3ethyl hexane iii) 1
holo utane
iv) pichloroen=ene v) 1lt1lt10richloroethane
5) student has performed an experiment in the laoratory e
mixed ater ith hexane and found to layers separated econd
time he mixed chloroform ith ater and he again found to
layers in the test tue Explain hich ill e upper layer and
hich one ill e loer layer in oth the experiments
17) onvert 1hloroutane into the folloing compounds
i) utane1ol ii) 1(odoutane iii) 3222 iv)
11) 6or each pair of compoundslt state hich compound is etter
2 sustrate
i) 2romoutanelt isopropyl romide ii) 1(odo2lt2dimethyl
propane or isopropyl iodide
12) hoose the memer that ill react faster from the folloing
pairs y 1 mechanism
13) -redict the expected product of sustitution reaction
i) isoutyl chloride mH sodium ethoxide
ii) nutyl chloride H sodium
iii) 1hloro propane H aC potassium hydroxide
iv) aniline H aD2gt l
14) Write the products
i) $22A2 H r L
ii) $A2 H r
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iii)
iv)
v)
1$) (dentify the chiral and achiral molecules
i)
ii)
iii)
1) iscuss 2 mechanism of methyl romide using aCueous
FD ra energy prole diagram1+) Write the mechanism of the reaction hen tutyl chloride is
treated ith aCueous FD ith energy prole diagram
1) ierentiate eteen 1 and 2 mechanism
15) Explain the nature of ond in
i) 322 ii)
27) What are uses of
i) 0 ii) (odoform iii) hloroform iv) aron tetrachloride
21) l8yl halides are polar and miscile ith aterlt explain
22) Which one of the folloing is more easily hydrolysed y
aCueous FD
$l$ and $2l
23) rrange the folloing groups in descending order 2lt D3lt
D3lt DD and l
24) ssign or conguration to each of the folloing
structures
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i)
ii)
iii)
iv)
DDlt -ED E0E
1) What are alcohols o are they classied
2) What are monohydric alcohols o are they classied
4) Write the structures of folloing alcohols
i) 1Ethylcyclohexanol ii) ex3en2ol iii)yclohex2en1ol
iv) -entane1lt4diol
v) 2lt4imethylhexane1lt3lt$triol
$) Explain the folloing
i) -ropan1ol has higher oiling point than nutane
ii) ampethanol is more solule in ater than -ropan1ol
) Write the mechanism of hydration of ethylene to ethyl alcohol
+) -ropan1ol can not e prepared y acid catalyst hydration of
propenelt then ho is propene converted into propan1ol
)5) o is propanone converted into
i) -ropan2ol ii) 2ampethyl propan2ol
17) o ill you otain utan2ol from
8112019 Chemistry Question 12sci (1)
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i) -ropanal ii) utan2one iii) ut2ene
11) o is propan1ol prepared from
i) -ropanal ii) -ropanoic acid
12) o is cyclopentanol prepared from
i) yclopentanone ii) yclopentene
14) Write the mechanism of acid catalysed dehydration of ethanol
to give ethane
1$) Write the structure of aldehyde lt caroxylic acid and ester
that yield folloing alcohol
1+) o ill you prepare
i) 2ampethylutane1ol from an al8ene
ii) cyclohexylmethanol from a Grignard reagent
iii) 1phenylethanol from acetaldehyde
1) o are folloing conversions rought aout
i) en=yl chloride to en=yl alcohol
ii) en=yl alcohol to en=oic acid
iii) 1Ethylcyclohexanol from yclohexanone
15) What are phenols o are they classied
27)21) Give the structures and (- names of isomeric phenols
represented y the molecular formula 17D
22) o is phenol prepared from
8112019 Chemistry Question 12sci (1)
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i) hloroen=ene ii) (sopropyl en=ene iii) en=ene sulphonic
acid iv) aniline
23 ) Explain the folloing
i) -henol is more acidic than phenol
ii) onitrophenol is more acidic than ocresol
iii) pnitrophenol is less volatile than onitrophenol
24) Explain the folloing reactions of phenol
i) FoleBs reaction ii) iemer0iemann reaction
2$) ame the reagents used to convert phenol intoi) picric acid ii) 2lt4lt0riromophenol iii) en=ene iv) ophenol
sulphonic acid
2) What is the action of folloing reagents on phenol i)
romine in 2 at lo temperature
ii) ilute nitric acid at room temperature iii) oncentrated
sulphuric acid at room temperature
2+) Give distinguish test eteen phenol and ethanol
2) What are ethers o are ethers classied
25) What is metamerism Give the structure and (- name of
metamers of 2ampethoxypropane
37) Write the mechanism for acidic dehydration of ethanol
31) o is diethyl ether prepared y continuous ethericationprocess Why is the process so called
32) o ill you prepared methoxyethane from
i) l8yl halide ii) ia=omethane
33) tate the important uses of i) -henol ii) diethyl ether
8112019 Chemistry Question 12sci (1)
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34) Write the mechanism of action of hydrogen romide on tert
utyl methyl ether
3$) Explain the folloing reactions of anisole
i) romination ii) itration iii) 6riedelrafts al8ylation iv)6riedelrafts acylation
3) Explainlt i) 0he OD group attached to aromatic ring in
phenols and ii) 0he al8oxy group in al8yl aryl ethers are ortholt
para directing and activate the aromatic ring toars electrophilic
sustitution
3+) Write the chemical eCuations for Williamson synthesis of 2
Ethoxy2methypentane starting from ethanol and 2ampethylpentan2ol
3) n organic compound ith the formula 417D3 shos
properties of ether and alcohol hen treated ith an excess of
r yields only one compound 1lt2 diromomethane Write
structural formula of ether and that of alcohol
ALDEHYDES ETONES AND CABO$YLIC
ACID
1) Write the structure and give (- names of the folloing
compounds
i) chloropropionaldehyde
ii) Rhydroxyutyraldehyde
iii) isoutyraldehyde
iv) Rmethylvaleraldehyde
8112019 Chemistry Question 12sci (1)
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v) isopropyl methyl 8etone
vi) diisopropyl 8etone
vii) mromoen=aldehyde
viii) dien=yl 8etone
ix) divinyl 8etone
x) allyl methyl 8etone
xi) ethyl phenyl 8etone
xii) nutyrophenone
2) Write the structure of folloing compounds
i) 4ampethyl3nitroen=ophenone ii) 2ampethyl4oxopentanal iii)
3Dxopentanoic acid iv) 4chloropropiophenone v) 3
ampethoxyutanal vi) 4ydroxycyclohaxane caraldehyde
3) o ill you prepare i) propiophenone from propanenitrile ii)
4chloroen=aldehyde from 4chlorotoluene iii)
yclohaxanecaraldehyde from cyclohexylmethanol iv) 4
methoxyacetophenone from anisole v) 4methylen=aldehydefrom toluene
4) rrange the folloing compounds in the increasing order of
their oiling points
i) dimethyl etherlt ethyl alcohollt propanelt acetaldehyde
ii) acetonelt npropyl alcohollt ethyl methyl alcohol and nutane
$) What is the action of hydrogen cyanide in asic medium on i)utanone ii) 2lt4dichloroen=aldehyde
) What is the action of folloing compounds on cyclohexanone in
presence of dry hydrogen chloride
i) ethyl alcohol ii) ethylene glycol
8112019 Chemistry Question 12sci (1)
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+) Write the structure of product in the folloing reactions
i) 322D3
ii) $2D3
) Write the structures of caronyl compounds and ammonia
derivatives that comine to give folloing imines
i)
ii)
iii)
iv)v)
vi)
5) Write the chemical eCuations for aldol condensation or
anni==aro reaction that folloing compounds undergo
i) -ropanal ii) 2ampethylpropanal iii) -entanal iv) 3
ampethylutanal v) cetophenonevi) pampethoxyen=aldehyde vii) 2ampethylcyclohaxanone viii)
chloral ix) yclopentanone
x) -henyl acetaldehyde xi) 1-henylpropan1one
17) Write the structure of the maKor product of the folloing
crossed aldol condensation
i) formaldehyde and propionaldehydeii) en=aldehyde ith acetone
11) (dentify the compounds SBlt SB and SB in the folloing
reactions and rerite the complete eCuations
i)
8112019 Chemistry Question 12sci (1)
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ii)
12)o ill you eect folloing tostep conversions
i) -ropanal into utanone ii) utanone into ut2ene iii)
en=ene into mromoacetophenone iv) ex3yne into exan
3one v) en=oic acid into mnitroen=ylalcohol
13) o ill you convert en=aldehyde into folloing compounds
ampore than one steps may e reCuired
i) en=ophenone ii) en=oic acid iii) 3-henylpropan1ol iv)hydroxyphenylacetic acid
14) Give a chemical test to distinguish eteen folloing pairs of
compounds
i) Ethanal and propanone ii) -rpopanal and propanone iii)
-entane2one and pentane3one
1$) Write the structure and (- names of folloing caroxylicacids
i) ltRdimethylutanoic acid ii) Rphenylutyric acid iii) 1038389
chloromethylvaleric acid
8112019 Chemistry Question 12sci (1)
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i) even types of unit cell
ii) 0hree types of cuic cell
iii) 0o types of tetragonal unit cell
iv) 6our types of orthorhomic unit cell
v) 0o types of monoclinic unit cell
vi) 0riclinic unit cell
vii) -rimitive hexagonal unit cell
17) istinguish eteen the folloing
i) rystalline lattice and unit cell
ii) exagonal close pac8ing and cuic close pac8ing
iii)0etrahedral void and octahedral void
11) Give the numer of lattice points in one unit cell of crystal
structure
i) imple cuic ii) 6ace centered cuic iii) ody centered cuic
iv) 6ace centered tetragonal
12)Explain hy
i) (onic solids are hard and rittle
ii) olid ice is lighter than ater
iii) alculate the percentage e9ciency of pac8ing in case of
folloing crystal
a) imple cuic ) ody centered cuic c) 6ace centered cuic
ith all atoms touching one another
13) Explain ith the help of neat diagram and and
type of three dimensional pac8ing
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14) Explain the pac8ing and voids in ionic solids
1$) Write note on radius ratio rule for ionic compounds
1) Explain ho to deduce coordination numer of cations
1+) What are point defects
1) Explain interstitial defect and impurity defect
15) Explain the origin of electrical properties in solids
27) What are semiconductors escrie the to main types of
semiconductors
21) Explain the origin of magnetic properties in solids22) Explain
() iamagnetism ii) -aramagnetism iii) ferromagnetism
23) lassify the folloing semiconductors into n or p type
i) doped ith i
ii) s doped ith i
iii) - doped ith i
iv) Ge doped ith (n
24) Explain and theory
2$) istinguish eteen conductorslt semiconductors and
insulators
2) Explain the termsi) chott8y defect iii) 6ren8el defect
PROBLEMS
8112019 Chemistry Question 12sci (1)
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() ioium is found to crystalli=es ith cc structure and found to
have density of $$ggtcm3 etermine the atomic radius of
nioium if its atomic mass is 532) opper crystalli=es into 6 structure and the unit cell has
length of edge 31 17 cm alculate the density of copper if
the molar mass of u is 3$ggtmol
3) ilver crystalli=es in 6 structure ith edge length of unit celllt
47+ 17 cm and if density of metallic silver is17$ggtcm3
alculate the molecular mass of silver
4) etermine the density of cesium chloride hich crystalli=es in type of structure ith the edge length 4121pm 0he atomic
masses of cesium and chloride are 133 and 3$$ respectively
$) nit cell of iron crystal has edge length of 2pm and density
of +ggtcm3etermine the type of crystal lattice 6eA$)
) n atom crystalli=es in 6 crystal lattice and a density of
17ggtcm3 ith unit cell edge length of 177pm alculate numer of
atoms present in 1g of crystal
+) n element and constitute type crystalline structure
Element occupies ody center position and is at the corners of
cue What is the formula of the compound What are the
coordination numers of and
) toms and form 6 crystalline structure tom is
present at the corners of the cue and atom is at the faces of
the cue What is the formula of the compound
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SOLUTION AND COLLIGATIVE PROPERTY
THEORY
1) ene the terms solutionlt solutelt solvent and concentration
2) What are the dierent types of solution
3) Explain dierent ays in hich concentration of a solution can
e expressed
4)ene i) percentage y eightlt ii) mole fractionlt iii) ampolalitylt iv)
ampolarity
$)ene the term colligative property Give examples
) tate and explain enryBs la
+) Explain solid solution
) What is a vapour pressure of liCuid
5) Explain the eect of temperature on the vapour pressure of
liCuid
17) What are the factors hich aects vapour pressure
11) What is loering of vapour pressure of a solution
12) What is relative loering of vapour pressure
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13) tate aoultBs la and otain expression for loering of
vapour pressure hen nonvolatile solute is dissolved
14) erive the relationship eteen relative loering of vapour
pressure and molar mass of solute1$) What is oiling point of liCuid
1) What is elevation of oiling point
1+) What is molal elevation constant oes it depend on the
nature of the solute
1) erive the relation eteen elevation of oiling point and
molar mass of the solute15) ene free=ing point of liCuid
27) What causes depression in free=ing point
21) ene molal depression constant
22) o molar mass of a nonvolatile solute is related to the
depression in free=ing point erive an eCuation
23) What is osmosis
24) ene semipermeale memrane and osmotic pressure
2$) ene the terms i) (sotonic solution ii) ypertonic solution
iii) ypotonic solution
2) tate i) vant ooyles la ii) vant oharles la
2+) erive vant o eCuation for osmotic pressure of a solution
2) o molar mass of a solute is determined from osmotic
pressure measurements
25) Explain anormal osmotic pressure
37) tate vant ovogadroBs la
8112019 Chemistry Question 12sci (1)
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31) Explain
i) normal molecular masses
ii) vant o factor
32) erive the eCuations
i) A
ii) A
PROBLEMS
1) 342g of glucose is dissolved in 477g of ater alculate
percentage y mass of glucose solution
2) solution is prepared y dissolving certain amount of solute in
$77g of ater 0he percentage y mass of a solute in solution is
23 alculate mass of solute
3)4cm3 of methyl alcohol is dissolved in 2$2g of ater
alculatelt i) percentage y mass of methyl alcohol ii) ampole
fraction of methyl alcohol and ater Given density of methyl
alcohol A 7+5$2ggtcm3 and A12lt A1 and DA1)
4) 12cm3 of en=ene is dissolved in 1cm3 of xylene alculate
y volume of en=ene
$) alculate mole fraction of l in solution of l containing
24 of l y massA1lt lA3$$)
) alculate mole fraction of solute in its 2 molal aCueous
solution
8112019 Chemistry Question 12sci (1)
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+) alculate the mole fractionlt molality and molarity of D3 in a
solution containing 122 D3 Given density of
D3A173ggtcm3lt A1lt A14lt DA1
) ulphuric acid is 5$ y mass alculate mole fraction andmolarity of 2D4 of density 151ggtcm3
5) Cueous solution of aD is mar8ed 17gt) 0he density of
the solution is 17+7ggtcm3
alculatelt
i) molarity ii) molality and iii) mole fraction of aD and ater
aA23lt A1 and DA1
17) attery acid is 422amp aCueous 2D4 solutionlt and has density
of 121ggtcm3 What is the molality of 2D4 A1lt A32lt DA1
11) 0he vapour pressure of 21 solution of a nonelectrolyte in
ater at 177 is +$$mm g alculate the molar mass of the
solute
12) 0he vapour pressure of ater at 27 is 1+mm g alculate
the vapour pressure of a solution containing 2g of
urea2D2) in $7g of ater A14lt A12lt A1
13) (n an experimentlt 174g of mannitol ere dissolved in 177g
of ater 0he vapour pressure of ater as loered y 7375mm
g from 1+$3$mm g alculate the molar mass of mannitol
14) solution containing 7$12g of naphthalene molar mass A
121+ggtmol) in $7g of l4 gives a oiling point elevation of
7472F While a solution of 721g of un8non solute in the
same mass of the solvent gives a oiling point elevation of 74+F
6ind the molar mass of the un8non solute
F for l4A $73F 8g mol1 of solvent)
8112019 Chemistry Question 12sci (1)
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1$) alculate the mass in grams of an impurity of molar mass
177gmol1 hich ould e reCuired to raise the oiling point of
$7g of chloroform y737F
F for chloroformA 33F 8g mol
1
)1) oiling point of a solvent is 72 When 7415g of the solute
of molar mass 2$24g mol1 as dissolved in +$g of the solventlt
the oiling point of the solution as found to e 72$ 6ind
the molal elevation constant
1+) 7ml of glacial acetic acid ith density 17gm 1 is
dissolved in 18g ater and the solution fro=e at 7727$
alculate vant o factor and F f for ater is1F 8g mol1
1) enryBs la constant for soluility of methane in en=ene is
42+ 17$mm g at constant temperature alculate the
soluility of methane at +7mm g pressure at same
temperature
CHEMICAL THERMODYNAMICS AND ENERGIES
Theory
1)ene the terms systemlt surroundinglt open systemlt close
systemlt isolated systemlt exothermic reactionslt endothermic
reactionslt extensive properties and intensive properties
2) Explain the term state function Give to examples of state
functions and to example of path function
3) Explain thermodynamics eCuilirium
4) istinguish eteen isothermal and adiaatic process
$) What is a reversile process What are its features
) ho that pressure times volume is eCual to or8
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+) erive the expression for or8 hen a gas expands against
constant external pressure
) lassify the folloing reactions according to or8 done y the
systemlt on the system and no or8 done if pressure is constanta) 2g) H l2g) 2lg)
) 3D2g) 2D3g)
c) 2D2g) D2g)H 2D3g)
d) ampgD3s) H ampgDs) D2g)
e) 4D3s) H 2Dg) 22Dg)
5) What is the dierence dierence eteen and What is
the sign of for exothermic and endothermic reactions nder
hat circumstances
17) What are the sign convention for C and W
11) Explain the concept of maximum or8
12) free expansion of a gas results into no or8 Explain
13) erive the expression for maximum or8
14) ene enthalpy t constant pressure sho that A
1$) (t is di9cult to calculate lt hoever can e easily
determined Why Explain giving examples
1) tate rst la of thermodynamics Iustify its mathematical
eCuation
1+) Dtain the relationship eteen and for a chemical
reaction
1) What is the expression for or8 done in a chemical reaction
Explain the meaning of each term
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8112019 Chemistry Question 12sci (1)
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a) dissolution of sugar in hot coee
) separation of r and Fr from their mixture
c) spreading of fragrance hen a ottle of perfume is opened
d) Jo of heat from cold oKect to hot oKect
e) heat transfer from ice to room at 2$
37) ene entropy Give its units What does entropy measures
31)Explain ho entropy changes in the folloing processes
a) free=ing of liCuid
) sulimation of solid
c) dissolving of ater in sugar
d) condensation of vapour
32) Which memer of the folloing pairs have larger entropy
Why
a) D2s) or D2g)
) 3Dl) or 2$D2$l)
c) Dg) or 2D4g)
d) eg) or Frg)
e) as) or als)
33) Why is it more convenience to predict spontaneity of reaction
in terms of Gsys rather than total34) ene Gis energy and change in Gis energy What are
the units of Gis energy
3$) tate second la of thermodynamics in terms of entropy and
express it mathematically
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3) tate third la of thermodynamics What is its usefulness
3+) Why is it impossile for any sustance to have an asolute
entropy =ero at temperature greater than 7F
3) (t is impossile for a reaction to e spontaneous yetexothermic Explain ith example
35) (s it possile for a reaction to e nonspontaneous yet
exothermic Explain ith example
47) -redict the sign of in the folloing process Give reasons
for your anser
a) 2D4g) 2D2g)) 6e2D3s) H 32g) 26es) H 32Dg)
c) 2g) H 32g) 23g)
d) ampgD3s) 23g)
e) D2g) D2s)
f) l2g) 2lg)
41) What can e said aout the spontaneity of reactions hen
a) and are oth positive
) and oth are negative
c) is positive and is negative
d) is negative and is positive
42) (dentify hich memer of the folloing pairs has largerentropy Why
a) eg) in a volume of 1 or eg) in a volume of $ oth at 2$
) D2g) at 1atm or D2g) at 17atm oth at the same temperature
8112019 Chemistry Question 12sci (1)
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c) 2$Dl) or 2$Dg)
d) $ moles of e or 2 moles of e
43) What are the signs of for the folloing reaction
Explain ith reasons
2g) 2g)
44) erive the relationship eteen G and total
4$) Iustify the inclusion of Crev and 0 in the denition of entropylt
A Crevgt 0
4) 0he increase in entropy of a system alone does not guarantee
the spontaneity of a process Explain
4+) 0he criterion of spontaneity in terms of Gis energy is the
same as that laid don y second la of thermodynamic o
PROBLEMS
1) 0hree moles of an ideal gas are expanded isothermally from a
volume of 377cm3 to 2$ at 377F against a pressure of 15atm
alculate the or8 done in atm and Koules2) Dne mole of an ideal gas is compressed from $77cm3 against a
constant pressure of 121 17$-a 0he or8 involved in the
process is 3$7I alculate the nal volume
3) alculate the maximum or8 hen 24g of oxygen are
expanded isothermally and reversily from a pressure of 1
17$-a to 1778-a at 25F
4) 0hree moles of an ideal gas are compressed isothermally andreversily to a volume of 2 0he or8 done is 2538I at 22
alculate the initial volume of a gas
8112019 Chemistry Question 12sci (1)
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$) 2 172 8g of nitrogen is expanded isothermally and
reversily at 377F from 1$1$ 17$ m 2 hen the or8 done is
found to e 1+338 I 6ind the nal pressure
) sample of a gas asors 47778I of heata) if volume remains constantlt hat is
) uppose that in addition to asorption of heat y the samplelt
the surrounding does 27778I of or8 on the samplelt hat is
c) uppose that as the original sample asors heatlt it expands
against atmospheric pressure and does 778 I of or8 on its
surroundings What is
+) alculate the or8 done in each of the folloing reactions
tate hether or8 is done on or y the system
a) 0he oxidation of one mole of D2 at $7
2D2g) H D2g) 2D3g)
) decomposition of 2 moles of 4D3 at 177
4D3s) 2Dg) H 22Dg)
) 0he enthalpy change for the reaction
24g) H 2g) 2g) is 27I hen 177m of ethylene and
177m of 2 react at 1atm pressure alculate the pressure
volume or8 and
5) alculate standard enthalpy of the reaction
6e2D3s) H 3Dg) 26es) H 3D2g) from the folloing data
f 76e2D3)A2428Imol1ltf 7D)A117$8Imol1lt
f 7D2)A353$8Imol1
8112019 Chemistry Question 12sci (1)
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8112019 Chemistry Question 12sci (1)
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Electro chemitry
Theory
1ene the terms resistivitylt conductivity and molar
conductivity Give its ( units
2Explain the terms conductivity and molar conductivity o are
they interrelated
3Why does conductivity of s solution decrease on dilution of a
solution
4o does molar conductivity of an electrolyte vary ith
concentration
$o does the variation in molar conductivity of an electrolyte
ith concentration diers for strong and ea8 electrolytes
Explain the dierent ehaviour of strong and ea8 electrolytes
toards the variation of conductivity ith concentration
+tate and explain Fohlrausch la of independent migration of
ions o it is useful to determine the molar conductivity of ea8
electrolytes at =ero concentration
o is the molar conductivity of strong electrolytes at =ero
concentration determined y graphical method Why is this
method not useful for ea8 electrolytes
5What is cell constant What is its unit o is it determined
17ene anode and cathode
11 Why is cathode in electrolytic cell considered to e negative
and anode positive
12 -redict the half cell reactions that occur hen fused Fl is
electroly=ed in a cell ith inert electrodes What is the overall cell
reaction
8112019 Chemistry Question 12sci (1)
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13 tate 6aradayBs las of electrolysis
14o ill you calculate the numer of moles of electrons
actually passed and mass of the sustance produced during
electrolysis of a salt solution using reaction stoichiometry1$o many electrons ill have a total charge of 1 coulom
1 o many faradayBs ould e reCuired to plate out 177 mole
of free metal from the folloing cations
a) ampg2H
) r3H
c) -2H
d) uH
1+ ene coulom and faraday
1 escrie the electrolysis of molten al using inert
electrodes
15 What is the dierence eteen electrolytic cell and voltaic
cell
27 Why is anode in galvanic cell considered to e negative and
cathode positive electrode
21 8etch the cell for the electrolysis of molten al (ndicate
cathodelt anode and their signs ho the Jo of electrons and
ions
22 What is salt ridge What are its functions in galvanic cell
23 What are the conventions used to rite cell diagramcell
formula)
24 escrie the construction of aniel cell Write electrode half
reactions and net cell reaction in aniel cell
8112019 Chemistry Question 12sci (1)
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2$ escrie the folloing types of electrodes giving one
examplelt ith reference to formulationlt electrode reaction and
ernst eCuation for electrode potential
a) metalsparingly salt electrode) gas electrode
2 What is redox electrode Give one example ith formulationlt
electrode reaction and ernst eCuation for electrode potential
2+ ene the terms oxidation potentiallt reduction potential and
cell potential
2 What conditions are reCuired for a cell potential to e calledstandard cell potential
25 6ormulate a cell for each of the folloing electrode reactions
a) n2H aC) H 2gl s) L n4H aC) H 2gs) H2l aC)
) ampg s) H r2l) L ampg2H aC) H 2r aC)
37 6ormulate a cell from the folloing electrode reactions
a) l2g) H 2e L 2l aC)
) 2( aC) L (2s) H 2e
31 What are standard electrode potential and standard emf of
the galvanic cell
32 Write ernst eCuation and explain the terms involved in it
What part of the eCuation represents the correction factor for
nonstandard state conditions
33 Write ernst eCuation for the folloing reactions
a) rs) H 36e3H aC) L r3H aC) H 36e2H aC)
) l3H aC) H 3e L l s)
8112019 Chemistry Question 12sci (1)
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34 onsider the folloing E7 values and half reactions
(2s) H 2e L 2( aC) E7A7$3$M
u2H aC) H 2e L u s) E7A733+M
d2H aC) H 2e L ds) E7A77473
a) Which of the metals or nonmetals or ions is the strongest
oxidi=ing agent and hich is the strongest reducing agent
) 0he half reactions can e used to construct three galvanic
cells Which ill have the highest cell potential
3$ -redict hether
a) gH can oxidi=e - to -2H under standard state condition
) E7gA7+55M and E7
-A712M
3 -redict hether the folloing reactions occur under standard
state conditions
a) Dxidation of gs) y l2g) E7gA7Mlt E7
l2A13M
) eduction of 6e
3H
to 6e
2H
y us) E
7
6e3Hlt 6e2H A 7++MltE7uA14M
3+ 8etch and descrie the operation of
a) dry cell
) 2D2 fuel cell
3 What are the advantages and disadvantages of fuel cells
35 8etch lead storage cell
47 Write electrode reaction and overall cell reaction during the
operation of lead storage cell
41 Write electrode reaction and overall cell reaction hen lead
accumulator ehaves as an electrolytic cell
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42 o can ernst eCuation e used to sho that electrode
potential is eCual to the standard electrode potential y putting
approximate values in ernst eCuation se u2HNd half cell for
illustration
43 o are G7lt E7cell and eCuilirium constant related for a
particular reaction
44 Why is eCuilirium constant related to E7cell and not Ecell
4$ G7 for a redox reaction depends on the numer of electrons
transferred Explain
4 o does the eCuiliriumlt G7An6E7 explain that an
electrical potential is an intensive property
4+ Write shorthand notation for the cell for each of the folloing
reactions
a) u2H aC) H 2gs) H 2r L u s) H 2gr s)
) n2H aC) is oxidi=ed y r2 l)
4 rrange the folloing reducing agents in order of increasing
strength under standard state conditions 0he standard potentialsfor the reduction half reactions are given
gH aC) 7M)lt l3H aC) 1M)lt 62g) 2+M)lt l2g) 13M)lt
(2s) 7$4M)lt d2H aC) 74M)
45 rrange the folloing oxidi=ing agents in order of increasing
strength under standard state conditions 0he standard potentials
for the reduction half reactions are given
ls) 1M)lt l aC) 13M)lt us) 734M)lt 6es)744M)lt r
aC) 175M)lt is) 72M)
$7 Which species in each of the folloing pairs is etter oxidi=ing
agent under standard state conditions standard potential are
given) Give reasons for your anser
8112019 Chemistry Question 12sci (1)
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a) r2l) 175M) or u3H 14M)
) H aC) or gH aC) 7M)
c) -2H aC) 713M) or o2H 72M)
d) l2 g) 13M) or r3H 7+4M)
$1 Which species in each of the folloing pairs is etter reducing
agent under standard conditions E7 values are given Give
reasons for your anser
a) Fs) 2353M) or ampgs) 23M)
) o2H aC) 11M) or (n s) 714M)
c) e3H aC) 11M) or 0i2H73+M)
d) gl) 7M) or is) 723M)
PROBLEMS
1 conductivity cell lled ith 771amp Fl given at 2$o the
resistance of 74ohms 0he conductivity of Fl at 2$
o
is 7777
CHEMISTRY
d f O DF EEampE0
1) What are dloc8 elements
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2) What are floc8 elements
3) Explain the meaning of
i) 0ransition series ii) (nner transition element
4) Explain the position of the folloing in periodic tale
i) dloc8 elements ii) anthanoids iii) ctinoids
$) Explain the oxidation state of 1st ro elements of transition
series
) Explain the oxidation states of lanthanoids and actinoids
+) Why do lanthanoids form coloured compounds ) Explainlt most of the transition metal compounds are
remar8aly coloured
5) Why chromium has electronic conguration 3d$ 4s1 and not 3d4
4s2
17) Why does copper sho anormal electronic conguration
11) Explainlt the trends in atomic and ionic si=es of lanthanoidsand also of 1st ro elements of transition series
12) What are actinoids
13) What are transuranic elements Write their name
14) Why transition elements sho tendency to form large numer
of complexes
1$) Explain the compounds of copper ((() are coloured ut thoseof =inc are colourless
1) o is potassium dichromate prepared from chrome ion
1+) Write the preparationlt properties and use of potassium
permanganate
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1) Explainlt hy -t(M) complexes are generally octahedral hile
-t(() complexes are sCuare planar
15) ierentiate eteen lanthanoids and actinoids
27) What are chemical tins Give examples
21) Explain hy Gd3H is colourless
COORDINATION COMPOUNDS
1) What is the dierence eteen doule salt and coordinationcompounds
2) Explainlt hy 6e4)2 D4)22D) is a salt ut F 4P6e)Q is a
complex compound
3) Write the formula of the folloing complexes
i) alcium hexa cyano ferrate (()
ii) iammine dichloro platinum
iii) is ethylene diammine) dichloro iridium ((() ion
iv) -entamine caronato chromium ((() D(E
v) 0risethylene diammine ) coalt((() sulphate
vi) iamine ethylene diammine nic8el (() acetate
4) Write the rules hich are applied hile riting the formulas of
coordination compounds
$) ene the terms
i) entral metal atomgtion
ii) igand
8112019 Chemistry Question 12sci (1)
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iii) oordination compound
iv) oordination sphere
v) oordination numer
vi) oordination polyhedral
vii) omoleptic and heteroleptic complexes
viii) harge on the complexes
ix) oordination entity
) Write (- name of the folloing complexes
i) Pr2D)4 l2QD3
ii) P-ten)l4Q
iii) F 2Pi)4Q
iv) sP6el4Q
v) rl3-y)3
vi) F 3Po2D4)3Q
vii) Por2en)2Q
viii) P-tl4Q2
ix) Po2D))en)2Q2H
x) F 3Pl2D4)3Q
+) Explain the importance of principles of additive nomenclature
) (dentify the folloing ions y a simple test forming complex
compound
i) u2H ii) i2H iii) 6e3H iv) o2H
8112019 Chemistry Question 12sci (1)
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5) Dn the asis of WernerBs theory explainlt hy coalt amine
complexlt ol343 hen treated ith gD3 solution
precipitates only one ion even though there are three ions
17) alculate the eective atomic numer E) of the centralmetal atom in the folloing compounds
i) F 3P6e)Q ii) rD)
11) Write the postulates of WernerBs theory
12) Explain the onding in ol333 and ol3$3
13) Explain stereoisomerism in metal complexes ith coordination
numer 4 and 14) Why the tetrahedral complexes do not exhiit geometrical
isomerism
1$) ra cis and trans geometrical isomers of
i) dichlororomo iodo palladium (() ion
ii) P-t(()3)2l2Q
iii) Po((()3)l3Q
iv) Po((()3)42D)lQ2H
1) ra all possile geometrical isomers of P-t(M)
3)2-y)2l2Q2H ion
1+) Write oxidation statelt coordination numer and electronic
conguration of the metal atom in the folloing complexes
i) rl3-y)3 ii) F 4Pampn)Q
1) lassify the folloing ligands into monodentatelt polydentate
and amidentate
i) 3 ii) iii) iv) v) D2 vi) ethylene diammine
vii) oxalate
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viii) triaminotriethylamine
15) ol3$32D is a pin8 solidlt the solution of this salt is also
pin8 and formed 3mol of gl ith silver nitrate solution Dn
heating pin8 solidlt it loses one ater molecule and forms purplesolid having same ratio of o3l as that of pin8 solid 0he
purple solid hen dissolved in ater and treated ith forms 1 mol
of gl ra the structure and name of the pin8 and purple
solids
27) ame the octahedral complex ions
i) Po2D4) en)2QH ii) transPr)4 3)2Q
21) ra the structures of the folloing complexes
i) Pol4Q2 ii) Pampn3)Q2H iii) P-tlQ iv) iD)4 v) Pi)4Q2
22) (n an octahedral crystal eldlt dra the gure to sho splitting
of dorital
23) What are ea8 eld and strong eld ligands What is spectro
chemical series
24) Pi)4Q2 is diamagnetic hile Pr3)Q3H is paramagnetltexplain
2$) Dn the asis of valence ond theory explain the nature of
onding in the folloing complexes
i) Po6Q3 ii) Po2D4)3Q3
2) lue coloured copper sulphate solution gave folloing
experimental results Explain the same
i) With aCueous potassium chloride it gave right green solution
ii) With aCueous potassium Juoride it gave a green precipitate
2+) ra the structures of optically active isomers of Poen)3Q3H
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2) ra the geometrical and optical isomers of
i) Pol2en)2QH ii) Polen)23)Q2H
25) What is lin8age isomerism Explain ith an example
37) What are hydrate isomers Explain ith examples
31) Explain the structure of
i) upraammonium sulphate ii) Po3)Q3H
32) What are the limitations of valence ond theory
33) Explain the magnetic properties of coordination compounds
34) Write the salient features of crystal eld theory What are itslimitations
3$) Explain the octahedral geometry of complexes using crystal
eld theory
3) Write a note on colours in coordination compounds
3+) Explain the factors aecting the staility of coordination
compound3) Write rief the applications of coordination compounds
HALOGEN DERIVATIVES O ALANES AND ARENES
1) What are al8yl halides o are they classied
2) Write (- names of the folloing compounds
i)
ii) 2Al
8112019 Chemistry Question 12sci (1)
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iii)
iv)
v)
vi) secutyl chloride
vii) neopentyl romide
viii) tutyl iodide
ix) isopropyl romide
3) o is ethyl romide prepared from
i) Ethyl alcohol ii) ethane iii) ethane
4)Write the preparation of isopropyl chloride using the folloing
reagents
i) -l3 ii) -l$ iii) l2 iv) l v) Dl2
$) o is group replaced y folloing functional rroups
i) OD ii) O iii) O iv) O2
) Write a note on
i) andmeyerBs reaction ii) Wurt= reaction iii) 6in8elstein reaction
iv) 6ittig reaction v) 6riedel raft reaction
+) (dentify and in the folloing
8112019 Chemistry Question 12sci (1)
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) Give the structures of the folloing compounds
i) 3romo2methyl pentane ii) 2romo3ethyl hexane iii) 1
holo utane
iv) pichloroen=ene v) 1lt1lt10richloroethane
5) student has performed an experiment in the laoratory e
mixed ater ith hexane and found to layers separated econd
time he mixed chloroform ith ater and he again found to
layers in the test tue Explain hich ill e upper layer and
hich one ill e loer layer in oth the experiments
17) onvert 1hloroutane into the folloing compounds
i) utane1ol ii) 1(odoutane iii) 3222 iv)
11) 6or each pair of compoundslt state hich compound is etter
2 sustrate
i) 2romoutanelt isopropyl romide ii) 1(odo2lt2dimethyl
propane or isopropyl iodide
12) hoose the memer that ill react faster from the folloing
pairs y 1 mechanism
13) -redict the expected product of sustitution reaction
i) isoutyl chloride mH sodium ethoxide
ii) nutyl chloride H sodium
iii) 1hloro propane H aC potassium hydroxide
iv) aniline H aD2gt l
14) Write the products
i) $22A2 H r L
ii) $A2 H r
8112019 Chemistry Question 12sci (1)
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iii)
iv)
v)
1$) (dentify the chiral and achiral molecules
i)
ii)
iii)
1) iscuss 2 mechanism of methyl romide using aCueous
FD ra energy prole diagram1+) Write the mechanism of the reaction hen tutyl chloride is
treated ith aCueous FD ith energy prole diagram
1) ierentiate eteen 1 and 2 mechanism
15) Explain the nature of ond in
i) 322 ii)
27) What are uses of
i) 0 ii) (odoform iii) hloroform iv) aron tetrachloride
21) l8yl halides are polar and miscile ith aterlt explain
22) Which one of the folloing is more easily hydrolysed y
aCueous FD
$l$ and $2l
23) rrange the folloing groups in descending order 2lt D3lt
D3lt DD and l
24) ssign or conguration to each of the folloing
structures
8112019 Chemistry Question 12sci (1)
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i)
ii)
iii)
iv)
DDlt -ED E0E
1) What are alcohols o are they classied
2) What are monohydric alcohols o are they classied
4) Write the structures of folloing alcohols
i) 1Ethylcyclohexanol ii) ex3en2ol iii)yclohex2en1ol
iv) -entane1lt4diol
v) 2lt4imethylhexane1lt3lt$triol
$) Explain the folloing
i) -ropan1ol has higher oiling point than nutane
ii) ampethanol is more solule in ater than -ropan1ol
) Write the mechanism of hydration of ethylene to ethyl alcohol
+) -ropan1ol can not e prepared y acid catalyst hydration of
propenelt then ho is propene converted into propan1ol
)5) o is propanone converted into
i) -ropan2ol ii) 2ampethyl propan2ol
17) o ill you otain utan2ol from
8112019 Chemistry Question 12sci (1)
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i) -ropanal ii) utan2one iii) ut2ene
11) o is propan1ol prepared from
i) -ropanal ii) -ropanoic acid
12) o is cyclopentanol prepared from
i) yclopentanone ii) yclopentene
14) Write the mechanism of acid catalysed dehydration of ethanol
to give ethane
1$) Write the structure of aldehyde lt caroxylic acid and ester
that yield folloing alcohol
1+) o ill you prepare
i) 2ampethylutane1ol from an al8ene
ii) cyclohexylmethanol from a Grignard reagent
iii) 1phenylethanol from acetaldehyde
1) o are folloing conversions rought aout
i) en=yl chloride to en=yl alcohol
ii) en=yl alcohol to en=oic acid
iii) 1Ethylcyclohexanol from yclohexanone
15) What are phenols o are they classied
27)21) Give the structures and (- names of isomeric phenols
represented y the molecular formula 17D
22) o is phenol prepared from
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i) hloroen=ene ii) (sopropyl en=ene iii) en=ene sulphonic
acid iv) aniline
23 ) Explain the folloing
i) -henol is more acidic than phenol
ii) onitrophenol is more acidic than ocresol
iii) pnitrophenol is less volatile than onitrophenol
24) Explain the folloing reactions of phenol
i) FoleBs reaction ii) iemer0iemann reaction
2$) ame the reagents used to convert phenol intoi) picric acid ii) 2lt4lt0riromophenol iii) en=ene iv) ophenol
sulphonic acid
2) What is the action of folloing reagents on phenol i)
romine in 2 at lo temperature
ii) ilute nitric acid at room temperature iii) oncentrated
sulphuric acid at room temperature
2+) Give distinguish test eteen phenol and ethanol
2) What are ethers o are ethers classied
25) What is metamerism Give the structure and (- name of
metamers of 2ampethoxypropane
37) Write the mechanism for acidic dehydration of ethanol
31) o is diethyl ether prepared y continuous ethericationprocess Why is the process so called
32) o ill you prepared methoxyethane from
i) l8yl halide ii) ia=omethane
33) tate the important uses of i) -henol ii) diethyl ether
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34) Write the mechanism of action of hydrogen romide on tert
utyl methyl ether
3$) Explain the folloing reactions of anisole
i) romination ii) itration iii) 6riedelrafts al8ylation iv)6riedelrafts acylation
3) Explainlt i) 0he OD group attached to aromatic ring in
phenols and ii) 0he al8oxy group in al8yl aryl ethers are ortholt
para directing and activate the aromatic ring toars electrophilic
sustitution
3+) Write the chemical eCuations for Williamson synthesis of 2
Ethoxy2methypentane starting from ethanol and 2ampethylpentan2ol
3) n organic compound ith the formula 417D3 shos
properties of ether and alcohol hen treated ith an excess of
r yields only one compound 1lt2 diromomethane Write
structural formula of ether and that of alcohol
ALDEHYDES ETONES AND CABO$YLIC
ACID
1) Write the structure and give (- names of the folloing
compounds
i) chloropropionaldehyde
ii) Rhydroxyutyraldehyde
iii) isoutyraldehyde
iv) Rmethylvaleraldehyde
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v) isopropyl methyl 8etone
vi) diisopropyl 8etone
vii) mromoen=aldehyde
viii) dien=yl 8etone
ix) divinyl 8etone
x) allyl methyl 8etone
xi) ethyl phenyl 8etone
xii) nutyrophenone
2) Write the structure of folloing compounds
i) 4ampethyl3nitroen=ophenone ii) 2ampethyl4oxopentanal iii)
3Dxopentanoic acid iv) 4chloropropiophenone v) 3
ampethoxyutanal vi) 4ydroxycyclohaxane caraldehyde
3) o ill you prepare i) propiophenone from propanenitrile ii)
4chloroen=aldehyde from 4chlorotoluene iii)
yclohaxanecaraldehyde from cyclohexylmethanol iv) 4
methoxyacetophenone from anisole v) 4methylen=aldehydefrom toluene
4) rrange the folloing compounds in the increasing order of
their oiling points
i) dimethyl etherlt ethyl alcohollt propanelt acetaldehyde
ii) acetonelt npropyl alcohollt ethyl methyl alcohol and nutane
$) What is the action of hydrogen cyanide in asic medium on i)utanone ii) 2lt4dichloroen=aldehyde
) What is the action of folloing compounds on cyclohexanone in
presence of dry hydrogen chloride
i) ethyl alcohol ii) ethylene glycol
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+) Write the structure of product in the folloing reactions
i) 322D3
ii) $2D3
) Write the structures of caronyl compounds and ammonia
derivatives that comine to give folloing imines
i)
ii)
iii)
iv)v)
vi)
5) Write the chemical eCuations for aldol condensation or
anni==aro reaction that folloing compounds undergo
i) -ropanal ii) 2ampethylpropanal iii) -entanal iv) 3
ampethylutanal v) cetophenonevi) pampethoxyen=aldehyde vii) 2ampethylcyclohaxanone viii)
chloral ix) yclopentanone
x) -henyl acetaldehyde xi) 1-henylpropan1one
17) Write the structure of the maKor product of the folloing
crossed aldol condensation
i) formaldehyde and propionaldehydeii) en=aldehyde ith acetone
11) (dentify the compounds SBlt SB and SB in the folloing
reactions and rerite the complete eCuations
i)
8112019 Chemistry Question 12sci (1)
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ii)
12)o ill you eect folloing tostep conversions
i) -ropanal into utanone ii) utanone into ut2ene iii)
en=ene into mromoacetophenone iv) ex3yne into exan
3one v) en=oic acid into mnitroen=ylalcohol
13) o ill you convert en=aldehyde into folloing compounds
ampore than one steps may e reCuired
i) en=ophenone ii) en=oic acid iii) 3-henylpropan1ol iv)hydroxyphenylacetic acid
14) Give a chemical test to distinguish eteen folloing pairs of
compounds
i) Ethanal and propanone ii) -rpopanal and propanone iii)
-entane2one and pentane3one
1$) Write the structure and (- names of folloing caroxylicacids
i) ltRdimethylutanoic acid ii) Rphenylutyric acid iii) 1038389
chloromethylvaleric acid
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14) Explain the pac8ing and voids in ionic solids
1$) Write note on radius ratio rule for ionic compounds
1) Explain ho to deduce coordination numer of cations
1+) What are point defects
1) Explain interstitial defect and impurity defect
15) Explain the origin of electrical properties in solids
27) What are semiconductors escrie the to main types of
semiconductors
21) Explain the origin of magnetic properties in solids22) Explain
() iamagnetism ii) -aramagnetism iii) ferromagnetism
23) lassify the folloing semiconductors into n or p type
i) doped ith i
ii) s doped ith i
iii) - doped ith i
iv) Ge doped ith (n
24) Explain and theory
2$) istinguish eteen conductorslt semiconductors and
insulators
2) Explain the termsi) chott8y defect iii) 6ren8el defect
PROBLEMS
8112019 Chemistry Question 12sci (1)
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() ioium is found to crystalli=es ith cc structure and found to
have density of $$ggtcm3 etermine the atomic radius of
nioium if its atomic mass is 532) opper crystalli=es into 6 structure and the unit cell has
length of edge 31 17 cm alculate the density of copper if
the molar mass of u is 3$ggtmol
3) ilver crystalli=es in 6 structure ith edge length of unit celllt
47+ 17 cm and if density of metallic silver is17$ggtcm3
alculate the molecular mass of silver
4) etermine the density of cesium chloride hich crystalli=es in type of structure ith the edge length 4121pm 0he atomic
masses of cesium and chloride are 133 and 3$$ respectively
$) nit cell of iron crystal has edge length of 2pm and density
of +ggtcm3etermine the type of crystal lattice 6eA$)
) n atom crystalli=es in 6 crystal lattice and a density of
17ggtcm3 ith unit cell edge length of 177pm alculate numer of
atoms present in 1g of crystal
+) n element and constitute type crystalline structure
Element occupies ody center position and is at the corners of
cue What is the formula of the compound What are the
coordination numers of and
) toms and form 6 crystalline structure tom is
present at the corners of the cue and atom is at the faces of
the cue What is the formula of the compound
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SOLUTION AND COLLIGATIVE PROPERTY
THEORY
1) ene the terms solutionlt solutelt solvent and concentration
2) What are the dierent types of solution
3) Explain dierent ays in hich concentration of a solution can
e expressed
4)ene i) percentage y eightlt ii) mole fractionlt iii) ampolalitylt iv)
ampolarity
$)ene the term colligative property Give examples
) tate and explain enryBs la
+) Explain solid solution
) What is a vapour pressure of liCuid
5) Explain the eect of temperature on the vapour pressure of
liCuid
17) What are the factors hich aects vapour pressure
11) What is loering of vapour pressure of a solution
12) What is relative loering of vapour pressure
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13) tate aoultBs la and otain expression for loering of
vapour pressure hen nonvolatile solute is dissolved
14) erive the relationship eteen relative loering of vapour
pressure and molar mass of solute1$) What is oiling point of liCuid
1) What is elevation of oiling point
1+) What is molal elevation constant oes it depend on the
nature of the solute
1) erive the relation eteen elevation of oiling point and
molar mass of the solute15) ene free=ing point of liCuid
27) What causes depression in free=ing point
21) ene molal depression constant
22) o molar mass of a nonvolatile solute is related to the
depression in free=ing point erive an eCuation
23) What is osmosis
24) ene semipermeale memrane and osmotic pressure
2$) ene the terms i) (sotonic solution ii) ypertonic solution
iii) ypotonic solution
2) tate i) vant ooyles la ii) vant oharles la
2+) erive vant o eCuation for osmotic pressure of a solution
2) o molar mass of a solute is determined from osmotic
pressure measurements
25) Explain anormal osmotic pressure
37) tate vant ovogadroBs la
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31) Explain
i) normal molecular masses
ii) vant o factor
32) erive the eCuations
i) A
ii) A
PROBLEMS
1) 342g of glucose is dissolved in 477g of ater alculate
percentage y mass of glucose solution
2) solution is prepared y dissolving certain amount of solute in
$77g of ater 0he percentage y mass of a solute in solution is
23 alculate mass of solute
3)4cm3 of methyl alcohol is dissolved in 2$2g of ater
alculatelt i) percentage y mass of methyl alcohol ii) ampole
fraction of methyl alcohol and ater Given density of methyl
alcohol A 7+5$2ggtcm3 and A12lt A1 and DA1)
4) 12cm3 of en=ene is dissolved in 1cm3 of xylene alculate
y volume of en=ene
$) alculate mole fraction of l in solution of l containing
24 of l y massA1lt lA3$$)
) alculate mole fraction of solute in its 2 molal aCueous
solution
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+) alculate the mole fractionlt molality and molarity of D3 in a
solution containing 122 D3 Given density of
D3A173ggtcm3lt A1lt A14lt DA1
) ulphuric acid is 5$ y mass alculate mole fraction andmolarity of 2D4 of density 151ggtcm3
5) Cueous solution of aD is mar8ed 17gt) 0he density of
the solution is 17+7ggtcm3
alculatelt
i) molarity ii) molality and iii) mole fraction of aD and ater
aA23lt A1 and DA1
17) attery acid is 422amp aCueous 2D4 solutionlt and has density
of 121ggtcm3 What is the molality of 2D4 A1lt A32lt DA1
11) 0he vapour pressure of 21 solution of a nonelectrolyte in
ater at 177 is +$$mm g alculate the molar mass of the
solute
12) 0he vapour pressure of ater at 27 is 1+mm g alculate
the vapour pressure of a solution containing 2g of
urea2D2) in $7g of ater A14lt A12lt A1
13) (n an experimentlt 174g of mannitol ere dissolved in 177g
of ater 0he vapour pressure of ater as loered y 7375mm
g from 1+$3$mm g alculate the molar mass of mannitol
14) solution containing 7$12g of naphthalene molar mass A
121+ggtmol) in $7g of l4 gives a oiling point elevation of
7472F While a solution of 721g of un8non solute in the
same mass of the solvent gives a oiling point elevation of 74+F
6ind the molar mass of the un8non solute
F for l4A $73F 8g mol1 of solvent)
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1$) alculate the mass in grams of an impurity of molar mass
177gmol1 hich ould e reCuired to raise the oiling point of
$7g of chloroform y737F
F for chloroformA 33F 8g mol
1
)1) oiling point of a solvent is 72 When 7415g of the solute
of molar mass 2$24g mol1 as dissolved in +$g of the solventlt
the oiling point of the solution as found to e 72$ 6ind
the molal elevation constant
1+) 7ml of glacial acetic acid ith density 17gm 1 is
dissolved in 18g ater and the solution fro=e at 7727$
alculate vant o factor and F f for ater is1F 8g mol1
1) enryBs la constant for soluility of methane in en=ene is
42+ 17$mm g at constant temperature alculate the
soluility of methane at +7mm g pressure at same
temperature
CHEMICAL THERMODYNAMICS AND ENERGIES
Theory
1)ene the terms systemlt surroundinglt open systemlt close
systemlt isolated systemlt exothermic reactionslt endothermic
reactionslt extensive properties and intensive properties
2) Explain the term state function Give to examples of state
functions and to example of path function
3) Explain thermodynamics eCuilirium
4) istinguish eteen isothermal and adiaatic process
$) What is a reversile process What are its features
) ho that pressure times volume is eCual to or8
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+) erive the expression for or8 hen a gas expands against
constant external pressure
) lassify the folloing reactions according to or8 done y the
systemlt on the system and no or8 done if pressure is constanta) 2g) H l2g) 2lg)
) 3D2g) 2D3g)
c) 2D2g) D2g)H 2D3g)
d) ampgD3s) H ampgDs) D2g)
e) 4D3s) H 2Dg) 22Dg)
5) What is the dierence dierence eteen and What is
the sign of for exothermic and endothermic reactions nder
hat circumstances
17) What are the sign convention for C and W
11) Explain the concept of maximum or8
12) free expansion of a gas results into no or8 Explain
13) erive the expression for maximum or8
14) ene enthalpy t constant pressure sho that A
1$) (t is di9cult to calculate lt hoever can e easily
determined Why Explain giving examples
1) tate rst la of thermodynamics Iustify its mathematical
eCuation
1+) Dtain the relationship eteen and for a chemical
reaction
1) What is the expression for or8 done in a chemical reaction
Explain the meaning of each term
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a) dissolution of sugar in hot coee
) separation of r and Fr from their mixture
c) spreading of fragrance hen a ottle of perfume is opened
d) Jo of heat from cold oKect to hot oKect
e) heat transfer from ice to room at 2$
37) ene entropy Give its units What does entropy measures
31)Explain ho entropy changes in the folloing processes
a) free=ing of liCuid
) sulimation of solid
c) dissolving of ater in sugar
d) condensation of vapour
32) Which memer of the folloing pairs have larger entropy
Why
a) D2s) or D2g)
) 3Dl) or 2$D2$l)
c) Dg) or 2D4g)
d) eg) or Frg)
e) as) or als)
33) Why is it more convenience to predict spontaneity of reaction
in terms of Gsys rather than total34) ene Gis energy and change in Gis energy What are
the units of Gis energy
3$) tate second la of thermodynamics in terms of entropy and
express it mathematically
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3) tate third la of thermodynamics What is its usefulness
3+) Why is it impossile for any sustance to have an asolute
entropy =ero at temperature greater than 7F
3) (t is impossile for a reaction to e spontaneous yetexothermic Explain ith example
35) (s it possile for a reaction to e nonspontaneous yet
exothermic Explain ith example
47) -redict the sign of in the folloing process Give reasons
for your anser
a) 2D4g) 2D2g)) 6e2D3s) H 32g) 26es) H 32Dg)
c) 2g) H 32g) 23g)
d) ampgD3s) 23g)
e) D2g) D2s)
f) l2g) 2lg)
41) What can e said aout the spontaneity of reactions hen
a) and are oth positive
) and oth are negative
c) is positive and is negative
d) is negative and is positive
42) (dentify hich memer of the folloing pairs has largerentropy Why
a) eg) in a volume of 1 or eg) in a volume of $ oth at 2$
) D2g) at 1atm or D2g) at 17atm oth at the same temperature
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c) 2$Dl) or 2$Dg)
d) $ moles of e or 2 moles of e
43) What are the signs of for the folloing reaction
Explain ith reasons
2g) 2g)
44) erive the relationship eteen G and total
4$) Iustify the inclusion of Crev and 0 in the denition of entropylt
A Crevgt 0
4) 0he increase in entropy of a system alone does not guarantee
the spontaneity of a process Explain
4+) 0he criterion of spontaneity in terms of Gis energy is the
same as that laid don y second la of thermodynamic o
PROBLEMS
1) 0hree moles of an ideal gas are expanded isothermally from a
volume of 377cm3 to 2$ at 377F against a pressure of 15atm
alculate the or8 done in atm and Koules2) Dne mole of an ideal gas is compressed from $77cm3 against a
constant pressure of 121 17$-a 0he or8 involved in the
process is 3$7I alculate the nal volume
3) alculate the maximum or8 hen 24g of oxygen are
expanded isothermally and reversily from a pressure of 1
17$-a to 1778-a at 25F
4) 0hree moles of an ideal gas are compressed isothermally andreversily to a volume of 2 0he or8 done is 2538I at 22
alculate the initial volume of a gas
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$) 2 172 8g of nitrogen is expanded isothermally and
reversily at 377F from 1$1$ 17$ m 2 hen the or8 done is
found to e 1+338 I 6ind the nal pressure
) sample of a gas asors 47778I of heata) if volume remains constantlt hat is
) uppose that in addition to asorption of heat y the samplelt
the surrounding does 27778I of or8 on the samplelt hat is
c) uppose that as the original sample asors heatlt it expands
against atmospheric pressure and does 778 I of or8 on its
surroundings What is
+) alculate the or8 done in each of the folloing reactions
tate hether or8 is done on or y the system
a) 0he oxidation of one mole of D2 at $7
2D2g) H D2g) 2D3g)
) decomposition of 2 moles of 4D3 at 177
4D3s) 2Dg) H 22Dg)
) 0he enthalpy change for the reaction
24g) H 2g) 2g) is 27I hen 177m of ethylene and
177m of 2 react at 1atm pressure alculate the pressure
volume or8 and
5) alculate standard enthalpy of the reaction
6e2D3s) H 3Dg) 26es) H 3D2g) from the folloing data
f 76e2D3)A2428Imol1ltf 7D)A117$8Imol1lt
f 7D2)A353$8Imol1
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8112019 Chemistry Question 12sci (1)
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Electro chemitry
Theory
1ene the terms resistivitylt conductivity and molar
conductivity Give its ( units
2Explain the terms conductivity and molar conductivity o are
they interrelated
3Why does conductivity of s solution decrease on dilution of a
solution
4o does molar conductivity of an electrolyte vary ith
concentration
$o does the variation in molar conductivity of an electrolyte
ith concentration diers for strong and ea8 electrolytes
Explain the dierent ehaviour of strong and ea8 electrolytes
toards the variation of conductivity ith concentration
+tate and explain Fohlrausch la of independent migration of
ions o it is useful to determine the molar conductivity of ea8
electrolytes at =ero concentration
o is the molar conductivity of strong electrolytes at =ero
concentration determined y graphical method Why is this
method not useful for ea8 electrolytes
5What is cell constant What is its unit o is it determined
17ene anode and cathode
11 Why is cathode in electrolytic cell considered to e negative
and anode positive
12 -redict the half cell reactions that occur hen fused Fl is
electroly=ed in a cell ith inert electrodes What is the overall cell
reaction
8112019 Chemistry Question 12sci (1)
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13 tate 6aradayBs las of electrolysis
14o ill you calculate the numer of moles of electrons
actually passed and mass of the sustance produced during
electrolysis of a salt solution using reaction stoichiometry1$o many electrons ill have a total charge of 1 coulom
1 o many faradayBs ould e reCuired to plate out 177 mole
of free metal from the folloing cations
a) ampg2H
) r3H
c) -2H
d) uH
1+ ene coulom and faraday
1 escrie the electrolysis of molten al using inert
electrodes
15 What is the dierence eteen electrolytic cell and voltaic
cell
27 Why is anode in galvanic cell considered to e negative and
cathode positive electrode
21 8etch the cell for the electrolysis of molten al (ndicate
cathodelt anode and their signs ho the Jo of electrons and
ions
22 What is salt ridge What are its functions in galvanic cell
23 What are the conventions used to rite cell diagramcell
formula)
24 escrie the construction of aniel cell Write electrode half
reactions and net cell reaction in aniel cell
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2$ escrie the folloing types of electrodes giving one
examplelt ith reference to formulationlt electrode reaction and
ernst eCuation for electrode potential
a) metalsparingly salt electrode) gas electrode
2 What is redox electrode Give one example ith formulationlt
electrode reaction and ernst eCuation for electrode potential
2+ ene the terms oxidation potentiallt reduction potential and
cell potential
2 What conditions are reCuired for a cell potential to e calledstandard cell potential
25 6ormulate a cell for each of the folloing electrode reactions
a) n2H aC) H 2gl s) L n4H aC) H 2gs) H2l aC)
) ampg s) H r2l) L ampg2H aC) H 2r aC)
37 6ormulate a cell from the folloing electrode reactions
a) l2g) H 2e L 2l aC)
) 2( aC) L (2s) H 2e
31 What are standard electrode potential and standard emf of
the galvanic cell
32 Write ernst eCuation and explain the terms involved in it
What part of the eCuation represents the correction factor for
nonstandard state conditions
33 Write ernst eCuation for the folloing reactions
a) rs) H 36e3H aC) L r3H aC) H 36e2H aC)
) l3H aC) H 3e L l s)
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34 onsider the folloing E7 values and half reactions
(2s) H 2e L 2( aC) E7A7$3$M
u2H aC) H 2e L u s) E7A733+M
d2H aC) H 2e L ds) E7A77473
a) Which of the metals or nonmetals or ions is the strongest
oxidi=ing agent and hich is the strongest reducing agent
) 0he half reactions can e used to construct three galvanic
cells Which ill have the highest cell potential
3$ -redict hether
a) gH can oxidi=e - to -2H under standard state condition
) E7gA7+55M and E7
-A712M
3 -redict hether the folloing reactions occur under standard
state conditions
a) Dxidation of gs) y l2g) E7gA7Mlt E7
l2A13M
) eduction of 6e
3H
to 6e
2H
y us) E
7
6e3Hlt 6e2H A 7++MltE7uA14M
3+ 8etch and descrie the operation of
a) dry cell
) 2D2 fuel cell
3 What are the advantages and disadvantages of fuel cells
35 8etch lead storage cell
47 Write electrode reaction and overall cell reaction during the
operation of lead storage cell
41 Write electrode reaction and overall cell reaction hen lead
accumulator ehaves as an electrolytic cell
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42 o can ernst eCuation e used to sho that electrode
potential is eCual to the standard electrode potential y putting
approximate values in ernst eCuation se u2HNd half cell for
illustration
43 o are G7lt E7cell and eCuilirium constant related for a
particular reaction
44 Why is eCuilirium constant related to E7cell and not Ecell
4$ G7 for a redox reaction depends on the numer of electrons
transferred Explain
4 o does the eCuiliriumlt G7An6E7 explain that an
electrical potential is an intensive property
4+ Write shorthand notation for the cell for each of the folloing
reactions
a) u2H aC) H 2gs) H 2r L u s) H 2gr s)
) n2H aC) is oxidi=ed y r2 l)
4 rrange the folloing reducing agents in order of increasing
strength under standard state conditions 0he standard potentialsfor the reduction half reactions are given
gH aC) 7M)lt l3H aC) 1M)lt 62g) 2+M)lt l2g) 13M)lt
(2s) 7$4M)lt d2H aC) 74M)
45 rrange the folloing oxidi=ing agents in order of increasing
strength under standard state conditions 0he standard potentials
for the reduction half reactions are given
ls) 1M)lt l aC) 13M)lt us) 734M)lt 6es)744M)lt r
aC) 175M)lt is) 72M)
$7 Which species in each of the folloing pairs is etter oxidi=ing
agent under standard state conditions standard potential are
given) Give reasons for your anser
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a) r2l) 175M) or u3H 14M)
) H aC) or gH aC) 7M)
c) -2H aC) 713M) or o2H 72M)
d) l2 g) 13M) or r3H 7+4M)
$1 Which species in each of the folloing pairs is etter reducing
agent under standard conditions E7 values are given Give
reasons for your anser
a) Fs) 2353M) or ampgs) 23M)
) o2H aC) 11M) or (n s) 714M)
c) e3H aC) 11M) or 0i2H73+M)
d) gl) 7M) or is) 723M)
PROBLEMS
1 conductivity cell lled ith 771amp Fl given at 2$o the
resistance of 74ohms 0he conductivity of Fl at 2$
o
is 7777
CHEMISTRY
d f O DF EEampE0
1) What are dloc8 elements
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2) What are floc8 elements
3) Explain the meaning of
i) 0ransition series ii) (nner transition element
4) Explain the position of the folloing in periodic tale
i) dloc8 elements ii) anthanoids iii) ctinoids
$) Explain the oxidation state of 1st ro elements of transition
series
) Explain the oxidation states of lanthanoids and actinoids
+) Why do lanthanoids form coloured compounds ) Explainlt most of the transition metal compounds are
remar8aly coloured
5) Why chromium has electronic conguration 3d$ 4s1 and not 3d4
4s2
17) Why does copper sho anormal electronic conguration
11) Explainlt the trends in atomic and ionic si=es of lanthanoidsand also of 1st ro elements of transition series
12) What are actinoids
13) What are transuranic elements Write their name
14) Why transition elements sho tendency to form large numer
of complexes
1$) Explain the compounds of copper ((() are coloured ut thoseof =inc are colourless
1) o is potassium dichromate prepared from chrome ion
1+) Write the preparationlt properties and use of potassium
permanganate
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1) Explainlt hy -t(M) complexes are generally octahedral hile
-t(() complexes are sCuare planar
15) ierentiate eteen lanthanoids and actinoids
27) What are chemical tins Give examples
21) Explain hy Gd3H is colourless
COORDINATION COMPOUNDS
1) What is the dierence eteen doule salt and coordinationcompounds
2) Explainlt hy 6e4)2 D4)22D) is a salt ut F 4P6e)Q is a
complex compound
3) Write the formula of the folloing complexes
i) alcium hexa cyano ferrate (()
ii) iammine dichloro platinum
iii) is ethylene diammine) dichloro iridium ((() ion
iv) -entamine caronato chromium ((() D(E
v) 0risethylene diammine ) coalt((() sulphate
vi) iamine ethylene diammine nic8el (() acetate
4) Write the rules hich are applied hile riting the formulas of
coordination compounds
$) ene the terms
i) entral metal atomgtion
ii) igand
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iii) oordination compound
iv) oordination sphere
v) oordination numer
vi) oordination polyhedral
vii) omoleptic and heteroleptic complexes
viii) harge on the complexes
ix) oordination entity
) Write (- name of the folloing complexes
i) Pr2D)4 l2QD3
ii) P-ten)l4Q
iii) F 2Pi)4Q
iv) sP6el4Q
v) rl3-y)3
vi) F 3Po2D4)3Q
vii) Por2en)2Q
viii) P-tl4Q2
ix) Po2D))en)2Q2H
x) F 3Pl2D4)3Q
+) Explain the importance of principles of additive nomenclature
) (dentify the folloing ions y a simple test forming complex
compound
i) u2H ii) i2H iii) 6e3H iv) o2H
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5) Dn the asis of WernerBs theory explainlt hy coalt amine
complexlt ol343 hen treated ith gD3 solution
precipitates only one ion even though there are three ions
17) alculate the eective atomic numer E) of the centralmetal atom in the folloing compounds
i) F 3P6e)Q ii) rD)
11) Write the postulates of WernerBs theory
12) Explain the onding in ol333 and ol3$3
13) Explain stereoisomerism in metal complexes ith coordination
numer 4 and 14) Why the tetrahedral complexes do not exhiit geometrical
isomerism
1$) ra cis and trans geometrical isomers of
i) dichlororomo iodo palladium (() ion
ii) P-t(()3)2l2Q
iii) Po((()3)l3Q
iv) Po((()3)42D)lQ2H
1) ra all possile geometrical isomers of P-t(M)
3)2-y)2l2Q2H ion
1+) Write oxidation statelt coordination numer and electronic
conguration of the metal atom in the folloing complexes
i) rl3-y)3 ii) F 4Pampn)Q
1) lassify the folloing ligands into monodentatelt polydentate
and amidentate
i) 3 ii) iii) iv) v) D2 vi) ethylene diammine
vii) oxalate
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viii) triaminotriethylamine
15) ol3$32D is a pin8 solidlt the solution of this salt is also
pin8 and formed 3mol of gl ith silver nitrate solution Dn
heating pin8 solidlt it loses one ater molecule and forms purplesolid having same ratio of o3l as that of pin8 solid 0he
purple solid hen dissolved in ater and treated ith forms 1 mol
of gl ra the structure and name of the pin8 and purple
solids
27) ame the octahedral complex ions
i) Po2D4) en)2QH ii) transPr)4 3)2Q
21) ra the structures of the folloing complexes
i) Pol4Q2 ii) Pampn3)Q2H iii) P-tlQ iv) iD)4 v) Pi)4Q2
22) (n an octahedral crystal eldlt dra the gure to sho splitting
of dorital
23) What are ea8 eld and strong eld ligands What is spectro
chemical series
24) Pi)4Q2 is diamagnetic hile Pr3)Q3H is paramagnetltexplain
2$) Dn the asis of valence ond theory explain the nature of
onding in the folloing complexes
i) Po6Q3 ii) Po2D4)3Q3
2) lue coloured copper sulphate solution gave folloing
experimental results Explain the same
i) With aCueous potassium chloride it gave right green solution
ii) With aCueous potassium Juoride it gave a green precipitate
2+) ra the structures of optically active isomers of Poen)3Q3H
8112019 Chemistry Question 12sci (1)
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2) ra the geometrical and optical isomers of
i) Pol2en)2QH ii) Polen)23)Q2H
25) What is lin8age isomerism Explain ith an example
37) What are hydrate isomers Explain ith examples
31) Explain the structure of
i) upraammonium sulphate ii) Po3)Q3H
32) What are the limitations of valence ond theory
33) Explain the magnetic properties of coordination compounds
34) Write the salient features of crystal eld theory What are itslimitations
3$) Explain the octahedral geometry of complexes using crystal
eld theory
3) Write a note on colours in coordination compounds
3+) Explain the factors aecting the staility of coordination
compound3) Write rief the applications of coordination compounds
HALOGEN DERIVATIVES O ALANES AND ARENES
1) What are al8yl halides o are they classied
2) Write (- names of the folloing compounds
i)
ii) 2Al
8112019 Chemistry Question 12sci (1)
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iii)
iv)
v)
vi) secutyl chloride
vii) neopentyl romide
viii) tutyl iodide
ix) isopropyl romide
3) o is ethyl romide prepared from
i) Ethyl alcohol ii) ethane iii) ethane
4)Write the preparation of isopropyl chloride using the folloing
reagents
i) -l3 ii) -l$ iii) l2 iv) l v) Dl2
$) o is group replaced y folloing functional rroups
i) OD ii) O iii) O iv) O2
) Write a note on
i) andmeyerBs reaction ii) Wurt= reaction iii) 6in8elstein reaction
iv) 6ittig reaction v) 6riedel raft reaction
+) (dentify and in the folloing
8112019 Chemistry Question 12sci (1)
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) Give the structures of the folloing compounds
i) 3romo2methyl pentane ii) 2romo3ethyl hexane iii) 1
holo utane
iv) pichloroen=ene v) 1lt1lt10richloroethane
5) student has performed an experiment in the laoratory e
mixed ater ith hexane and found to layers separated econd
time he mixed chloroform ith ater and he again found to
layers in the test tue Explain hich ill e upper layer and
hich one ill e loer layer in oth the experiments
17) onvert 1hloroutane into the folloing compounds
i) utane1ol ii) 1(odoutane iii) 3222 iv)
11) 6or each pair of compoundslt state hich compound is etter
2 sustrate
i) 2romoutanelt isopropyl romide ii) 1(odo2lt2dimethyl
propane or isopropyl iodide
12) hoose the memer that ill react faster from the folloing
pairs y 1 mechanism
13) -redict the expected product of sustitution reaction
i) isoutyl chloride mH sodium ethoxide
ii) nutyl chloride H sodium
iii) 1hloro propane H aC potassium hydroxide
iv) aniline H aD2gt l
14) Write the products
i) $22A2 H r L
ii) $A2 H r
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iii)
iv)
v)
1$) (dentify the chiral and achiral molecules
i)
ii)
iii)
1) iscuss 2 mechanism of methyl romide using aCueous
FD ra energy prole diagram1+) Write the mechanism of the reaction hen tutyl chloride is
treated ith aCueous FD ith energy prole diagram
1) ierentiate eteen 1 and 2 mechanism
15) Explain the nature of ond in
i) 322 ii)
27) What are uses of
i) 0 ii) (odoform iii) hloroform iv) aron tetrachloride
21) l8yl halides are polar and miscile ith aterlt explain
22) Which one of the folloing is more easily hydrolysed y
aCueous FD
$l$ and $2l
23) rrange the folloing groups in descending order 2lt D3lt
D3lt DD and l
24) ssign or conguration to each of the folloing
structures
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i)
ii)
iii)
iv)
DDlt -ED E0E
1) What are alcohols o are they classied
2) What are monohydric alcohols o are they classied
4) Write the structures of folloing alcohols
i) 1Ethylcyclohexanol ii) ex3en2ol iii)yclohex2en1ol
iv) -entane1lt4diol
v) 2lt4imethylhexane1lt3lt$triol
$) Explain the folloing
i) -ropan1ol has higher oiling point than nutane
ii) ampethanol is more solule in ater than -ropan1ol
) Write the mechanism of hydration of ethylene to ethyl alcohol
+) -ropan1ol can not e prepared y acid catalyst hydration of
propenelt then ho is propene converted into propan1ol
)5) o is propanone converted into
i) -ropan2ol ii) 2ampethyl propan2ol
17) o ill you otain utan2ol from
8112019 Chemistry Question 12sci (1)
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i) -ropanal ii) utan2one iii) ut2ene
11) o is propan1ol prepared from
i) -ropanal ii) -ropanoic acid
12) o is cyclopentanol prepared from
i) yclopentanone ii) yclopentene
14) Write the mechanism of acid catalysed dehydration of ethanol
to give ethane
1$) Write the structure of aldehyde lt caroxylic acid and ester
that yield folloing alcohol
1+) o ill you prepare
i) 2ampethylutane1ol from an al8ene
ii) cyclohexylmethanol from a Grignard reagent
iii) 1phenylethanol from acetaldehyde
1) o are folloing conversions rought aout
i) en=yl chloride to en=yl alcohol
ii) en=yl alcohol to en=oic acid
iii) 1Ethylcyclohexanol from yclohexanone
15) What are phenols o are they classied
27)21) Give the structures and (- names of isomeric phenols
represented y the molecular formula 17D
22) o is phenol prepared from
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i) hloroen=ene ii) (sopropyl en=ene iii) en=ene sulphonic
acid iv) aniline
23 ) Explain the folloing
i) -henol is more acidic than phenol
ii) onitrophenol is more acidic than ocresol
iii) pnitrophenol is less volatile than onitrophenol
24) Explain the folloing reactions of phenol
i) FoleBs reaction ii) iemer0iemann reaction
2$) ame the reagents used to convert phenol intoi) picric acid ii) 2lt4lt0riromophenol iii) en=ene iv) ophenol
sulphonic acid
2) What is the action of folloing reagents on phenol i)
romine in 2 at lo temperature
ii) ilute nitric acid at room temperature iii) oncentrated
sulphuric acid at room temperature
2+) Give distinguish test eteen phenol and ethanol
2) What are ethers o are ethers classied
25) What is metamerism Give the structure and (- name of
metamers of 2ampethoxypropane
37) Write the mechanism for acidic dehydration of ethanol
31) o is diethyl ether prepared y continuous ethericationprocess Why is the process so called
32) o ill you prepared methoxyethane from
i) l8yl halide ii) ia=omethane
33) tate the important uses of i) -henol ii) diethyl ether
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34) Write the mechanism of action of hydrogen romide on tert
utyl methyl ether
3$) Explain the folloing reactions of anisole
i) romination ii) itration iii) 6riedelrafts al8ylation iv)6riedelrafts acylation
3) Explainlt i) 0he OD group attached to aromatic ring in
phenols and ii) 0he al8oxy group in al8yl aryl ethers are ortholt
para directing and activate the aromatic ring toars electrophilic
sustitution
3+) Write the chemical eCuations for Williamson synthesis of 2
Ethoxy2methypentane starting from ethanol and 2ampethylpentan2ol
3) n organic compound ith the formula 417D3 shos
properties of ether and alcohol hen treated ith an excess of
r yields only one compound 1lt2 diromomethane Write
structural formula of ether and that of alcohol
ALDEHYDES ETONES AND CABO$YLIC
ACID
1) Write the structure and give (- names of the folloing
compounds
i) chloropropionaldehyde
ii) Rhydroxyutyraldehyde
iii) isoutyraldehyde
iv) Rmethylvaleraldehyde
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v) isopropyl methyl 8etone
vi) diisopropyl 8etone
vii) mromoen=aldehyde
viii) dien=yl 8etone
ix) divinyl 8etone
x) allyl methyl 8etone
xi) ethyl phenyl 8etone
xii) nutyrophenone
2) Write the structure of folloing compounds
i) 4ampethyl3nitroen=ophenone ii) 2ampethyl4oxopentanal iii)
3Dxopentanoic acid iv) 4chloropropiophenone v) 3
ampethoxyutanal vi) 4ydroxycyclohaxane caraldehyde
3) o ill you prepare i) propiophenone from propanenitrile ii)
4chloroen=aldehyde from 4chlorotoluene iii)
yclohaxanecaraldehyde from cyclohexylmethanol iv) 4
methoxyacetophenone from anisole v) 4methylen=aldehydefrom toluene
4) rrange the folloing compounds in the increasing order of
their oiling points
i) dimethyl etherlt ethyl alcohollt propanelt acetaldehyde
ii) acetonelt npropyl alcohollt ethyl methyl alcohol and nutane
$) What is the action of hydrogen cyanide in asic medium on i)utanone ii) 2lt4dichloroen=aldehyde
) What is the action of folloing compounds on cyclohexanone in
presence of dry hydrogen chloride
i) ethyl alcohol ii) ethylene glycol
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+) Write the structure of product in the folloing reactions
i) 322D3
ii) $2D3
) Write the structures of caronyl compounds and ammonia
derivatives that comine to give folloing imines
i)
ii)
iii)
iv)v)
vi)
5) Write the chemical eCuations for aldol condensation or
anni==aro reaction that folloing compounds undergo
i) -ropanal ii) 2ampethylpropanal iii) -entanal iv) 3
ampethylutanal v) cetophenonevi) pampethoxyen=aldehyde vii) 2ampethylcyclohaxanone viii)
chloral ix) yclopentanone
x) -henyl acetaldehyde xi) 1-henylpropan1one
17) Write the structure of the maKor product of the folloing
crossed aldol condensation
i) formaldehyde and propionaldehydeii) en=aldehyde ith acetone
11) (dentify the compounds SBlt SB and SB in the folloing
reactions and rerite the complete eCuations
i)
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ii)
12)o ill you eect folloing tostep conversions
i) -ropanal into utanone ii) utanone into ut2ene iii)
en=ene into mromoacetophenone iv) ex3yne into exan
3one v) en=oic acid into mnitroen=ylalcohol
13) o ill you convert en=aldehyde into folloing compounds
ampore than one steps may e reCuired
i) en=ophenone ii) en=oic acid iii) 3-henylpropan1ol iv)hydroxyphenylacetic acid
14) Give a chemical test to distinguish eteen folloing pairs of
compounds
i) Ethanal and propanone ii) -rpopanal and propanone iii)
-entane2one and pentane3one
1$) Write the structure and (- names of folloing caroxylicacids
i) ltRdimethylutanoic acid ii) Rphenylutyric acid iii) 1038389
chloromethylvaleric acid
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() ioium is found to crystalli=es ith cc structure and found to
have density of $$ggtcm3 etermine the atomic radius of
nioium if its atomic mass is 532) opper crystalli=es into 6 structure and the unit cell has
length of edge 31 17 cm alculate the density of copper if
the molar mass of u is 3$ggtmol
3) ilver crystalli=es in 6 structure ith edge length of unit celllt
47+ 17 cm and if density of metallic silver is17$ggtcm3
alculate the molecular mass of silver
4) etermine the density of cesium chloride hich crystalli=es in type of structure ith the edge length 4121pm 0he atomic
masses of cesium and chloride are 133 and 3$$ respectively
$) nit cell of iron crystal has edge length of 2pm and density
of +ggtcm3etermine the type of crystal lattice 6eA$)
) n atom crystalli=es in 6 crystal lattice and a density of
17ggtcm3 ith unit cell edge length of 177pm alculate numer of
atoms present in 1g of crystal
+) n element and constitute type crystalline structure
Element occupies ody center position and is at the corners of
cue What is the formula of the compound What are the
coordination numers of and
) toms and form 6 crystalline structure tom is
present at the corners of the cue and atom is at the faces of
the cue What is the formula of the compound
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SOLUTION AND COLLIGATIVE PROPERTY
THEORY
1) ene the terms solutionlt solutelt solvent and concentration
2) What are the dierent types of solution
3) Explain dierent ays in hich concentration of a solution can
e expressed
4)ene i) percentage y eightlt ii) mole fractionlt iii) ampolalitylt iv)
ampolarity
$)ene the term colligative property Give examples
) tate and explain enryBs la
+) Explain solid solution
) What is a vapour pressure of liCuid
5) Explain the eect of temperature on the vapour pressure of
liCuid
17) What are the factors hich aects vapour pressure
11) What is loering of vapour pressure of a solution
12) What is relative loering of vapour pressure
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13) tate aoultBs la and otain expression for loering of
vapour pressure hen nonvolatile solute is dissolved
14) erive the relationship eteen relative loering of vapour
pressure and molar mass of solute1$) What is oiling point of liCuid
1) What is elevation of oiling point
1+) What is molal elevation constant oes it depend on the
nature of the solute
1) erive the relation eteen elevation of oiling point and
molar mass of the solute15) ene free=ing point of liCuid
27) What causes depression in free=ing point
21) ene molal depression constant
22) o molar mass of a nonvolatile solute is related to the
depression in free=ing point erive an eCuation
23) What is osmosis
24) ene semipermeale memrane and osmotic pressure
2$) ene the terms i) (sotonic solution ii) ypertonic solution
iii) ypotonic solution
2) tate i) vant ooyles la ii) vant oharles la
2+) erive vant o eCuation for osmotic pressure of a solution
2) o molar mass of a solute is determined from osmotic
pressure measurements
25) Explain anormal osmotic pressure
37) tate vant ovogadroBs la
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31) Explain
i) normal molecular masses
ii) vant o factor
32) erive the eCuations
i) A
ii) A
PROBLEMS
1) 342g of glucose is dissolved in 477g of ater alculate
percentage y mass of glucose solution
2) solution is prepared y dissolving certain amount of solute in
$77g of ater 0he percentage y mass of a solute in solution is
23 alculate mass of solute
3)4cm3 of methyl alcohol is dissolved in 2$2g of ater
alculatelt i) percentage y mass of methyl alcohol ii) ampole
fraction of methyl alcohol and ater Given density of methyl
alcohol A 7+5$2ggtcm3 and A12lt A1 and DA1)
4) 12cm3 of en=ene is dissolved in 1cm3 of xylene alculate
y volume of en=ene
$) alculate mole fraction of l in solution of l containing
24 of l y massA1lt lA3$$)
) alculate mole fraction of solute in its 2 molal aCueous
solution
8112019 Chemistry Question 12sci (1)
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+) alculate the mole fractionlt molality and molarity of D3 in a
solution containing 122 D3 Given density of
D3A173ggtcm3lt A1lt A14lt DA1
) ulphuric acid is 5$ y mass alculate mole fraction andmolarity of 2D4 of density 151ggtcm3
5) Cueous solution of aD is mar8ed 17gt) 0he density of
the solution is 17+7ggtcm3
alculatelt
i) molarity ii) molality and iii) mole fraction of aD and ater
aA23lt A1 and DA1
17) attery acid is 422amp aCueous 2D4 solutionlt and has density
of 121ggtcm3 What is the molality of 2D4 A1lt A32lt DA1
11) 0he vapour pressure of 21 solution of a nonelectrolyte in
ater at 177 is +$$mm g alculate the molar mass of the
solute
12) 0he vapour pressure of ater at 27 is 1+mm g alculate
the vapour pressure of a solution containing 2g of
urea2D2) in $7g of ater A14lt A12lt A1
13) (n an experimentlt 174g of mannitol ere dissolved in 177g
of ater 0he vapour pressure of ater as loered y 7375mm
g from 1+$3$mm g alculate the molar mass of mannitol
14) solution containing 7$12g of naphthalene molar mass A
121+ggtmol) in $7g of l4 gives a oiling point elevation of
7472F While a solution of 721g of un8non solute in the
same mass of the solvent gives a oiling point elevation of 74+F
6ind the molar mass of the un8non solute
F for l4A $73F 8g mol1 of solvent)
8112019 Chemistry Question 12sci (1)
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1$) alculate the mass in grams of an impurity of molar mass
177gmol1 hich ould e reCuired to raise the oiling point of
$7g of chloroform y737F
F for chloroformA 33F 8g mol
1
)1) oiling point of a solvent is 72 When 7415g of the solute
of molar mass 2$24g mol1 as dissolved in +$g of the solventlt
the oiling point of the solution as found to e 72$ 6ind
the molal elevation constant
1+) 7ml of glacial acetic acid ith density 17gm 1 is
dissolved in 18g ater and the solution fro=e at 7727$
alculate vant o factor and F f for ater is1F 8g mol1
1) enryBs la constant for soluility of methane in en=ene is
42+ 17$mm g at constant temperature alculate the
soluility of methane at +7mm g pressure at same
temperature
CHEMICAL THERMODYNAMICS AND ENERGIES
Theory
1)ene the terms systemlt surroundinglt open systemlt close
systemlt isolated systemlt exothermic reactionslt endothermic
reactionslt extensive properties and intensive properties
2) Explain the term state function Give to examples of state
functions and to example of path function
3) Explain thermodynamics eCuilirium
4) istinguish eteen isothermal and adiaatic process
$) What is a reversile process What are its features
) ho that pressure times volume is eCual to or8
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+) erive the expression for or8 hen a gas expands against
constant external pressure
) lassify the folloing reactions according to or8 done y the
systemlt on the system and no or8 done if pressure is constanta) 2g) H l2g) 2lg)
) 3D2g) 2D3g)
c) 2D2g) D2g)H 2D3g)
d) ampgD3s) H ampgDs) D2g)
e) 4D3s) H 2Dg) 22Dg)
5) What is the dierence dierence eteen and What is
the sign of for exothermic and endothermic reactions nder
hat circumstances
17) What are the sign convention for C and W
11) Explain the concept of maximum or8
12) free expansion of a gas results into no or8 Explain
13) erive the expression for maximum or8
14) ene enthalpy t constant pressure sho that A
1$) (t is di9cult to calculate lt hoever can e easily
determined Why Explain giving examples
1) tate rst la of thermodynamics Iustify its mathematical
eCuation
1+) Dtain the relationship eteen and for a chemical
reaction
1) What is the expression for or8 done in a chemical reaction
Explain the meaning of each term
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8112019 Chemistry Question 12sci (1)
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a) dissolution of sugar in hot coee
) separation of r and Fr from their mixture
c) spreading of fragrance hen a ottle of perfume is opened
d) Jo of heat from cold oKect to hot oKect
e) heat transfer from ice to room at 2$
37) ene entropy Give its units What does entropy measures
31)Explain ho entropy changes in the folloing processes
a) free=ing of liCuid
) sulimation of solid
c) dissolving of ater in sugar
d) condensation of vapour
32) Which memer of the folloing pairs have larger entropy
Why
a) D2s) or D2g)
) 3Dl) or 2$D2$l)
c) Dg) or 2D4g)
d) eg) or Frg)
e) as) or als)
33) Why is it more convenience to predict spontaneity of reaction
in terms of Gsys rather than total34) ene Gis energy and change in Gis energy What are
the units of Gis energy
3$) tate second la of thermodynamics in terms of entropy and
express it mathematically
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3) tate third la of thermodynamics What is its usefulness
3+) Why is it impossile for any sustance to have an asolute
entropy =ero at temperature greater than 7F
3) (t is impossile for a reaction to e spontaneous yetexothermic Explain ith example
35) (s it possile for a reaction to e nonspontaneous yet
exothermic Explain ith example
47) -redict the sign of in the folloing process Give reasons
for your anser
a) 2D4g) 2D2g)) 6e2D3s) H 32g) 26es) H 32Dg)
c) 2g) H 32g) 23g)
d) ampgD3s) 23g)
e) D2g) D2s)
f) l2g) 2lg)
41) What can e said aout the spontaneity of reactions hen
a) and are oth positive
) and oth are negative
c) is positive and is negative
d) is negative and is positive
42) (dentify hich memer of the folloing pairs has largerentropy Why
a) eg) in a volume of 1 or eg) in a volume of $ oth at 2$
) D2g) at 1atm or D2g) at 17atm oth at the same temperature
8112019 Chemistry Question 12sci (1)
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c) 2$Dl) or 2$Dg)
d) $ moles of e or 2 moles of e
43) What are the signs of for the folloing reaction
Explain ith reasons
2g) 2g)
44) erive the relationship eteen G and total
4$) Iustify the inclusion of Crev and 0 in the denition of entropylt
A Crevgt 0
4) 0he increase in entropy of a system alone does not guarantee
the spontaneity of a process Explain
4+) 0he criterion of spontaneity in terms of Gis energy is the
same as that laid don y second la of thermodynamic o
PROBLEMS
1) 0hree moles of an ideal gas are expanded isothermally from a
volume of 377cm3 to 2$ at 377F against a pressure of 15atm
alculate the or8 done in atm and Koules2) Dne mole of an ideal gas is compressed from $77cm3 against a
constant pressure of 121 17$-a 0he or8 involved in the
process is 3$7I alculate the nal volume
3) alculate the maximum or8 hen 24g of oxygen are
expanded isothermally and reversily from a pressure of 1
17$-a to 1778-a at 25F
4) 0hree moles of an ideal gas are compressed isothermally andreversily to a volume of 2 0he or8 done is 2538I at 22
alculate the initial volume of a gas
8112019 Chemistry Question 12sci (1)
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$) 2 172 8g of nitrogen is expanded isothermally and
reversily at 377F from 1$1$ 17$ m 2 hen the or8 done is
found to e 1+338 I 6ind the nal pressure
) sample of a gas asors 47778I of heata) if volume remains constantlt hat is
) uppose that in addition to asorption of heat y the samplelt
the surrounding does 27778I of or8 on the samplelt hat is
c) uppose that as the original sample asors heatlt it expands
against atmospheric pressure and does 778 I of or8 on its
surroundings What is
+) alculate the or8 done in each of the folloing reactions
tate hether or8 is done on or y the system
a) 0he oxidation of one mole of D2 at $7
2D2g) H D2g) 2D3g)
) decomposition of 2 moles of 4D3 at 177
4D3s) 2Dg) H 22Dg)
) 0he enthalpy change for the reaction
24g) H 2g) 2g) is 27I hen 177m of ethylene and
177m of 2 react at 1atm pressure alculate the pressure
volume or8 and
5) alculate standard enthalpy of the reaction
6e2D3s) H 3Dg) 26es) H 3D2g) from the folloing data
f 76e2D3)A2428Imol1ltf 7D)A117$8Imol1lt
f 7D2)A353$8Imol1
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8112019 Chemistry Question 12sci (1)
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Electro chemitry
Theory
1ene the terms resistivitylt conductivity and molar
conductivity Give its ( units
2Explain the terms conductivity and molar conductivity o are
they interrelated
3Why does conductivity of s solution decrease on dilution of a
solution
4o does molar conductivity of an electrolyte vary ith
concentration
$o does the variation in molar conductivity of an electrolyte
ith concentration diers for strong and ea8 electrolytes
Explain the dierent ehaviour of strong and ea8 electrolytes
toards the variation of conductivity ith concentration
+tate and explain Fohlrausch la of independent migration of
ions o it is useful to determine the molar conductivity of ea8
electrolytes at =ero concentration
o is the molar conductivity of strong electrolytes at =ero
concentration determined y graphical method Why is this
method not useful for ea8 electrolytes
5What is cell constant What is its unit o is it determined
17ene anode and cathode
11 Why is cathode in electrolytic cell considered to e negative
and anode positive
12 -redict the half cell reactions that occur hen fused Fl is
electroly=ed in a cell ith inert electrodes What is the overall cell
reaction
8112019 Chemistry Question 12sci (1)
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13 tate 6aradayBs las of electrolysis
14o ill you calculate the numer of moles of electrons
actually passed and mass of the sustance produced during
electrolysis of a salt solution using reaction stoichiometry1$o many electrons ill have a total charge of 1 coulom
1 o many faradayBs ould e reCuired to plate out 177 mole
of free metal from the folloing cations
a) ampg2H
) r3H
c) -2H
d) uH
1+ ene coulom and faraday
1 escrie the electrolysis of molten al using inert
electrodes
15 What is the dierence eteen electrolytic cell and voltaic
cell
27 Why is anode in galvanic cell considered to e negative and
cathode positive electrode
21 8etch the cell for the electrolysis of molten al (ndicate
cathodelt anode and their signs ho the Jo of electrons and
ions
22 What is salt ridge What are its functions in galvanic cell
23 What are the conventions used to rite cell diagramcell
formula)
24 escrie the construction of aniel cell Write electrode half
reactions and net cell reaction in aniel cell
8112019 Chemistry Question 12sci (1)
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2$ escrie the folloing types of electrodes giving one
examplelt ith reference to formulationlt electrode reaction and
ernst eCuation for electrode potential
a) metalsparingly salt electrode) gas electrode
2 What is redox electrode Give one example ith formulationlt
electrode reaction and ernst eCuation for electrode potential
2+ ene the terms oxidation potentiallt reduction potential and
cell potential
2 What conditions are reCuired for a cell potential to e calledstandard cell potential
25 6ormulate a cell for each of the folloing electrode reactions
a) n2H aC) H 2gl s) L n4H aC) H 2gs) H2l aC)
) ampg s) H r2l) L ampg2H aC) H 2r aC)
37 6ormulate a cell from the folloing electrode reactions
a) l2g) H 2e L 2l aC)
) 2( aC) L (2s) H 2e
31 What are standard electrode potential and standard emf of
the galvanic cell
32 Write ernst eCuation and explain the terms involved in it
What part of the eCuation represents the correction factor for
nonstandard state conditions
33 Write ernst eCuation for the folloing reactions
a) rs) H 36e3H aC) L r3H aC) H 36e2H aC)
) l3H aC) H 3e L l s)
8112019 Chemistry Question 12sci (1)
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34 onsider the folloing E7 values and half reactions
(2s) H 2e L 2( aC) E7A7$3$M
u2H aC) H 2e L u s) E7A733+M
d2H aC) H 2e L ds) E7A77473
a) Which of the metals or nonmetals or ions is the strongest
oxidi=ing agent and hich is the strongest reducing agent
) 0he half reactions can e used to construct three galvanic
cells Which ill have the highest cell potential
3$ -redict hether
a) gH can oxidi=e - to -2H under standard state condition
) E7gA7+55M and E7
-A712M
3 -redict hether the folloing reactions occur under standard
state conditions
a) Dxidation of gs) y l2g) E7gA7Mlt E7
l2A13M
) eduction of 6e
3H
to 6e
2H
y us) E
7
6e3Hlt 6e2H A 7++MltE7uA14M
3+ 8etch and descrie the operation of
a) dry cell
) 2D2 fuel cell
3 What are the advantages and disadvantages of fuel cells
35 8etch lead storage cell
47 Write electrode reaction and overall cell reaction during the
operation of lead storage cell
41 Write electrode reaction and overall cell reaction hen lead
accumulator ehaves as an electrolytic cell
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42 o can ernst eCuation e used to sho that electrode
potential is eCual to the standard electrode potential y putting
approximate values in ernst eCuation se u2HNd half cell for
illustration
43 o are G7lt E7cell and eCuilirium constant related for a
particular reaction
44 Why is eCuilirium constant related to E7cell and not Ecell
4$ G7 for a redox reaction depends on the numer of electrons
transferred Explain
4 o does the eCuiliriumlt G7An6E7 explain that an
electrical potential is an intensive property
4+ Write shorthand notation for the cell for each of the folloing
reactions
a) u2H aC) H 2gs) H 2r L u s) H 2gr s)
) n2H aC) is oxidi=ed y r2 l)
4 rrange the folloing reducing agents in order of increasing
strength under standard state conditions 0he standard potentialsfor the reduction half reactions are given
gH aC) 7M)lt l3H aC) 1M)lt 62g) 2+M)lt l2g) 13M)lt
(2s) 7$4M)lt d2H aC) 74M)
45 rrange the folloing oxidi=ing agents in order of increasing
strength under standard state conditions 0he standard potentials
for the reduction half reactions are given
ls) 1M)lt l aC) 13M)lt us) 734M)lt 6es)744M)lt r
aC) 175M)lt is) 72M)
$7 Which species in each of the folloing pairs is etter oxidi=ing
agent under standard state conditions standard potential are
given) Give reasons for your anser
8112019 Chemistry Question 12sci (1)
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a) r2l) 175M) or u3H 14M)
) H aC) or gH aC) 7M)
c) -2H aC) 713M) or o2H 72M)
d) l2 g) 13M) or r3H 7+4M)
$1 Which species in each of the folloing pairs is etter reducing
agent under standard conditions E7 values are given Give
reasons for your anser
a) Fs) 2353M) or ampgs) 23M)
) o2H aC) 11M) or (n s) 714M)
c) e3H aC) 11M) or 0i2H73+M)
d) gl) 7M) or is) 723M)
PROBLEMS
1 conductivity cell lled ith 771amp Fl given at 2$o the
resistance of 74ohms 0he conductivity of Fl at 2$
o
is 7777
CHEMISTRY
d f O DF EEampE0
1) What are dloc8 elements
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2) What are floc8 elements
3) Explain the meaning of
i) 0ransition series ii) (nner transition element
4) Explain the position of the folloing in periodic tale
i) dloc8 elements ii) anthanoids iii) ctinoids
$) Explain the oxidation state of 1st ro elements of transition
series
) Explain the oxidation states of lanthanoids and actinoids
+) Why do lanthanoids form coloured compounds ) Explainlt most of the transition metal compounds are
remar8aly coloured
5) Why chromium has electronic conguration 3d$ 4s1 and not 3d4
4s2
17) Why does copper sho anormal electronic conguration
11) Explainlt the trends in atomic and ionic si=es of lanthanoidsand also of 1st ro elements of transition series
12) What are actinoids
13) What are transuranic elements Write their name
14) Why transition elements sho tendency to form large numer
of complexes
1$) Explain the compounds of copper ((() are coloured ut thoseof =inc are colourless
1) o is potassium dichromate prepared from chrome ion
1+) Write the preparationlt properties and use of potassium
permanganate
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1) Explainlt hy -t(M) complexes are generally octahedral hile
-t(() complexes are sCuare planar
15) ierentiate eteen lanthanoids and actinoids
27) What are chemical tins Give examples
21) Explain hy Gd3H is colourless
COORDINATION COMPOUNDS
1) What is the dierence eteen doule salt and coordinationcompounds
2) Explainlt hy 6e4)2 D4)22D) is a salt ut F 4P6e)Q is a
complex compound
3) Write the formula of the folloing complexes
i) alcium hexa cyano ferrate (()
ii) iammine dichloro platinum
iii) is ethylene diammine) dichloro iridium ((() ion
iv) -entamine caronato chromium ((() D(E
v) 0risethylene diammine ) coalt((() sulphate
vi) iamine ethylene diammine nic8el (() acetate
4) Write the rules hich are applied hile riting the formulas of
coordination compounds
$) ene the terms
i) entral metal atomgtion
ii) igand
8112019 Chemistry Question 12sci (1)
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iii) oordination compound
iv) oordination sphere
v) oordination numer
vi) oordination polyhedral
vii) omoleptic and heteroleptic complexes
viii) harge on the complexes
ix) oordination entity
) Write (- name of the folloing complexes
i) Pr2D)4 l2QD3
ii) P-ten)l4Q
iii) F 2Pi)4Q
iv) sP6el4Q
v) rl3-y)3
vi) F 3Po2D4)3Q
vii) Por2en)2Q
viii) P-tl4Q2
ix) Po2D))en)2Q2H
x) F 3Pl2D4)3Q
+) Explain the importance of principles of additive nomenclature
) (dentify the folloing ions y a simple test forming complex
compound
i) u2H ii) i2H iii) 6e3H iv) o2H
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5) Dn the asis of WernerBs theory explainlt hy coalt amine
complexlt ol343 hen treated ith gD3 solution
precipitates only one ion even though there are three ions
17) alculate the eective atomic numer E) of the centralmetal atom in the folloing compounds
i) F 3P6e)Q ii) rD)
11) Write the postulates of WernerBs theory
12) Explain the onding in ol333 and ol3$3
13) Explain stereoisomerism in metal complexes ith coordination
numer 4 and 14) Why the tetrahedral complexes do not exhiit geometrical
isomerism
1$) ra cis and trans geometrical isomers of
i) dichlororomo iodo palladium (() ion
ii) P-t(()3)2l2Q
iii) Po((()3)l3Q
iv) Po((()3)42D)lQ2H
1) ra all possile geometrical isomers of P-t(M)
3)2-y)2l2Q2H ion
1+) Write oxidation statelt coordination numer and electronic
conguration of the metal atom in the folloing complexes
i) rl3-y)3 ii) F 4Pampn)Q
1) lassify the folloing ligands into monodentatelt polydentate
and amidentate
i) 3 ii) iii) iv) v) D2 vi) ethylene diammine
vii) oxalate
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viii) triaminotriethylamine
15) ol3$32D is a pin8 solidlt the solution of this salt is also
pin8 and formed 3mol of gl ith silver nitrate solution Dn
heating pin8 solidlt it loses one ater molecule and forms purplesolid having same ratio of o3l as that of pin8 solid 0he
purple solid hen dissolved in ater and treated ith forms 1 mol
of gl ra the structure and name of the pin8 and purple
solids
27) ame the octahedral complex ions
i) Po2D4) en)2QH ii) transPr)4 3)2Q
21) ra the structures of the folloing complexes
i) Pol4Q2 ii) Pampn3)Q2H iii) P-tlQ iv) iD)4 v) Pi)4Q2
22) (n an octahedral crystal eldlt dra the gure to sho splitting
of dorital
23) What are ea8 eld and strong eld ligands What is spectro
chemical series
24) Pi)4Q2 is diamagnetic hile Pr3)Q3H is paramagnetltexplain
2$) Dn the asis of valence ond theory explain the nature of
onding in the folloing complexes
i) Po6Q3 ii) Po2D4)3Q3
2) lue coloured copper sulphate solution gave folloing
experimental results Explain the same
i) With aCueous potassium chloride it gave right green solution
ii) With aCueous potassium Juoride it gave a green precipitate
2+) ra the structures of optically active isomers of Poen)3Q3H
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2) ra the geometrical and optical isomers of
i) Pol2en)2QH ii) Polen)23)Q2H
25) What is lin8age isomerism Explain ith an example
37) What are hydrate isomers Explain ith examples
31) Explain the structure of
i) upraammonium sulphate ii) Po3)Q3H
32) What are the limitations of valence ond theory
33) Explain the magnetic properties of coordination compounds
34) Write the salient features of crystal eld theory What are itslimitations
3$) Explain the octahedral geometry of complexes using crystal
eld theory
3) Write a note on colours in coordination compounds
3+) Explain the factors aecting the staility of coordination
compound3) Write rief the applications of coordination compounds
HALOGEN DERIVATIVES O ALANES AND ARENES
1) What are al8yl halides o are they classied
2) Write (- names of the folloing compounds
i)
ii) 2Al
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iii)
iv)
v)
vi) secutyl chloride
vii) neopentyl romide
viii) tutyl iodide
ix) isopropyl romide
3) o is ethyl romide prepared from
i) Ethyl alcohol ii) ethane iii) ethane
4)Write the preparation of isopropyl chloride using the folloing
reagents
i) -l3 ii) -l$ iii) l2 iv) l v) Dl2
$) o is group replaced y folloing functional rroups
i) OD ii) O iii) O iv) O2
) Write a note on
i) andmeyerBs reaction ii) Wurt= reaction iii) 6in8elstein reaction
iv) 6ittig reaction v) 6riedel raft reaction
+) (dentify and in the folloing
8112019 Chemistry Question 12sci (1)
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) Give the structures of the folloing compounds
i) 3romo2methyl pentane ii) 2romo3ethyl hexane iii) 1
holo utane
iv) pichloroen=ene v) 1lt1lt10richloroethane
5) student has performed an experiment in the laoratory e
mixed ater ith hexane and found to layers separated econd
time he mixed chloroform ith ater and he again found to
layers in the test tue Explain hich ill e upper layer and
hich one ill e loer layer in oth the experiments
17) onvert 1hloroutane into the folloing compounds
i) utane1ol ii) 1(odoutane iii) 3222 iv)
11) 6or each pair of compoundslt state hich compound is etter
2 sustrate
i) 2romoutanelt isopropyl romide ii) 1(odo2lt2dimethyl
propane or isopropyl iodide
12) hoose the memer that ill react faster from the folloing
pairs y 1 mechanism
13) -redict the expected product of sustitution reaction
i) isoutyl chloride mH sodium ethoxide
ii) nutyl chloride H sodium
iii) 1hloro propane H aC potassium hydroxide
iv) aniline H aD2gt l
14) Write the products
i) $22A2 H r L
ii) $A2 H r
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iii)
iv)
v)
1$) (dentify the chiral and achiral molecules
i)
ii)
iii)
1) iscuss 2 mechanism of methyl romide using aCueous
FD ra energy prole diagram1+) Write the mechanism of the reaction hen tutyl chloride is
treated ith aCueous FD ith energy prole diagram
1) ierentiate eteen 1 and 2 mechanism
15) Explain the nature of ond in
i) 322 ii)
27) What are uses of
i) 0 ii) (odoform iii) hloroform iv) aron tetrachloride
21) l8yl halides are polar and miscile ith aterlt explain
22) Which one of the folloing is more easily hydrolysed y
aCueous FD
$l$ and $2l
23) rrange the folloing groups in descending order 2lt D3lt
D3lt DD and l
24) ssign or conguration to each of the folloing
structures
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i)
ii)
iii)
iv)
DDlt -ED E0E
1) What are alcohols o are they classied
2) What are monohydric alcohols o are they classied
4) Write the structures of folloing alcohols
i) 1Ethylcyclohexanol ii) ex3en2ol iii)yclohex2en1ol
iv) -entane1lt4diol
v) 2lt4imethylhexane1lt3lt$triol
$) Explain the folloing
i) -ropan1ol has higher oiling point than nutane
ii) ampethanol is more solule in ater than -ropan1ol
) Write the mechanism of hydration of ethylene to ethyl alcohol
+) -ropan1ol can not e prepared y acid catalyst hydration of
propenelt then ho is propene converted into propan1ol
)5) o is propanone converted into
i) -ropan2ol ii) 2ampethyl propan2ol
17) o ill you otain utan2ol from
8112019 Chemistry Question 12sci (1)
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i) -ropanal ii) utan2one iii) ut2ene
11) o is propan1ol prepared from
i) -ropanal ii) -ropanoic acid
12) o is cyclopentanol prepared from
i) yclopentanone ii) yclopentene
14) Write the mechanism of acid catalysed dehydration of ethanol
to give ethane
1$) Write the structure of aldehyde lt caroxylic acid and ester
that yield folloing alcohol
1+) o ill you prepare
i) 2ampethylutane1ol from an al8ene
ii) cyclohexylmethanol from a Grignard reagent
iii) 1phenylethanol from acetaldehyde
1) o are folloing conversions rought aout
i) en=yl chloride to en=yl alcohol
ii) en=yl alcohol to en=oic acid
iii) 1Ethylcyclohexanol from yclohexanone
15) What are phenols o are they classied
27)21) Give the structures and (- names of isomeric phenols
represented y the molecular formula 17D
22) o is phenol prepared from
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i) hloroen=ene ii) (sopropyl en=ene iii) en=ene sulphonic
acid iv) aniline
23 ) Explain the folloing
i) -henol is more acidic than phenol
ii) onitrophenol is more acidic than ocresol
iii) pnitrophenol is less volatile than onitrophenol
24) Explain the folloing reactions of phenol
i) FoleBs reaction ii) iemer0iemann reaction
2$) ame the reagents used to convert phenol intoi) picric acid ii) 2lt4lt0riromophenol iii) en=ene iv) ophenol
sulphonic acid
2) What is the action of folloing reagents on phenol i)
romine in 2 at lo temperature
ii) ilute nitric acid at room temperature iii) oncentrated
sulphuric acid at room temperature
2+) Give distinguish test eteen phenol and ethanol
2) What are ethers o are ethers classied
25) What is metamerism Give the structure and (- name of
metamers of 2ampethoxypropane
37) Write the mechanism for acidic dehydration of ethanol
31) o is diethyl ether prepared y continuous ethericationprocess Why is the process so called
32) o ill you prepared methoxyethane from
i) l8yl halide ii) ia=omethane
33) tate the important uses of i) -henol ii) diethyl ether
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34) Write the mechanism of action of hydrogen romide on tert
utyl methyl ether
3$) Explain the folloing reactions of anisole
i) romination ii) itration iii) 6riedelrafts al8ylation iv)6riedelrafts acylation
3) Explainlt i) 0he OD group attached to aromatic ring in
phenols and ii) 0he al8oxy group in al8yl aryl ethers are ortholt
para directing and activate the aromatic ring toars electrophilic
sustitution
3+) Write the chemical eCuations for Williamson synthesis of 2
Ethoxy2methypentane starting from ethanol and 2ampethylpentan2ol
3) n organic compound ith the formula 417D3 shos
properties of ether and alcohol hen treated ith an excess of
r yields only one compound 1lt2 diromomethane Write
structural formula of ether and that of alcohol
ALDEHYDES ETONES AND CABO$YLIC
ACID
1) Write the structure and give (- names of the folloing
compounds
i) chloropropionaldehyde
ii) Rhydroxyutyraldehyde
iii) isoutyraldehyde
iv) Rmethylvaleraldehyde
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v) isopropyl methyl 8etone
vi) diisopropyl 8etone
vii) mromoen=aldehyde
viii) dien=yl 8etone
ix) divinyl 8etone
x) allyl methyl 8etone
xi) ethyl phenyl 8etone
xii) nutyrophenone
2) Write the structure of folloing compounds
i) 4ampethyl3nitroen=ophenone ii) 2ampethyl4oxopentanal iii)
3Dxopentanoic acid iv) 4chloropropiophenone v) 3
ampethoxyutanal vi) 4ydroxycyclohaxane caraldehyde
3) o ill you prepare i) propiophenone from propanenitrile ii)
4chloroen=aldehyde from 4chlorotoluene iii)
yclohaxanecaraldehyde from cyclohexylmethanol iv) 4
methoxyacetophenone from anisole v) 4methylen=aldehydefrom toluene
4) rrange the folloing compounds in the increasing order of
their oiling points
i) dimethyl etherlt ethyl alcohollt propanelt acetaldehyde
ii) acetonelt npropyl alcohollt ethyl methyl alcohol and nutane
$) What is the action of hydrogen cyanide in asic medium on i)utanone ii) 2lt4dichloroen=aldehyde
) What is the action of folloing compounds on cyclohexanone in
presence of dry hydrogen chloride
i) ethyl alcohol ii) ethylene glycol
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+) Write the structure of product in the folloing reactions
i) 322D3
ii) $2D3
) Write the structures of caronyl compounds and ammonia
derivatives that comine to give folloing imines
i)
ii)
iii)
iv)v)
vi)
5) Write the chemical eCuations for aldol condensation or
anni==aro reaction that folloing compounds undergo
i) -ropanal ii) 2ampethylpropanal iii) -entanal iv) 3
ampethylutanal v) cetophenonevi) pampethoxyen=aldehyde vii) 2ampethylcyclohaxanone viii)
chloral ix) yclopentanone
x) -henyl acetaldehyde xi) 1-henylpropan1one
17) Write the structure of the maKor product of the folloing
crossed aldol condensation
i) formaldehyde and propionaldehydeii) en=aldehyde ith acetone
11) (dentify the compounds SBlt SB and SB in the folloing
reactions and rerite the complete eCuations
i)
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ii)
12)o ill you eect folloing tostep conversions
i) -ropanal into utanone ii) utanone into ut2ene iii)
en=ene into mromoacetophenone iv) ex3yne into exan
3one v) en=oic acid into mnitroen=ylalcohol
13) o ill you convert en=aldehyde into folloing compounds
ampore than one steps may e reCuired
i) en=ophenone ii) en=oic acid iii) 3-henylpropan1ol iv)hydroxyphenylacetic acid
14) Give a chemical test to distinguish eteen folloing pairs of
compounds
i) Ethanal and propanone ii) -rpopanal and propanone iii)
-entane2one and pentane3one
1$) Write the structure and (- names of folloing caroxylicacids
i) ltRdimethylutanoic acid ii) Rphenylutyric acid iii) 1038389
chloromethylvaleric acid
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SOLUTION AND COLLIGATIVE PROPERTY
THEORY
1) ene the terms solutionlt solutelt solvent and concentration
2) What are the dierent types of solution
3) Explain dierent ays in hich concentration of a solution can
e expressed
4)ene i) percentage y eightlt ii) mole fractionlt iii) ampolalitylt iv)
ampolarity
$)ene the term colligative property Give examples
) tate and explain enryBs la
+) Explain solid solution
) What is a vapour pressure of liCuid
5) Explain the eect of temperature on the vapour pressure of
liCuid
17) What are the factors hich aects vapour pressure
11) What is loering of vapour pressure of a solution
12) What is relative loering of vapour pressure
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13) tate aoultBs la and otain expression for loering of
vapour pressure hen nonvolatile solute is dissolved
14) erive the relationship eteen relative loering of vapour
pressure and molar mass of solute1$) What is oiling point of liCuid
1) What is elevation of oiling point
1+) What is molal elevation constant oes it depend on the
nature of the solute
1) erive the relation eteen elevation of oiling point and
molar mass of the solute15) ene free=ing point of liCuid
27) What causes depression in free=ing point
21) ene molal depression constant
22) o molar mass of a nonvolatile solute is related to the
depression in free=ing point erive an eCuation
23) What is osmosis
24) ene semipermeale memrane and osmotic pressure
2$) ene the terms i) (sotonic solution ii) ypertonic solution
iii) ypotonic solution
2) tate i) vant ooyles la ii) vant oharles la
2+) erive vant o eCuation for osmotic pressure of a solution
2) o molar mass of a solute is determined from osmotic
pressure measurements
25) Explain anormal osmotic pressure
37) tate vant ovogadroBs la
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31) Explain
i) normal molecular masses
ii) vant o factor
32) erive the eCuations
i) A
ii) A
PROBLEMS
1) 342g of glucose is dissolved in 477g of ater alculate
percentage y mass of glucose solution
2) solution is prepared y dissolving certain amount of solute in
$77g of ater 0he percentage y mass of a solute in solution is
23 alculate mass of solute
3)4cm3 of methyl alcohol is dissolved in 2$2g of ater
alculatelt i) percentage y mass of methyl alcohol ii) ampole
fraction of methyl alcohol and ater Given density of methyl
alcohol A 7+5$2ggtcm3 and A12lt A1 and DA1)
4) 12cm3 of en=ene is dissolved in 1cm3 of xylene alculate
y volume of en=ene
$) alculate mole fraction of l in solution of l containing
24 of l y massA1lt lA3$$)
) alculate mole fraction of solute in its 2 molal aCueous
solution
8112019 Chemistry Question 12sci (1)
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+) alculate the mole fractionlt molality and molarity of D3 in a
solution containing 122 D3 Given density of
D3A173ggtcm3lt A1lt A14lt DA1
) ulphuric acid is 5$ y mass alculate mole fraction andmolarity of 2D4 of density 151ggtcm3
5) Cueous solution of aD is mar8ed 17gt) 0he density of
the solution is 17+7ggtcm3
alculatelt
i) molarity ii) molality and iii) mole fraction of aD and ater
aA23lt A1 and DA1
17) attery acid is 422amp aCueous 2D4 solutionlt and has density
of 121ggtcm3 What is the molality of 2D4 A1lt A32lt DA1
11) 0he vapour pressure of 21 solution of a nonelectrolyte in
ater at 177 is +$$mm g alculate the molar mass of the
solute
12) 0he vapour pressure of ater at 27 is 1+mm g alculate
the vapour pressure of a solution containing 2g of
urea2D2) in $7g of ater A14lt A12lt A1
13) (n an experimentlt 174g of mannitol ere dissolved in 177g
of ater 0he vapour pressure of ater as loered y 7375mm
g from 1+$3$mm g alculate the molar mass of mannitol
14) solution containing 7$12g of naphthalene molar mass A
121+ggtmol) in $7g of l4 gives a oiling point elevation of
7472F While a solution of 721g of un8non solute in the
same mass of the solvent gives a oiling point elevation of 74+F
6ind the molar mass of the un8non solute
F for l4A $73F 8g mol1 of solvent)
8112019 Chemistry Question 12sci (1)
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1$) alculate the mass in grams of an impurity of molar mass
177gmol1 hich ould e reCuired to raise the oiling point of
$7g of chloroform y737F
F for chloroformA 33F 8g mol
1
)1) oiling point of a solvent is 72 When 7415g of the solute
of molar mass 2$24g mol1 as dissolved in +$g of the solventlt
the oiling point of the solution as found to e 72$ 6ind
the molal elevation constant
1+) 7ml of glacial acetic acid ith density 17gm 1 is
dissolved in 18g ater and the solution fro=e at 7727$
alculate vant o factor and F f for ater is1F 8g mol1
1) enryBs la constant for soluility of methane in en=ene is
42+ 17$mm g at constant temperature alculate the
soluility of methane at +7mm g pressure at same
temperature
CHEMICAL THERMODYNAMICS AND ENERGIES
Theory
1)ene the terms systemlt surroundinglt open systemlt close
systemlt isolated systemlt exothermic reactionslt endothermic
reactionslt extensive properties and intensive properties
2) Explain the term state function Give to examples of state
functions and to example of path function
3) Explain thermodynamics eCuilirium
4) istinguish eteen isothermal and adiaatic process
$) What is a reversile process What are its features
) ho that pressure times volume is eCual to or8
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+) erive the expression for or8 hen a gas expands against
constant external pressure
) lassify the folloing reactions according to or8 done y the
systemlt on the system and no or8 done if pressure is constanta) 2g) H l2g) 2lg)
) 3D2g) 2D3g)
c) 2D2g) D2g)H 2D3g)
d) ampgD3s) H ampgDs) D2g)
e) 4D3s) H 2Dg) 22Dg)
5) What is the dierence dierence eteen and What is
the sign of for exothermic and endothermic reactions nder
hat circumstances
17) What are the sign convention for C and W
11) Explain the concept of maximum or8
12) free expansion of a gas results into no or8 Explain
13) erive the expression for maximum or8
14) ene enthalpy t constant pressure sho that A
1$) (t is di9cult to calculate lt hoever can e easily
determined Why Explain giving examples
1) tate rst la of thermodynamics Iustify its mathematical
eCuation
1+) Dtain the relationship eteen and for a chemical
reaction
1) What is the expression for or8 done in a chemical reaction
Explain the meaning of each term
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8112019 Chemistry Question 12sci (1)
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a) dissolution of sugar in hot coee
) separation of r and Fr from their mixture
c) spreading of fragrance hen a ottle of perfume is opened
d) Jo of heat from cold oKect to hot oKect
e) heat transfer from ice to room at 2$
37) ene entropy Give its units What does entropy measures
31)Explain ho entropy changes in the folloing processes
a) free=ing of liCuid
) sulimation of solid
c) dissolving of ater in sugar
d) condensation of vapour
32) Which memer of the folloing pairs have larger entropy
Why
a) D2s) or D2g)
) 3Dl) or 2$D2$l)
c) Dg) or 2D4g)
d) eg) or Frg)
e) as) or als)
33) Why is it more convenience to predict spontaneity of reaction
in terms of Gsys rather than total34) ene Gis energy and change in Gis energy What are
the units of Gis energy
3$) tate second la of thermodynamics in terms of entropy and
express it mathematically
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3) tate third la of thermodynamics What is its usefulness
3+) Why is it impossile for any sustance to have an asolute
entropy =ero at temperature greater than 7F
3) (t is impossile for a reaction to e spontaneous yetexothermic Explain ith example
35) (s it possile for a reaction to e nonspontaneous yet
exothermic Explain ith example
47) -redict the sign of in the folloing process Give reasons
for your anser
a) 2D4g) 2D2g)) 6e2D3s) H 32g) 26es) H 32Dg)
c) 2g) H 32g) 23g)
d) ampgD3s) 23g)
e) D2g) D2s)
f) l2g) 2lg)
41) What can e said aout the spontaneity of reactions hen
a) and are oth positive
) and oth are negative
c) is positive and is negative
d) is negative and is positive
42) (dentify hich memer of the folloing pairs has largerentropy Why
a) eg) in a volume of 1 or eg) in a volume of $ oth at 2$
) D2g) at 1atm or D2g) at 17atm oth at the same temperature
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c) 2$Dl) or 2$Dg)
d) $ moles of e or 2 moles of e
43) What are the signs of for the folloing reaction
Explain ith reasons
2g) 2g)
44) erive the relationship eteen G and total
4$) Iustify the inclusion of Crev and 0 in the denition of entropylt
A Crevgt 0
4) 0he increase in entropy of a system alone does not guarantee
the spontaneity of a process Explain
4+) 0he criterion of spontaneity in terms of Gis energy is the
same as that laid don y second la of thermodynamic o
PROBLEMS
1) 0hree moles of an ideal gas are expanded isothermally from a
volume of 377cm3 to 2$ at 377F against a pressure of 15atm
alculate the or8 done in atm and Koules2) Dne mole of an ideal gas is compressed from $77cm3 against a
constant pressure of 121 17$-a 0he or8 involved in the
process is 3$7I alculate the nal volume
3) alculate the maximum or8 hen 24g of oxygen are
expanded isothermally and reversily from a pressure of 1
17$-a to 1778-a at 25F
4) 0hree moles of an ideal gas are compressed isothermally andreversily to a volume of 2 0he or8 done is 2538I at 22
alculate the initial volume of a gas
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$) 2 172 8g of nitrogen is expanded isothermally and
reversily at 377F from 1$1$ 17$ m 2 hen the or8 done is
found to e 1+338 I 6ind the nal pressure
) sample of a gas asors 47778I of heata) if volume remains constantlt hat is
) uppose that in addition to asorption of heat y the samplelt
the surrounding does 27778I of or8 on the samplelt hat is
c) uppose that as the original sample asors heatlt it expands
against atmospheric pressure and does 778 I of or8 on its
surroundings What is
+) alculate the or8 done in each of the folloing reactions
tate hether or8 is done on or y the system
a) 0he oxidation of one mole of D2 at $7
2D2g) H D2g) 2D3g)
) decomposition of 2 moles of 4D3 at 177
4D3s) 2Dg) H 22Dg)
) 0he enthalpy change for the reaction
24g) H 2g) 2g) is 27I hen 177m of ethylene and
177m of 2 react at 1atm pressure alculate the pressure
volume or8 and
5) alculate standard enthalpy of the reaction
6e2D3s) H 3Dg) 26es) H 3D2g) from the folloing data
f 76e2D3)A2428Imol1ltf 7D)A117$8Imol1lt
f 7D2)A353$8Imol1
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8112019 Chemistry Question 12sci (1)
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Electro chemitry
Theory
1ene the terms resistivitylt conductivity and molar
conductivity Give its ( units
2Explain the terms conductivity and molar conductivity o are
they interrelated
3Why does conductivity of s solution decrease on dilution of a
solution
4o does molar conductivity of an electrolyte vary ith
concentration
$o does the variation in molar conductivity of an electrolyte
ith concentration diers for strong and ea8 electrolytes
Explain the dierent ehaviour of strong and ea8 electrolytes
toards the variation of conductivity ith concentration
+tate and explain Fohlrausch la of independent migration of
ions o it is useful to determine the molar conductivity of ea8
electrolytes at =ero concentration
o is the molar conductivity of strong electrolytes at =ero
concentration determined y graphical method Why is this
method not useful for ea8 electrolytes
5What is cell constant What is its unit o is it determined
17ene anode and cathode
11 Why is cathode in electrolytic cell considered to e negative
and anode positive
12 -redict the half cell reactions that occur hen fused Fl is
electroly=ed in a cell ith inert electrodes What is the overall cell
reaction
8112019 Chemistry Question 12sci (1)
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13 tate 6aradayBs las of electrolysis
14o ill you calculate the numer of moles of electrons
actually passed and mass of the sustance produced during
electrolysis of a salt solution using reaction stoichiometry1$o many electrons ill have a total charge of 1 coulom
1 o many faradayBs ould e reCuired to plate out 177 mole
of free metal from the folloing cations
a) ampg2H
) r3H
c) -2H
d) uH
1+ ene coulom and faraday
1 escrie the electrolysis of molten al using inert
electrodes
15 What is the dierence eteen electrolytic cell and voltaic
cell
27 Why is anode in galvanic cell considered to e negative and
cathode positive electrode
21 8etch the cell for the electrolysis of molten al (ndicate
cathodelt anode and their signs ho the Jo of electrons and
ions
22 What is salt ridge What are its functions in galvanic cell
23 What are the conventions used to rite cell diagramcell
formula)
24 escrie the construction of aniel cell Write electrode half
reactions and net cell reaction in aniel cell
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2$ escrie the folloing types of electrodes giving one
examplelt ith reference to formulationlt electrode reaction and
ernst eCuation for electrode potential
a) metalsparingly salt electrode) gas electrode
2 What is redox electrode Give one example ith formulationlt
electrode reaction and ernst eCuation for electrode potential
2+ ene the terms oxidation potentiallt reduction potential and
cell potential
2 What conditions are reCuired for a cell potential to e calledstandard cell potential
25 6ormulate a cell for each of the folloing electrode reactions
a) n2H aC) H 2gl s) L n4H aC) H 2gs) H2l aC)
) ampg s) H r2l) L ampg2H aC) H 2r aC)
37 6ormulate a cell from the folloing electrode reactions
a) l2g) H 2e L 2l aC)
) 2( aC) L (2s) H 2e
31 What are standard electrode potential and standard emf of
the galvanic cell
32 Write ernst eCuation and explain the terms involved in it
What part of the eCuation represents the correction factor for
nonstandard state conditions
33 Write ernst eCuation for the folloing reactions
a) rs) H 36e3H aC) L r3H aC) H 36e2H aC)
) l3H aC) H 3e L l s)
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34 onsider the folloing E7 values and half reactions
(2s) H 2e L 2( aC) E7A7$3$M
u2H aC) H 2e L u s) E7A733+M
d2H aC) H 2e L ds) E7A77473
a) Which of the metals or nonmetals or ions is the strongest
oxidi=ing agent and hich is the strongest reducing agent
) 0he half reactions can e used to construct three galvanic
cells Which ill have the highest cell potential
3$ -redict hether
a) gH can oxidi=e - to -2H under standard state condition
) E7gA7+55M and E7
-A712M
3 -redict hether the folloing reactions occur under standard
state conditions
a) Dxidation of gs) y l2g) E7gA7Mlt E7
l2A13M
) eduction of 6e
3H
to 6e
2H
y us) E
7
6e3Hlt 6e2H A 7++MltE7uA14M
3+ 8etch and descrie the operation of
a) dry cell
) 2D2 fuel cell
3 What are the advantages and disadvantages of fuel cells
35 8etch lead storage cell
47 Write electrode reaction and overall cell reaction during the
operation of lead storage cell
41 Write electrode reaction and overall cell reaction hen lead
accumulator ehaves as an electrolytic cell
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42 o can ernst eCuation e used to sho that electrode
potential is eCual to the standard electrode potential y putting
approximate values in ernst eCuation se u2HNd half cell for
illustration
43 o are G7lt E7cell and eCuilirium constant related for a
particular reaction
44 Why is eCuilirium constant related to E7cell and not Ecell
4$ G7 for a redox reaction depends on the numer of electrons
transferred Explain
4 o does the eCuiliriumlt G7An6E7 explain that an
electrical potential is an intensive property
4+ Write shorthand notation for the cell for each of the folloing
reactions
a) u2H aC) H 2gs) H 2r L u s) H 2gr s)
) n2H aC) is oxidi=ed y r2 l)
4 rrange the folloing reducing agents in order of increasing
strength under standard state conditions 0he standard potentialsfor the reduction half reactions are given
gH aC) 7M)lt l3H aC) 1M)lt 62g) 2+M)lt l2g) 13M)lt
(2s) 7$4M)lt d2H aC) 74M)
45 rrange the folloing oxidi=ing agents in order of increasing
strength under standard state conditions 0he standard potentials
for the reduction half reactions are given
ls) 1M)lt l aC) 13M)lt us) 734M)lt 6es)744M)lt r
aC) 175M)lt is) 72M)
$7 Which species in each of the folloing pairs is etter oxidi=ing
agent under standard state conditions standard potential are
given) Give reasons for your anser
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a) r2l) 175M) or u3H 14M)
) H aC) or gH aC) 7M)
c) -2H aC) 713M) or o2H 72M)
d) l2 g) 13M) or r3H 7+4M)
$1 Which species in each of the folloing pairs is etter reducing
agent under standard conditions E7 values are given Give
reasons for your anser
a) Fs) 2353M) or ampgs) 23M)
) o2H aC) 11M) or (n s) 714M)
c) e3H aC) 11M) or 0i2H73+M)
d) gl) 7M) or is) 723M)
PROBLEMS
1 conductivity cell lled ith 771amp Fl given at 2$o the
resistance of 74ohms 0he conductivity of Fl at 2$
o
is 7777
CHEMISTRY
d f O DF EEampE0
1) What are dloc8 elements
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2) What are floc8 elements
3) Explain the meaning of
i) 0ransition series ii) (nner transition element
4) Explain the position of the folloing in periodic tale
i) dloc8 elements ii) anthanoids iii) ctinoids
$) Explain the oxidation state of 1st ro elements of transition
series
) Explain the oxidation states of lanthanoids and actinoids
+) Why do lanthanoids form coloured compounds ) Explainlt most of the transition metal compounds are
remar8aly coloured
5) Why chromium has electronic conguration 3d$ 4s1 and not 3d4
4s2
17) Why does copper sho anormal electronic conguration
11) Explainlt the trends in atomic and ionic si=es of lanthanoidsand also of 1st ro elements of transition series
12) What are actinoids
13) What are transuranic elements Write their name
14) Why transition elements sho tendency to form large numer
of complexes
1$) Explain the compounds of copper ((() are coloured ut thoseof =inc are colourless
1) o is potassium dichromate prepared from chrome ion
1+) Write the preparationlt properties and use of potassium
permanganate
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1) Explainlt hy -t(M) complexes are generally octahedral hile
-t(() complexes are sCuare planar
15) ierentiate eteen lanthanoids and actinoids
27) What are chemical tins Give examples
21) Explain hy Gd3H is colourless
COORDINATION COMPOUNDS
1) What is the dierence eteen doule salt and coordinationcompounds
2) Explainlt hy 6e4)2 D4)22D) is a salt ut F 4P6e)Q is a
complex compound
3) Write the formula of the folloing complexes
i) alcium hexa cyano ferrate (()
ii) iammine dichloro platinum
iii) is ethylene diammine) dichloro iridium ((() ion
iv) -entamine caronato chromium ((() D(E
v) 0risethylene diammine ) coalt((() sulphate
vi) iamine ethylene diammine nic8el (() acetate
4) Write the rules hich are applied hile riting the formulas of
coordination compounds
$) ene the terms
i) entral metal atomgtion
ii) igand
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iii) oordination compound
iv) oordination sphere
v) oordination numer
vi) oordination polyhedral
vii) omoleptic and heteroleptic complexes
viii) harge on the complexes
ix) oordination entity
) Write (- name of the folloing complexes
i) Pr2D)4 l2QD3
ii) P-ten)l4Q
iii) F 2Pi)4Q
iv) sP6el4Q
v) rl3-y)3
vi) F 3Po2D4)3Q
vii) Por2en)2Q
viii) P-tl4Q2
ix) Po2D))en)2Q2H
x) F 3Pl2D4)3Q
+) Explain the importance of principles of additive nomenclature
) (dentify the folloing ions y a simple test forming complex
compound
i) u2H ii) i2H iii) 6e3H iv) o2H
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5) Dn the asis of WernerBs theory explainlt hy coalt amine
complexlt ol343 hen treated ith gD3 solution
precipitates only one ion even though there are three ions
17) alculate the eective atomic numer E) of the centralmetal atom in the folloing compounds
i) F 3P6e)Q ii) rD)
11) Write the postulates of WernerBs theory
12) Explain the onding in ol333 and ol3$3
13) Explain stereoisomerism in metal complexes ith coordination
numer 4 and 14) Why the tetrahedral complexes do not exhiit geometrical
isomerism
1$) ra cis and trans geometrical isomers of
i) dichlororomo iodo palladium (() ion
ii) P-t(()3)2l2Q
iii) Po((()3)l3Q
iv) Po((()3)42D)lQ2H
1) ra all possile geometrical isomers of P-t(M)
3)2-y)2l2Q2H ion
1+) Write oxidation statelt coordination numer and electronic
conguration of the metal atom in the folloing complexes
i) rl3-y)3 ii) F 4Pampn)Q
1) lassify the folloing ligands into monodentatelt polydentate
and amidentate
i) 3 ii) iii) iv) v) D2 vi) ethylene diammine
vii) oxalate
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viii) triaminotriethylamine
15) ol3$32D is a pin8 solidlt the solution of this salt is also
pin8 and formed 3mol of gl ith silver nitrate solution Dn
heating pin8 solidlt it loses one ater molecule and forms purplesolid having same ratio of o3l as that of pin8 solid 0he
purple solid hen dissolved in ater and treated ith forms 1 mol
of gl ra the structure and name of the pin8 and purple
solids
27) ame the octahedral complex ions
i) Po2D4) en)2QH ii) transPr)4 3)2Q
21) ra the structures of the folloing complexes
i) Pol4Q2 ii) Pampn3)Q2H iii) P-tlQ iv) iD)4 v) Pi)4Q2
22) (n an octahedral crystal eldlt dra the gure to sho splitting
of dorital
23) What are ea8 eld and strong eld ligands What is spectro
chemical series
24) Pi)4Q2 is diamagnetic hile Pr3)Q3H is paramagnetltexplain
2$) Dn the asis of valence ond theory explain the nature of
onding in the folloing complexes
i) Po6Q3 ii) Po2D4)3Q3
2) lue coloured copper sulphate solution gave folloing
experimental results Explain the same
i) With aCueous potassium chloride it gave right green solution
ii) With aCueous potassium Juoride it gave a green precipitate
2+) ra the structures of optically active isomers of Poen)3Q3H
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2) ra the geometrical and optical isomers of
i) Pol2en)2QH ii) Polen)23)Q2H
25) What is lin8age isomerism Explain ith an example
37) What are hydrate isomers Explain ith examples
31) Explain the structure of
i) upraammonium sulphate ii) Po3)Q3H
32) What are the limitations of valence ond theory
33) Explain the magnetic properties of coordination compounds
34) Write the salient features of crystal eld theory What are itslimitations
3$) Explain the octahedral geometry of complexes using crystal
eld theory
3) Write a note on colours in coordination compounds
3+) Explain the factors aecting the staility of coordination
compound3) Write rief the applications of coordination compounds
HALOGEN DERIVATIVES O ALANES AND ARENES
1) What are al8yl halides o are they classied
2) Write (- names of the folloing compounds
i)
ii) 2Al
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iii)
iv)
v)
vi) secutyl chloride
vii) neopentyl romide
viii) tutyl iodide
ix) isopropyl romide
3) o is ethyl romide prepared from
i) Ethyl alcohol ii) ethane iii) ethane
4)Write the preparation of isopropyl chloride using the folloing
reagents
i) -l3 ii) -l$ iii) l2 iv) l v) Dl2
$) o is group replaced y folloing functional rroups
i) OD ii) O iii) O iv) O2
) Write a note on
i) andmeyerBs reaction ii) Wurt= reaction iii) 6in8elstein reaction
iv) 6ittig reaction v) 6riedel raft reaction
+) (dentify and in the folloing
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) Give the structures of the folloing compounds
i) 3romo2methyl pentane ii) 2romo3ethyl hexane iii) 1
holo utane
iv) pichloroen=ene v) 1lt1lt10richloroethane
5) student has performed an experiment in the laoratory e
mixed ater ith hexane and found to layers separated econd
time he mixed chloroform ith ater and he again found to
layers in the test tue Explain hich ill e upper layer and
hich one ill e loer layer in oth the experiments
17) onvert 1hloroutane into the folloing compounds
i) utane1ol ii) 1(odoutane iii) 3222 iv)
11) 6or each pair of compoundslt state hich compound is etter
2 sustrate
i) 2romoutanelt isopropyl romide ii) 1(odo2lt2dimethyl
propane or isopropyl iodide
12) hoose the memer that ill react faster from the folloing
pairs y 1 mechanism
13) -redict the expected product of sustitution reaction
i) isoutyl chloride mH sodium ethoxide
ii) nutyl chloride H sodium
iii) 1hloro propane H aC potassium hydroxide
iv) aniline H aD2gt l
14) Write the products
i) $22A2 H r L
ii) $A2 H r
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iii)
iv)
v)
1$) (dentify the chiral and achiral molecules
i)
ii)
iii)
1) iscuss 2 mechanism of methyl romide using aCueous
FD ra energy prole diagram1+) Write the mechanism of the reaction hen tutyl chloride is
treated ith aCueous FD ith energy prole diagram
1) ierentiate eteen 1 and 2 mechanism
15) Explain the nature of ond in
i) 322 ii)
27) What are uses of
i) 0 ii) (odoform iii) hloroform iv) aron tetrachloride
21) l8yl halides are polar and miscile ith aterlt explain
22) Which one of the folloing is more easily hydrolysed y
aCueous FD
$l$ and $2l
23) rrange the folloing groups in descending order 2lt D3lt
D3lt DD and l
24) ssign or conguration to each of the folloing
structures
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i)
ii)
iii)
iv)
DDlt -ED E0E
1) What are alcohols o are they classied
2) What are monohydric alcohols o are they classied
4) Write the structures of folloing alcohols
i) 1Ethylcyclohexanol ii) ex3en2ol iii)yclohex2en1ol
iv) -entane1lt4diol
v) 2lt4imethylhexane1lt3lt$triol
$) Explain the folloing
i) -ropan1ol has higher oiling point than nutane
ii) ampethanol is more solule in ater than -ropan1ol
) Write the mechanism of hydration of ethylene to ethyl alcohol
+) -ropan1ol can not e prepared y acid catalyst hydration of
propenelt then ho is propene converted into propan1ol
)5) o is propanone converted into
i) -ropan2ol ii) 2ampethyl propan2ol
17) o ill you otain utan2ol from
8112019 Chemistry Question 12sci (1)
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i) -ropanal ii) utan2one iii) ut2ene
11) o is propan1ol prepared from
i) -ropanal ii) -ropanoic acid
12) o is cyclopentanol prepared from
i) yclopentanone ii) yclopentene
14) Write the mechanism of acid catalysed dehydration of ethanol
to give ethane
1$) Write the structure of aldehyde lt caroxylic acid and ester
that yield folloing alcohol
1+) o ill you prepare
i) 2ampethylutane1ol from an al8ene
ii) cyclohexylmethanol from a Grignard reagent
iii) 1phenylethanol from acetaldehyde
1) o are folloing conversions rought aout
i) en=yl chloride to en=yl alcohol
ii) en=yl alcohol to en=oic acid
iii) 1Ethylcyclohexanol from yclohexanone
15) What are phenols o are they classied
27)21) Give the structures and (- names of isomeric phenols
represented y the molecular formula 17D
22) o is phenol prepared from
8112019 Chemistry Question 12sci (1)
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i) hloroen=ene ii) (sopropyl en=ene iii) en=ene sulphonic
acid iv) aniline
23 ) Explain the folloing
i) -henol is more acidic than phenol
ii) onitrophenol is more acidic than ocresol
iii) pnitrophenol is less volatile than onitrophenol
24) Explain the folloing reactions of phenol
i) FoleBs reaction ii) iemer0iemann reaction
2$) ame the reagents used to convert phenol intoi) picric acid ii) 2lt4lt0riromophenol iii) en=ene iv) ophenol
sulphonic acid
2) What is the action of folloing reagents on phenol i)
romine in 2 at lo temperature
ii) ilute nitric acid at room temperature iii) oncentrated
sulphuric acid at room temperature
2+) Give distinguish test eteen phenol and ethanol
2) What are ethers o are ethers classied
25) What is metamerism Give the structure and (- name of
metamers of 2ampethoxypropane
37) Write the mechanism for acidic dehydration of ethanol
31) o is diethyl ether prepared y continuous ethericationprocess Why is the process so called
32) o ill you prepared methoxyethane from
i) l8yl halide ii) ia=omethane
33) tate the important uses of i) -henol ii) diethyl ether
8112019 Chemistry Question 12sci (1)
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34) Write the mechanism of action of hydrogen romide on tert
utyl methyl ether
3$) Explain the folloing reactions of anisole
i) romination ii) itration iii) 6riedelrafts al8ylation iv)6riedelrafts acylation
3) Explainlt i) 0he OD group attached to aromatic ring in
phenols and ii) 0he al8oxy group in al8yl aryl ethers are ortholt
para directing and activate the aromatic ring toars electrophilic
sustitution
3+) Write the chemical eCuations for Williamson synthesis of 2
Ethoxy2methypentane starting from ethanol and 2ampethylpentan2ol
3) n organic compound ith the formula 417D3 shos
properties of ether and alcohol hen treated ith an excess of
r yields only one compound 1lt2 diromomethane Write
structural formula of ether and that of alcohol
ALDEHYDES ETONES AND CABO$YLIC
ACID
1) Write the structure and give (- names of the folloing
compounds
i) chloropropionaldehyde
ii) Rhydroxyutyraldehyde
iii) isoutyraldehyde
iv) Rmethylvaleraldehyde
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v) isopropyl methyl 8etone
vi) diisopropyl 8etone
vii) mromoen=aldehyde
viii) dien=yl 8etone
ix) divinyl 8etone
x) allyl methyl 8etone
xi) ethyl phenyl 8etone
xii) nutyrophenone
2) Write the structure of folloing compounds
i) 4ampethyl3nitroen=ophenone ii) 2ampethyl4oxopentanal iii)
3Dxopentanoic acid iv) 4chloropropiophenone v) 3
ampethoxyutanal vi) 4ydroxycyclohaxane caraldehyde
3) o ill you prepare i) propiophenone from propanenitrile ii)
4chloroen=aldehyde from 4chlorotoluene iii)
yclohaxanecaraldehyde from cyclohexylmethanol iv) 4
methoxyacetophenone from anisole v) 4methylen=aldehydefrom toluene
4) rrange the folloing compounds in the increasing order of
their oiling points
i) dimethyl etherlt ethyl alcohollt propanelt acetaldehyde
ii) acetonelt npropyl alcohollt ethyl methyl alcohol and nutane
$) What is the action of hydrogen cyanide in asic medium on i)utanone ii) 2lt4dichloroen=aldehyde
) What is the action of folloing compounds on cyclohexanone in
presence of dry hydrogen chloride
i) ethyl alcohol ii) ethylene glycol
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+) Write the structure of product in the folloing reactions
i) 322D3
ii) $2D3
) Write the structures of caronyl compounds and ammonia
derivatives that comine to give folloing imines
i)
ii)
iii)
iv)v)
vi)
5) Write the chemical eCuations for aldol condensation or
anni==aro reaction that folloing compounds undergo
i) -ropanal ii) 2ampethylpropanal iii) -entanal iv) 3
ampethylutanal v) cetophenonevi) pampethoxyen=aldehyde vii) 2ampethylcyclohaxanone viii)
chloral ix) yclopentanone
x) -henyl acetaldehyde xi) 1-henylpropan1one
17) Write the structure of the maKor product of the folloing
crossed aldol condensation
i) formaldehyde and propionaldehydeii) en=aldehyde ith acetone
11) (dentify the compounds SBlt SB and SB in the folloing
reactions and rerite the complete eCuations
i)
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ii)
12)o ill you eect folloing tostep conversions
i) -ropanal into utanone ii) utanone into ut2ene iii)
en=ene into mromoacetophenone iv) ex3yne into exan
3one v) en=oic acid into mnitroen=ylalcohol
13) o ill you convert en=aldehyde into folloing compounds
ampore than one steps may e reCuired
i) en=ophenone ii) en=oic acid iii) 3-henylpropan1ol iv)hydroxyphenylacetic acid
14) Give a chemical test to distinguish eteen folloing pairs of
compounds
i) Ethanal and propanone ii) -rpopanal and propanone iii)
-entane2one and pentane3one
1$) Write the structure and (- names of folloing caroxylicacids
i) ltRdimethylutanoic acid ii) Rphenylutyric acid iii) 1038389
chloromethylvaleric acid
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13) tate aoultBs la and otain expression for loering of
vapour pressure hen nonvolatile solute is dissolved
14) erive the relationship eteen relative loering of vapour
pressure and molar mass of solute1$) What is oiling point of liCuid
1) What is elevation of oiling point
1+) What is molal elevation constant oes it depend on the
nature of the solute
1) erive the relation eteen elevation of oiling point and
molar mass of the solute15) ene free=ing point of liCuid
27) What causes depression in free=ing point
21) ene molal depression constant
22) o molar mass of a nonvolatile solute is related to the
depression in free=ing point erive an eCuation
23) What is osmosis
24) ene semipermeale memrane and osmotic pressure
2$) ene the terms i) (sotonic solution ii) ypertonic solution
iii) ypotonic solution
2) tate i) vant ooyles la ii) vant oharles la
2+) erive vant o eCuation for osmotic pressure of a solution
2) o molar mass of a solute is determined from osmotic
pressure measurements
25) Explain anormal osmotic pressure
37) tate vant ovogadroBs la
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31) Explain
i) normal molecular masses
ii) vant o factor
32) erive the eCuations
i) A
ii) A
PROBLEMS
1) 342g of glucose is dissolved in 477g of ater alculate
percentage y mass of glucose solution
2) solution is prepared y dissolving certain amount of solute in
$77g of ater 0he percentage y mass of a solute in solution is
23 alculate mass of solute
3)4cm3 of methyl alcohol is dissolved in 2$2g of ater
alculatelt i) percentage y mass of methyl alcohol ii) ampole
fraction of methyl alcohol and ater Given density of methyl
alcohol A 7+5$2ggtcm3 and A12lt A1 and DA1)
4) 12cm3 of en=ene is dissolved in 1cm3 of xylene alculate
y volume of en=ene
$) alculate mole fraction of l in solution of l containing
24 of l y massA1lt lA3$$)
) alculate mole fraction of solute in its 2 molal aCueous
solution
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+) alculate the mole fractionlt molality and molarity of D3 in a
solution containing 122 D3 Given density of
D3A173ggtcm3lt A1lt A14lt DA1
) ulphuric acid is 5$ y mass alculate mole fraction andmolarity of 2D4 of density 151ggtcm3
5) Cueous solution of aD is mar8ed 17gt) 0he density of
the solution is 17+7ggtcm3
alculatelt
i) molarity ii) molality and iii) mole fraction of aD and ater
aA23lt A1 and DA1
17) attery acid is 422amp aCueous 2D4 solutionlt and has density
of 121ggtcm3 What is the molality of 2D4 A1lt A32lt DA1
11) 0he vapour pressure of 21 solution of a nonelectrolyte in
ater at 177 is +$$mm g alculate the molar mass of the
solute
12) 0he vapour pressure of ater at 27 is 1+mm g alculate
the vapour pressure of a solution containing 2g of
urea2D2) in $7g of ater A14lt A12lt A1
13) (n an experimentlt 174g of mannitol ere dissolved in 177g
of ater 0he vapour pressure of ater as loered y 7375mm
g from 1+$3$mm g alculate the molar mass of mannitol
14) solution containing 7$12g of naphthalene molar mass A
121+ggtmol) in $7g of l4 gives a oiling point elevation of
7472F While a solution of 721g of un8non solute in the
same mass of the solvent gives a oiling point elevation of 74+F
6ind the molar mass of the un8non solute
F for l4A $73F 8g mol1 of solvent)
8112019 Chemistry Question 12sci (1)
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1$) alculate the mass in grams of an impurity of molar mass
177gmol1 hich ould e reCuired to raise the oiling point of
$7g of chloroform y737F
F for chloroformA 33F 8g mol
1
)1) oiling point of a solvent is 72 When 7415g of the solute
of molar mass 2$24g mol1 as dissolved in +$g of the solventlt
the oiling point of the solution as found to e 72$ 6ind
the molal elevation constant
1+) 7ml of glacial acetic acid ith density 17gm 1 is
dissolved in 18g ater and the solution fro=e at 7727$
alculate vant o factor and F f for ater is1F 8g mol1
1) enryBs la constant for soluility of methane in en=ene is
42+ 17$mm g at constant temperature alculate the
soluility of methane at +7mm g pressure at same
temperature
CHEMICAL THERMODYNAMICS AND ENERGIES
Theory
1)ene the terms systemlt surroundinglt open systemlt close
systemlt isolated systemlt exothermic reactionslt endothermic
reactionslt extensive properties and intensive properties
2) Explain the term state function Give to examples of state
functions and to example of path function
3) Explain thermodynamics eCuilirium
4) istinguish eteen isothermal and adiaatic process
$) What is a reversile process What are its features
) ho that pressure times volume is eCual to or8
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+) erive the expression for or8 hen a gas expands against
constant external pressure
) lassify the folloing reactions according to or8 done y the
systemlt on the system and no or8 done if pressure is constanta) 2g) H l2g) 2lg)
) 3D2g) 2D3g)
c) 2D2g) D2g)H 2D3g)
d) ampgD3s) H ampgDs) D2g)
e) 4D3s) H 2Dg) 22Dg)
5) What is the dierence dierence eteen and What is
the sign of for exothermic and endothermic reactions nder
hat circumstances
17) What are the sign convention for C and W
11) Explain the concept of maximum or8
12) free expansion of a gas results into no or8 Explain
13) erive the expression for maximum or8
14) ene enthalpy t constant pressure sho that A
1$) (t is di9cult to calculate lt hoever can e easily
determined Why Explain giving examples
1) tate rst la of thermodynamics Iustify its mathematical
eCuation
1+) Dtain the relationship eteen and for a chemical
reaction
1) What is the expression for or8 done in a chemical reaction
Explain the meaning of each term
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8112019 Chemistry Question 12sci (1)
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a) dissolution of sugar in hot coee
) separation of r and Fr from their mixture
c) spreading of fragrance hen a ottle of perfume is opened
d) Jo of heat from cold oKect to hot oKect
e) heat transfer from ice to room at 2$
37) ene entropy Give its units What does entropy measures
31)Explain ho entropy changes in the folloing processes
a) free=ing of liCuid
) sulimation of solid
c) dissolving of ater in sugar
d) condensation of vapour
32) Which memer of the folloing pairs have larger entropy
Why
a) D2s) or D2g)
) 3Dl) or 2$D2$l)
c) Dg) or 2D4g)
d) eg) or Frg)
e) as) or als)
33) Why is it more convenience to predict spontaneity of reaction
in terms of Gsys rather than total34) ene Gis energy and change in Gis energy What are
the units of Gis energy
3$) tate second la of thermodynamics in terms of entropy and
express it mathematically
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3) tate third la of thermodynamics What is its usefulness
3+) Why is it impossile for any sustance to have an asolute
entropy =ero at temperature greater than 7F
3) (t is impossile for a reaction to e spontaneous yetexothermic Explain ith example
35) (s it possile for a reaction to e nonspontaneous yet
exothermic Explain ith example
47) -redict the sign of in the folloing process Give reasons
for your anser
a) 2D4g) 2D2g)) 6e2D3s) H 32g) 26es) H 32Dg)
c) 2g) H 32g) 23g)
d) ampgD3s) 23g)
e) D2g) D2s)
f) l2g) 2lg)
41) What can e said aout the spontaneity of reactions hen
a) and are oth positive
) and oth are negative
c) is positive and is negative
d) is negative and is positive
42) (dentify hich memer of the folloing pairs has largerentropy Why
a) eg) in a volume of 1 or eg) in a volume of $ oth at 2$
) D2g) at 1atm or D2g) at 17atm oth at the same temperature
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c) 2$Dl) or 2$Dg)
d) $ moles of e or 2 moles of e
43) What are the signs of for the folloing reaction
Explain ith reasons
2g) 2g)
44) erive the relationship eteen G and total
4$) Iustify the inclusion of Crev and 0 in the denition of entropylt
A Crevgt 0
4) 0he increase in entropy of a system alone does not guarantee
the spontaneity of a process Explain
4+) 0he criterion of spontaneity in terms of Gis energy is the
same as that laid don y second la of thermodynamic o
PROBLEMS
1) 0hree moles of an ideal gas are expanded isothermally from a
volume of 377cm3 to 2$ at 377F against a pressure of 15atm
alculate the or8 done in atm and Koules2) Dne mole of an ideal gas is compressed from $77cm3 against a
constant pressure of 121 17$-a 0he or8 involved in the
process is 3$7I alculate the nal volume
3) alculate the maximum or8 hen 24g of oxygen are
expanded isothermally and reversily from a pressure of 1
17$-a to 1778-a at 25F
4) 0hree moles of an ideal gas are compressed isothermally andreversily to a volume of 2 0he or8 done is 2538I at 22
alculate the initial volume of a gas
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$) 2 172 8g of nitrogen is expanded isothermally and
reversily at 377F from 1$1$ 17$ m 2 hen the or8 done is
found to e 1+338 I 6ind the nal pressure
) sample of a gas asors 47778I of heata) if volume remains constantlt hat is
) uppose that in addition to asorption of heat y the samplelt
the surrounding does 27778I of or8 on the samplelt hat is
c) uppose that as the original sample asors heatlt it expands
against atmospheric pressure and does 778 I of or8 on its
surroundings What is
+) alculate the or8 done in each of the folloing reactions
tate hether or8 is done on or y the system
a) 0he oxidation of one mole of D2 at $7
2D2g) H D2g) 2D3g)
) decomposition of 2 moles of 4D3 at 177
4D3s) 2Dg) H 22Dg)
) 0he enthalpy change for the reaction
24g) H 2g) 2g) is 27I hen 177m of ethylene and
177m of 2 react at 1atm pressure alculate the pressure
volume or8 and
5) alculate standard enthalpy of the reaction
6e2D3s) H 3Dg) 26es) H 3D2g) from the folloing data
f 76e2D3)A2428Imol1ltf 7D)A117$8Imol1lt
f 7D2)A353$8Imol1
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8112019 Chemistry Question 12sci (1)
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Electro chemitry
Theory
1ene the terms resistivitylt conductivity and molar
conductivity Give its ( units
2Explain the terms conductivity and molar conductivity o are
they interrelated
3Why does conductivity of s solution decrease on dilution of a
solution
4o does molar conductivity of an electrolyte vary ith
concentration
$o does the variation in molar conductivity of an electrolyte
ith concentration diers for strong and ea8 electrolytes
Explain the dierent ehaviour of strong and ea8 electrolytes
toards the variation of conductivity ith concentration
+tate and explain Fohlrausch la of independent migration of
ions o it is useful to determine the molar conductivity of ea8
electrolytes at =ero concentration
o is the molar conductivity of strong electrolytes at =ero
concentration determined y graphical method Why is this
method not useful for ea8 electrolytes
5What is cell constant What is its unit o is it determined
17ene anode and cathode
11 Why is cathode in electrolytic cell considered to e negative
and anode positive
12 -redict the half cell reactions that occur hen fused Fl is
electroly=ed in a cell ith inert electrodes What is the overall cell
reaction
8112019 Chemistry Question 12sci (1)
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13 tate 6aradayBs las of electrolysis
14o ill you calculate the numer of moles of electrons
actually passed and mass of the sustance produced during
electrolysis of a salt solution using reaction stoichiometry1$o many electrons ill have a total charge of 1 coulom
1 o many faradayBs ould e reCuired to plate out 177 mole
of free metal from the folloing cations
a) ampg2H
) r3H
c) -2H
d) uH
1+ ene coulom and faraday
1 escrie the electrolysis of molten al using inert
electrodes
15 What is the dierence eteen electrolytic cell and voltaic
cell
27 Why is anode in galvanic cell considered to e negative and
cathode positive electrode
21 8etch the cell for the electrolysis of molten al (ndicate
cathodelt anode and their signs ho the Jo of electrons and
ions
22 What is salt ridge What are its functions in galvanic cell
23 What are the conventions used to rite cell diagramcell
formula)
24 escrie the construction of aniel cell Write electrode half
reactions and net cell reaction in aniel cell
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2$ escrie the folloing types of electrodes giving one
examplelt ith reference to formulationlt electrode reaction and
ernst eCuation for electrode potential
a) metalsparingly salt electrode) gas electrode
2 What is redox electrode Give one example ith formulationlt
electrode reaction and ernst eCuation for electrode potential
2+ ene the terms oxidation potentiallt reduction potential and
cell potential
2 What conditions are reCuired for a cell potential to e calledstandard cell potential
25 6ormulate a cell for each of the folloing electrode reactions
a) n2H aC) H 2gl s) L n4H aC) H 2gs) H2l aC)
) ampg s) H r2l) L ampg2H aC) H 2r aC)
37 6ormulate a cell from the folloing electrode reactions
a) l2g) H 2e L 2l aC)
) 2( aC) L (2s) H 2e
31 What are standard electrode potential and standard emf of
the galvanic cell
32 Write ernst eCuation and explain the terms involved in it
What part of the eCuation represents the correction factor for
nonstandard state conditions
33 Write ernst eCuation for the folloing reactions
a) rs) H 36e3H aC) L r3H aC) H 36e2H aC)
) l3H aC) H 3e L l s)
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34 onsider the folloing E7 values and half reactions
(2s) H 2e L 2( aC) E7A7$3$M
u2H aC) H 2e L u s) E7A733+M
d2H aC) H 2e L ds) E7A77473
a) Which of the metals or nonmetals or ions is the strongest
oxidi=ing agent and hich is the strongest reducing agent
) 0he half reactions can e used to construct three galvanic
cells Which ill have the highest cell potential
3$ -redict hether
a) gH can oxidi=e - to -2H under standard state condition
) E7gA7+55M and E7
-A712M
3 -redict hether the folloing reactions occur under standard
state conditions
a) Dxidation of gs) y l2g) E7gA7Mlt E7
l2A13M
) eduction of 6e
3H
to 6e
2H
y us) E
7
6e3Hlt 6e2H A 7++MltE7uA14M
3+ 8etch and descrie the operation of
a) dry cell
) 2D2 fuel cell
3 What are the advantages and disadvantages of fuel cells
35 8etch lead storage cell
47 Write electrode reaction and overall cell reaction during the
operation of lead storage cell
41 Write electrode reaction and overall cell reaction hen lead
accumulator ehaves as an electrolytic cell
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42 o can ernst eCuation e used to sho that electrode
potential is eCual to the standard electrode potential y putting
approximate values in ernst eCuation se u2HNd half cell for
illustration
43 o are G7lt E7cell and eCuilirium constant related for a
particular reaction
44 Why is eCuilirium constant related to E7cell and not Ecell
4$ G7 for a redox reaction depends on the numer of electrons
transferred Explain
4 o does the eCuiliriumlt G7An6E7 explain that an
electrical potential is an intensive property
4+ Write shorthand notation for the cell for each of the folloing
reactions
a) u2H aC) H 2gs) H 2r L u s) H 2gr s)
) n2H aC) is oxidi=ed y r2 l)
4 rrange the folloing reducing agents in order of increasing
strength under standard state conditions 0he standard potentialsfor the reduction half reactions are given
gH aC) 7M)lt l3H aC) 1M)lt 62g) 2+M)lt l2g) 13M)lt
(2s) 7$4M)lt d2H aC) 74M)
45 rrange the folloing oxidi=ing agents in order of increasing
strength under standard state conditions 0he standard potentials
for the reduction half reactions are given
ls) 1M)lt l aC) 13M)lt us) 734M)lt 6es)744M)lt r
aC) 175M)lt is) 72M)
$7 Which species in each of the folloing pairs is etter oxidi=ing
agent under standard state conditions standard potential are
given) Give reasons for your anser
8112019 Chemistry Question 12sci (1)
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a) r2l) 175M) or u3H 14M)
) H aC) or gH aC) 7M)
c) -2H aC) 713M) or o2H 72M)
d) l2 g) 13M) or r3H 7+4M)
$1 Which species in each of the folloing pairs is etter reducing
agent under standard conditions E7 values are given Give
reasons for your anser
a) Fs) 2353M) or ampgs) 23M)
) o2H aC) 11M) or (n s) 714M)
c) e3H aC) 11M) or 0i2H73+M)
d) gl) 7M) or is) 723M)
PROBLEMS
1 conductivity cell lled ith 771amp Fl given at 2$o the
resistance of 74ohms 0he conductivity of Fl at 2$
o
is 7777
CHEMISTRY
d f O DF EEampE0
1) What are dloc8 elements
8112019 Chemistry Question 12sci (1)
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2) What are floc8 elements
3) Explain the meaning of
i) 0ransition series ii) (nner transition element
4) Explain the position of the folloing in periodic tale
i) dloc8 elements ii) anthanoids iii) ctinoids
$) Explain the oxidation state of 1st ro elements of transition
series
) Explain the oxidation states of lanthanoids and actinoids
+) Why do lanthanoids form coloured compounds ) Explainlt most of the transition metal compounds are
remar8aly coloured
5) Why chromium has electronic conguration 3d$ 4s1 and not 3d4
4s2
17) Why does copper sho anormal electronic conguration
11) Explainlt the trends in atomic and ionic si=es of lanthanoidsand also of 1st ro elements of transition series
12) What are actinoids
13) What are transuranic elements Write their name
14) Why transition elements sho tendency to form large numer
of complexes
1$) Explain the compounds of copper ((() are coloured ut thoseof =inc are colourless
1) o is potassium dichromate prepared from chrome ion
1+) Write the preparationlt properties and use of potassium
permanganate
8112019 Chemistry Question 12sci (1)
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1) Explainlt hy -t(M) complexes are generally octahedral hile
-t(() complexes are sCuare planar
15) ierentiate eteen lanthanoids and actinoids
27) What are chemical tins Give examples
21) Explain hy Gd3H is colourless
COORDINATION COMPOUNDS
1) What is the dierence eteen doule salt and coordinationcompounds
2) Explainlt hy 6e4)2 D4)22D) is a salt ut F 4P6e)Q is a
complex compound
3) Write the formula of the folloing complexes
i) alcium hexa cyano ferrate (()
ii) iammine dichloro platinum
iii) is ethylene diammine) dichloro iridium ((() ion
iv) -entamine caronato chromium ((() D(E
v) 0risethylene diammine ) coalt((() sulphate
vi) iamine ethylene diammine nic8el (() acetate
4) Write the rules hich are applied hile riting the formulas of
coordination compounds
$) ene the terms
i) entral metal atomgtion
ii) igand
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iii) oordination compound
iv) oordination sphere
v) oordination numer
vi) oordination polyhedral
vii) omoleptic and heteroleptic complexes
viii) harge on the complexes
ix) oordination entity
) Write (- name of the folloing complexes
i) Pr2D)4 l2QD3
ii) P-ten)l4Q
iii) F 2Pi)4Q
iv) sP6el4Q
v) rl3-y)3
vi) F 3Po2D4)3Q
vii) Por2en)2Q
viii) P-tl4Q2
ix) Po2D))en)2Q2H
x) F 3Pl2D4)3Q
+) Explain the importance of principles of additive nomenclature
) (dentify the folloing ions y a simple test forming complex
compound
i) u2H ii) i2H iii) 6e3H iv) o2H
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5) Dn the asis of WernerBs theory explainlt hy coalt amine
complexlt ol343 hen treated ith gD3 solution
precipitates only one ion even though there are three ions
17) alculate the eective atomic numer E) of the centralmetal atom in the folloing compounds
i) F 3P6e)Q ii) rD)
11) Write the postulates of WernerBs theory
12) Explain the onding in ol333 and ol3$3
13) Explain stereoisomerism in metal complexes ith coordination
numer 4 and 14) Why the tetrahedral complexes do not exhiit geometrical
isomerism
1$) ra cis and trans geometrical isomers of
i) dichlororomo iodo palladium (() ion
ii) P-t(()3)2l2Q
iii) Po((()3)l3Q
iv) Po((()3)42D)lQ2H
1) ra all possile geometrical isomers of P-t(M)
3)2-y)2l2Q2H ion
1+) Write oxidation statelt coordination numer and electronic
conguration of the metal atom in the folloing complexes
i) rl3-y)3 ii) F 4Pampn)Q
1) lassify the folloing ligands into monodentatelt polydentate
and amidentate
i) 3 ii) iii) iv) v) D2 vi) ethylene diammine
vii) oxalate
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viii) triaminotriethylamine
15) ol3$32D is a pin8 solidlt the solution of this salt is also
pin8 and formed 3mol of gl ith silver nitrate solution Dn
heating pin8 solidlt it loses one ater molecule and forms purplesolid having same ratio of o3l as that of pin8 solid 0he
purple solid hen dissolved in ater and treated ith forms 1 mol
of gl ra the structure and name of the pin8 and purple
solids
27) ame the octahedral complex ions
i) Po2D4) en)2QH ii) transPr)4 3)2Q
21) ra the structures of the folloing complexes
i) Pol4Q2 ii) Pampn3)Q2H iii) P-tlQ iv) iD)4 v) Pi)4Q2
22) (n an octahedral crystal eldlt dra the gure to sho splitting
of dorital
23) What are ea8 eld and strong eld ligands What is spectro
chemical series
24) Pi)4Q2 is diamagnetic hile Pr3)Q3H is paramagnetltexplain
2$) Dn the asis of valence ond theory explain the nature of
onding in the folloing complexes
i) Po6Q3 ii) Po2D4)3Q3
2) lue coloured copper sulphate solution gave folloing
experimental results Explain the same
i) With aCueous potassium chloride it gave right green solution
ii) With aCueous potassium Juoride it gave a green precipitate
2+) ra the structures of optically active isomers of Poen)3Q3H
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2) ra the geometrical and optical isomers of
i) Pol2en)2QH ii) Polen)23)Q2H
25) What is lin8age isomerism Explain ith an example
37) What are hydrate isomers Explain ith examples
31) Explain the structure of
i) upraammonium sulphate ii) Po3)Q3H
32) What are the limitations of valence ond theory
33) Explain the magnetic properties of coordination compounds
34) Write the salient features of crystal eld theory What are itslimitations
3$) Explain the octahedral geometry of complexes using crystal
eld theory
3) Write a note on colours in coordination compounds
3+) Explain the factors aecting the staility of coordination
compound3) Write rief the applications of coordination compounds
HALOGEN DERIVATIVES O ALANES AND ARENES
1) What are al8yl halides o are they classied
2) Write (- names of the folloing compounds
i)
ii) 2Al
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iii)
iv)
v)
vi) secutyl chloride
vii) neopentyl romide
viii) tutyl iodide
ix) isopropyl romide
3) o is ethyl romide prepared from
i) Ethyl alcohol ii) ethane iii) ethane
4)Write the preparation of isopropyl chloride using the folloing
reagents
i) -l3 ii) -l$ iii) l2 iv) l v) Dl2
$) o is group replaced y folloing functional rroups
i) OD ii) O iii) O iv) O2
) Write a note on
i) andmeyerBs reaction ii) Wurt= reaction iii) 6in8elstein reaction
iv) 6ittig reaction v) 6riedel raft reaction
+) (dentify and in the folloing
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) Give the structures of the folloing compounds
i) 3romo2methyl pentane ii) 2romo3ethyl hexane iii) 1
holo utane
iv) pichloroen=ene v) 1lt1lt10richloroethane
5) student has performed an experiment in the laoratory e
mixed ater ith hexane and found to layers separated econd
time he mixed chloroform ith ater and he again found to
layers in the test tue Explain hich ill e upper layer and
hich one ill e loer layer in oth the experiments
17) onvert 1hloroutane into the folloing compounds
i) utane1ol ii) 1(odoutane iii) 3222 iv)
11) 6or each pair of compoundslt state hich compound is etter
2 sustrate
i) 2romoutanelt isopropyl romide ii) 1(odo2lt2dimethyl
propane or isopropyl iodide
12) hoose the memer that ill react faster from the folloing
pairs y 1 mechanism
13) -redict the expected product of sustitution reaction
i) isoutyl chloride mH sodium ethoxide
ii) nutyl chloride H sodium
iii) 1hloro propane H aC potassium hydroxide
iv) aniline H aD2gt l
14) Write the products
i) $22A2 H r L
ii) $A2 H r
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iii)
iv)
v)
1$) (dentify the chiral and achiral molecules
i)
ii)
iii)
1) iscuss 2 mechanism of methyl romide using aCueous
FD ra energy prole diagram1+) Write the mechanism of the reaction hen tutyl chloride is
treated ith aCueous FD ith energy prole diagram
1) ierentiate eteen 1 and 2 mechanism
15) Explain the nature of ond in
i) 322 ii)
27) What are uses of
i) 0 ii) (odoform iii) hloroform iv) aron tetrachloride
21) l8yl halides are polar and miscile ith aterlt explain
22) Which one of the folloing is more easily hydrolysed y
aCueous FD
$l$ and $2l
23) rrange the folloing groups in descending order 2lt D3lt
D3lt DD and l
24) ssign or conguration to each of the folloing
structures
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i)
ii)
iii)
iv)
DDlt -ED E0E
1) What are alcohols o are they classied
2) What are monohydric alcohols o are they classied
4) Write the structures of folloing alcohols
i) 1Ethylcyclohexanol ii) ex3en2ol iii)yclohex2en1ol
iv) -entane1lt4diol
v) 2lt4imethylhexane1lt3lt$triol
$) Explain the folloing
i) -ropan1ol has higher oiling point than nutane
ii) ampethanol is more solule in ater than -ropan1ol
) Write the mechanism of hydration of ethylene to ethyl alcohol
+) -ropan1ol can not e prepared y acid catalyst hydration of
propenelt then ho is propene converted into propan1ol
)5) o is propanone converted into
i) -ropan2ol ii) 2ampethyl propan2ol
17) o ill you otain utan2ol from
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i) -ropanal ii) utan2one iii) ut2ene
11) o is propan1ol prepared from
i) -ropanal ii) -ropanoic acid
12) o is cyclopentanol prepared from
i) yclopentanone ii) yclopentene
14) Write the mechanism of acid catalysed dehydration of ethanol
to give ethane
1$) Write the structure of aldehyde lt caroxylic acid and ester
that yield folloing alcohol
1+) o ill you prepare
i) 2ampethylutane1ol from an al8ene
ii) cyclohexylmethanol from a Grignard reagent
iii) 1phenylethanol from acetaldehyde
1) o are folloing conversions rought aout
i) en=yl chloride to en=yl alcohol
ii) en=yl alcohol to en=oic acid
iii) 1Ethylcyclohexanol from yclohexanone
15) What are phenols o are they classied
27)21) Give the structures and (- names of isomeric phenols
represented y the molecular formula 17D
22) o is phenol prepared from
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i) hloroen=ene ii) (sopropyl en=ene iii) en=ene sulphonic
acid iv) aniline
23 ) Explain the folloing
i) -henol is more acidic than phenol
ii) onitrophenol is more acidic than ocresol
iii) pnitrophenol is less volatile than onitrophenol
24) Explain the folloing reactions of phenol
i) FoleBs reaction ii) iemer0iemann reaction
2$) ame the reagents used to convert phenol intoi) picric acid ii) 2lt4lt0riromophenol iii) en=ene iv) ophenol
sulphonic acid
2) What is the action of folloing reagents on phenol i)
romine in 2 at lo temperature
ii) ilute nitric acid at room temperature iii) oncentrated
sulphuric acid at room temperature
2+) Give distinguish test eteen phenol and ethanol
2) What are ethers o are ethers classied
25) What is metamerism Give the structure and (- name of
metamers of 2ampethoxypropane
37) Write the mechanism for acidic dehydration of ethanol
31) o is diethyl ether prepared y continuous ethericationprocess Why is the process so called
32) o ill you prepared methoxyethane from
i) l8yl halide ii) ia=omethane
33) tate the important uses of i) -henol ii) diethyl ether
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34) Write the mechanism of action of hydrogen romide on tert
utyl methyl ether
3$) Explain the folloing reactions of anisole
i) romination ii) itration iii) 6riedelrafts al8ylation iv)6riedelrafts acylation
3) Explainlt i) 0he OD group attached to aromatic ring in
phenols and ii) 0he al8oxy group in al8yl aryl ethers are ortholt
para directing and activate the aromatic ring toars electrophilic
sustitution
3+) Write the chemical eCuations for Williamson synthesis of 2
Ethoxy2methypentane starting from ethanol and 2ampethylpentan2ol
3) n organic compound ith the formula 417D3 shos
properties of ether and alcohol hen treated ith an excess of
r yields only one compound 1lt2 diromomethane Write
structural formula of ether and that of alcohol
ALDEHYDES ETONES AND CABO$YLIC
ACID
1) Write the structure and give (- names of the folloing
compounds
i) chloropropionaldehyde
ii) Rhydroxyutyraldehyde
iii) isoutyraldehyde
iv) Rmethylvaleraldehyde
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v) isopropyl methyl 8etone
vi) diisopropyl 8etone
vii) mromoen=aldehyde
viii) dien=yl 8etone
ix) divinyl 8etone
x) allyl methyl 8etone
xi) ethyl phenyl 8etone
xii) nutyrophenone
2) Write the structure of folloing compounds
i) 4ampethyl3nitroen=ophenone ii) 2ampethyl4oxopentanal iii)
3Dxopentanoic acid iv) 4chloropropiophenone v) 3
ampethoxyutanal vi) 4ydroxycyclohaxane caraldehyde
3) o ill you prepare i) propiophenone from propanenitrile ii)
4chloroen=aldehyde from 4chlorotoluene iii)
yclohaxanecaraldehyde from cyclohexylmethanol iv) 4
methoxyacetophenone from anisole v) 4methylen=aldehydefrom toluene
4) rrange the folloing compounds in the increasing order of
their oiling points
i) dimethyl etherlt ethyl alcohollt propanelt acetaldehyde
ii) acetonelt npropyl alcohollt ethyl methyl alcohol and nutane
$) What is the action of hydrogen cyanide in asic medium on i)utanone ii) 2lt4dichloroen=aldehyde
) What is the action of folloing compounds on cyclohexanone in
presence of dry hydrogen chloride
i) ethyl alcohol ii) ethylene glycol
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+) Write the structure of product in the folloing reactions
i) 322D3
ii) $2D3
) Write the structures of caronyl compounds and ammonia
derivatives that comine to give folloing imines
i)
ii)
iii)
iv)v)
vi)
5) Write the chemical eCuations for aldol condensation or
anni==aro reaction that folloing compounds undergo
i) -ropanal ii) 2ampethylpropanal iii) -entanal iv) 3
ampethylutanal v) cetophenonevi) pampethoxyen=aldehyde vii) 2ampethylcyclohaxanone viii)
chloral ix) yclopentanone
x) -henyl acetaldehyde xi) 1-henylpropan1one
17) Write the structure of the maKor product of the folloing
crossed aldol condensation
i) formaldehyde and propionaldehydeii) en=aldehyde ith acetone
11) (dentify the compounds SBlt SB and SB in the folloing
reactions and rerite the complete eCuations
i)
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ii)
12)o ill you eect folloing tostep conversions
i) -ropanal into utanone ii) utanone into ut2ene iii)
en=ene into mromoacetophenone iv) ex3yne into exan
3one v) en=oic acid into mnitroen=ylalcohol
13) o ill you convert en=aldehyde into folloing compounds
ampore than one steps may e reCuired
i) en=ophenone ii) en=oic acid iii) 3-henylpropan1ol iv)hydroxyphenylacetic acid
14) Give a chemical test to distinguish eteen folloing pairs of
compounds
i) Ethanal and propanone ii) -rpopanal and propanone iii)
-entane2one and pentane3one
1$) Write the structure and (- names of folloing caroxylicacids
i) ltRdimethylutanoic acid ii) Rphenylutyric acid iii) 1038389
chloromethylvaleric acid
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31) Explain
i) normal molecular masses
ii) vant o factor
32) erive the eCuations
i) A
ii) A
PROBLEMS
1) 342g of glucose is dissolved in 477g of ater alculate
percentage y mass of glucose solution
2) solution is prepared y dissolving certain amount of solute in
$77g of ater 0he percentage y mass of a solute in solution is
23 alculate mass of solute
3)4cm3 of methyl alcohol is dissolved in 2$2g of ater
alculatelt i) percentage y mass of methyl alcohol ii) ampole
fraction of methyl alcohol and ater Given density of methyl
alcohol A 7+5$2ggtcm3 and A12lt A1 and DA1)
4) 12cm3 of en=ene is dissolved in 1cm3 of xylene alculate
y volume of en=ene
$) alculate mole fraction of l in solution of l containing
24 of l y massA1lt lA3$$)
) alculate mole fraction of solute in its 2 molal aCueous
solution
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+) alculate the mole fractionlt molality and molarity of D3 in a
solution containing 122 D3 Given density of
D3A173ggtcm3lt A1lt A14lt DA1
) ulphuric acid is 5$ y mass alculate mole fraction andmolarity of 2D4 of density 151ggtcm3
5) Cueous solution of aD is mar8ed 17gt) 0he density of
the solution is 17+7ggtcm3
alculatelt
i) molarity ii) molality and iii) mole fraction of aD and ater
aA23lt A1 and DA1
17) attery acid is 422amp aCueous 2D4 solutionlt and has density
of 121ggtcm3 What is the molality of 2D4 A1lt A32lt DA1
11) 0he vapour pressure of 21 solution of a nonelectrolyte in
ater at 177 is +$$mm g alculate the molar mass of the
solute
12) 0he vapour pressure of ater at 27 is 1+mm g alculate
the vapour pressure of a solution containing 2g of
urea2D2) in $7g of ater A14lt A12lt A1
13) (n an experimentlt 174g of mannitol ere dissolved in 177g
of ater 0he vapour pressure of ater as loered y 7375mm
g from 1+$3$mm g alculate the molar mass of mannitol
14) solution containing 7$12g of naphthalene molar mass A
121+ggtmol) in $7g of l4 gives a oiling point elevation of
7472F While a solution of 721g of un8non solute in the
same mass of the solvent gives a oiling point elevation of 74+F
6ind the molar mass of the un8non solute
F for l4A $73F 8g mol1 of solvent)
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1$) alculate the mass in grams of an impurity of molar mass
177gmol1 hich ould e reCuired to raise the oiling point of
$7g of chloroform y737F
F for chloroformA 33F 8g mol
1
)1) oiling point of a solvent is 72 When 7415g of the solute
of molar mass 2$24g mol1 as dissolved in +$g of the solventlt
the oiling point of the solution as found to e 72$ 6ind
the molal elevation constant
1+) 7ml of glacial acetic acid ith density 17gm 1 is
dissolved in 18g ater and the solution fro=e at 7727$
alculate vant o factor and F f for ater is1F 8g mol1
1) enryBs la constant for soluility of methane in en=ene is
42+ 17$mm g at constant temperature alculate the
soluility of methane at +7mm g pressure at same
temperature
CHEMICAL THERMODYNAMICS AND ENERGIES
Theory
1)ene the terms systemlt surroundinglt open systemlt close
systemlt isolated systemlt exothermic reactionslt endothermic
reactionslt extensive properties and intensive properties
2) Explain the term state function Give to examples of state
functions and to example of path function
3) Explain thermodynamics eCuilirium
4) istinguish eteen isothermal and adiaatic process
$) What is a reversile process What are its features
) ho that pressure times volume is eCual to or8
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+) erive the expression for or8 hen a gas expands against
constant external pressure
) lassify the folloing reactions according to or8 done y the
systemlt on the system and no or8 done if pressure is constanta) 2g) H l2g) 2lg)
) 3D2g) 2D3g)
c) 2D2g) D2g)H 2D3g)
d) ampgD3s) H ampgDs) D2g)
e) 4D3s) H 2Dg) 22Dg)
5) What is the dierence dierence eteen and What is
the sign of for exothermic and endothermic reactions nder
hat circumstances
17) What are the sign convention for C and W
11) Explain the concept of maximum or8
12) free expansion of a gas results into no or8 Explain
13) erive the expression for maximum or8
14) ene enthalpy t constant pressure sho that A
1$) (t is di9cult to calculate lt hoever can e easily
determined Why Explain giving examples
1) tate rst la of thermodynamics Iustify its mathematical
eCuation
1+) Dtain the relationship eteen and for a chemical
reaction
1) What is the expression for or8 done in a chemical reaction
Explain the meaning of each term
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a) dissolution of sugar in hot coee
) separation of r and Fr from their mixture
c) spreading of fragrance hen a ottle of perfume is opened
d) Jo of heat from cold oKect to hot oKect
e) heat transfer from ice to room at 2$
37) ene entropy Give its units What does entropy measures
31)Explain ho entropy changes in the folloing processes
a) free=ing of liCuid
) sulimation of solid
c) dissolving of ater in sugar
d) condensation of vapour
32) Which memer of the folloing pairs have larger entropy
Why
a) D2s) or D2g)
) 3Dl) or 2$D2$l)
c) Dg) or 2D4g)
d) eg) or Frg)
e) as) or als)
33) Why is it more convenience to predict spontaneity of reaction
in terms of Gsys rather than total34) ene Gis energy and change in Gis energy What are
the units of Gis energy
3$) tate second la of thermodynamics in terms of entropy and
express it mathematically
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3) tate third la of thermodynamics What is its usefulness
3+) Why is it impossile for any sustance to have an asolute
entropy =ero at temperature greater than 7F
3) (t is impossile for a reaction to e spontaneous yetexothermic Explain ith example
35) (s it possile for a reaction to e nonspontaneous yet
exothermic Explain ith example
47) -redict the sign of in the folloing process Give reasons
for your anser
a) 2D4g) 2D2g)) 6e2D3s) H 32g) 26es) H 32Dg)
c) 2g) H 32g) 23g)
d) ampgD3s) 23g)
e) D2g) D2s)
f) l2g) 2lg)
41) What can e said aout the spontaneity of reactions hen
a) and are oth positive
) and oth are negative
c) is positive and is negative
d) is negative and is positive
42) (dentify hich memer of the folloing pairs has largerentropy Why
a) eg) in a volume of 1 or eg) in a volume of $ oth at 2$
) D2g) at 1atm or D2g) at 17atm oth at the same temperature
8112019 Chemistry Question 12sci (1)
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c) 2$Dl) or 2$Dg)
d) $ moles of e or 2 moles of e
43) What are the signs of for the folloing reaction
Explain ith reasons
2g) 2g)
44) erive the relationship eteen G and total
4$) Iustify the inclusion of Crev and 0 in the denition of entropylt
A Crevgt 0
4) 0he increase in entropy of a system alone does not guarantee
the spontaneity of a process Explain
4+) 0he criterion of spontaneity in terms of Gis energy is the
same as that laid don y second la of thermodynamic o
PROBLEMS
1) 0hree moles of an ideal gas are expanded isothermally from a
volume of 377cm3 to 2$ at 377F against a pressure of 15atm
alculate the or8 done in atm and Koules2) Dne mole of an ideal gas is compressed from $77cm3 against a
constant pressure of 121 17$-a 0he or8 involved in the
process is 3$7I alculate the nal volume
3) alculate the maximum or8 hen 24g of oxygen are
expanded isothermally and reversily from a pressure of 1
17$-a to 1778-a at 25F
4) 0hree moles of an ideal gas are compressed isothermally andreversily to a volume of 2 0he or8 done is 2538I at 22
alculate the initial volume of a gas
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$) 2 172 8g of nitrogen is expanded isothermally and
reversily at 377F from 1$1$ 17$ m 2 hen the or8 done is
found to e 1+338 I 6ind the nal pressure
) sample of a gas asors 47778I of heata) if volume remains constantlt hat is
) uppose that in addition to asorption of heat y the samplelt
the surrounding does 27778I of or8 on the samplelt hat is
c) uppose that as the original sample asors heatlt it expands
against atmospheric pressure and does 778 I of or8 on its
surroundings What is
+) alculate the or8 done in each of the folloing reactions
tate hether or8 is done on or y the system
a) 0he oxidation of one mole of D2 at $7
2D2g) H D2g) 2D3g)
) decomposition of 2 moles of 4D3 at 177
4D3s) 2Dg) H 22Dg)
) 0he enthalpy change for the reaction
24g) H 2g) 2g) is 27I hen 177m of ethylene and
177m of 2 react at 1atm pressure alculate the pressure
volume or8 and
5) alculate standard enthalpy of the reaction
6e2D3s) H 3Dg) 26es) H 3D2g) from the folloing data
f 76e2D3)A2428Imol1ltf 7D)A117$8Imol1lt
f 7D2)A353$8Imol1
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8112019 Chemistry Question 12sci (1)
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Electro chemitry
Theory
1ene the terms resistivitylt conductivity and molar
conductivity Give its ( units
2Explain the terms conductivity and molar conductivity o are
they interrelated
3Why does conductivity of s solution decrease on dilution of a
solution
4o does molar conductivity of an electrolyte vary ith
concentration
$o does the variation in molar conductivity of an electrolyte
ith concentration diers for strong and ea8 electrolytes
Explain the dierent ehaviour of strong and ea8 electrolytes
toards the variation of conductivity ith concentration
+tate and explain Fohlrausch la of independent migration of
ions o it is useful to determine the molar conductivity of ea8
electrolytes at =ero concentration
o is the molar conductivity of strong electrolytes at =ero
concentration determined y graphical method Why is this
method not useful for ea8 electrolytes
5What is cell constant What is its unit o is it determined
17ene anode and cathode
11 Why is cathode in electrolytic cell considered to e negative
and anode positive
12 -redict the half cell reactions that occur hen fused Fl is
electroly=ed in a cell ith inert electrodes What is the overall cell
reaction
8112019 Chemistry Question 12sci (1)
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13 tate 6aradayBs las of electrolysis
14o ill you calculate the numer of moles of electrons
actually passed and mass of the sustance produced during
electrolysis of a salt solution using reaction stoichiometry1$o many electrons ill have a total charge of 1 coulom
1 o many faradayBs ould e reCuired to plate out 177 mole
of free metal from the folloing cations
a) ampg2H
) r3H
c) -2H
d) uH
1+ ene coulom and faraday
1 escrie the electrolysis of molten al using inert
electrodes
15 What is the dierence eteen electrolytic cell and voltaic
cell
27 Why is anode in galvanic cell considered to e negative and
cathode positive electrode
21 8etch the cell for the electrolysis of molten al (ndicate
cathodelt anode and their signs ho the Jo of electrons and
ions
22 What is salt ridge What are its functions in galvanic cell
23 What are the conventions used to rite cell diagramcell
formula)
24 escrie the construction of aniel cell Write electrode half
reactions and net cell reaction in aniel cell
8112019 Chemistry Question 12sci (1)
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2$ escrie the folloing types of electrodes giving one
examplelt ith reference to formulationlt electrode reaction and
ernst eCuation for electrode potential
a) metalsparingly salt electrode) gas electrode
2 What is redox electrode Give one example ith formulationlt
electrode reaction and ernst eCuation for electrode potential
2+ ene the terms oxidation potentiallt reduction potential and
cell potential
2 What conditions are reCuired for a cell potential to e calledstandard cell potential
25 6ormulate a cell for each of the folloing electrode reactions
a) n2H aC) H 2gl s) L n4H aC) H 2gs) H2l aC)
) ampg s) H r2l) L ampg2H aC) H 2r aC)
37 6ormulate a cell from the folloing electrode reactions
a) l2g) H 2e L 2l aC)
) 2( aC) L (2s) H 2e
31 What are standard electrode potential and standard emf of
the galvanic cell
32 Write ernst eCuation and explain the terms involved in it
What part of the eCuation represents the correction factor for
nonstandard state conditions
33 Write ernst eCuation for the folloing reactions
a) rs) H 36e3H aC) L r3H aC) H 36e2H aC)
) l3H aC) H 3e L l s)
8112019 Chemistry Question 12sci (1)
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34 onsider the folloing E7 values and half reactions
(2s) H 2e L 2( aC) E7A7$3$M
u2H aC) H 2e L u s) E7A733+M
d2H aC) H 2e L ds) E7A77473
a) Which of the metals or nonmetals or ions is the strongest
oxidi=ing agent and hich is the strongest reducing agent
) 0he half reactions can e used to construct three galvanic
cells Which ill have the highest cell potential
3$ -redict hether
a) gH can oxidi=e - to -2H under standard state condition
) E7gA7+55M and E7
-A712M
3 -redict hether the folloing reactions occur under standard
state conditions
a) Dxidation of gs) y l2g) E7gA7Mlt E7
l2A13M
) eduction of 6e
3H
to 6e
2H
y us) E
7
6e3Hlt 6e2H A 7++MltE7uA14M
3+ 8etch and descrie the operation of
a) dry cell
) 2D2 fuel cell
3 What are the advantages and disadvantages of fuel cells
35 8etch lead storage cell
47 Write electrode reaction and overall cell reaction during the
operation of lead storage cell
41 Write electrode reaction and overall cell reaction hen lead
accumulator ehaves as an electrolytic cell
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42 o can ernst eCuation e used to sho that electrode
potential is eCual to the standard electrode potential y putting
approximate values in ernst eCuation se u2HNd half cell for
illustration
43 o are G7lt E7cell and eCuilirium constant related for a
particular reaction
44 Why is eCuilirium constant related to E7cell and not Ecell
4$ G7 for a redox reaction depends on the numer of electrons
transferred Explain
4 o does the eCuiliriumlt G7An6E7 explain that an
electrical potential is an intensive property
4+ Write shorthand notation for the cell for each of the folloing
reactions
a) u2H aC) H 2gs) H 2r L u s) H 2gr s)
) n2H aC) is oxidi=ed y r2 l)
4 rrange the folloing reducing agents in order of increasing
strength under standard state conditions 0he standard potentialsfor the reduction half reactions are given
gH aC) 7M)lt l3H aC) 1M)lt 62g) 2+M)lt l2g) 13M)lt
(2s) 7$4M)lt d2H aC) 74M)
45 rrange the folloing oxidi=ing agents in order of increasing
strength under standard state conditions 0he standard potentials
for the reduction half reactions are given
ls) 1M)lt l aC) 13M)lt us) 734M)lt 6es)744M)lt r
aC) 175M)lt is) 72M)
$7 Which species in each of the folloing pairs is etter oxidi=ing
agent under standard state conditions standard potential are
given) Give reasons for your anser
8112019 Chemistry Question 12sci (1)
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a) r2l) 175M) or u3H 14M)
) H aC) or gH aC) 7M)
c) -2H aC) 713M) or o2H 72M)
d) l2 g) 13M) or r3H 7+4M)
$1 Which species in each of the folloing pairs is etter reducing
agent under standard conditions E7 values are given Give
reasons for your anser
a) Fs) 2353M) or ampgs) 23M)
) o2H aC) 11M) or (n s) 714M)
c) e3H aC) 11M) or 0i2H73+M)
d) gl) 7M) or is) 723M)
PROBLEMS
1 conductivity cell lled ith 771amp Fl given at 2$o the
resistance of 74ohms 0he conductivity of Fl at 2$
o
is 7777
CHEMISTRY
d f O DF EEampE0
1) What are dloc8 elements
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2) What are floc8 elements
3) Explain the meaning of
i) 0ransition series ii) (nner transition element
4) Explain the position of the folloing in periodic tale
i) dloc8 elements ii) anthanoids iii) ctinoids
$) Explain the oxidation state of 1st ro elements of transition
series
) Explain the oxidation states of lanthanoids and actinoids
+) Why do lanthanoids form coloured compounds ) Explainlt most of the transition metal compounds are
remar8aly coloured
5) Why chromium has electronic conguration 3d$ 4s1 and not 3d4
4s2
17) Why does copper sho anormal electronic conguration
11) Explainlt the trends in atomic and ionic si=es of lanthanoidsand also of 1st ro elements of transition series
12) What are actinoids
13) What are transuranic elements Write their name
14) Why transition elements sho tendency to form large numer
of complexes
1$) Explain the compounds of copper ((() are coloured ut thoseof =inc are colourless
1) o is potassium dichromate prepared from chrome ion
1+) Write the preparationlt properties and use of potassium
permanganate
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1) Explainlt hy -t(M) complexes are generally octahedral hile
-t(() complexes are sCuare planar
15) ierentiate eteen lanthanoids and actinoids
27) What are chemical tins Give examples
21) Explain hy Gd3H is colourless
COORDINATION COMPOUNDS
1) What is the dierence eteen doule salt and coordinationcompounds
2) Explainlt hy 6e4)2 D4)22D) is a salt ut F 4P6e)Q is a
complex compound
3) Write the formula of the folloing complexes
i) alcium hexa cyano ferrate (()
ii) iammine dichloro platinum
iii) is ethylene diammine) dichloro iridium ((() ion
iv) -entamine caronato chromium ((() D(E
v) 0risethylene diammine ) coalt((() sulphate
vi) iamine ethylene diammine nic8el (() acetate
4) Write the rules hich are applied hile riting the formulas of
coordination compounds
$) ene the terms
i) entral metal atomgtion
ii) igand
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iii) oordination compound
iv) oordination sphere
v) oordination numer
vi) oordination polyhedral
vii) omoleptic and heteroleptic complexes
viii) harge on the complexes
ix) oordination entity
) Write (- name of the folloing complexes
i) Pr2D)4 l2QD3
ii) P-ten)l4Q
iii) F 2Pi)4Q
iv) sP6el4Q
v) rl3-y)3
vi) F 3Po2D4)3Q
vii) Por2en)2Q
viii) P-tl4Q2
ix) Po2D))en)2Q2H
x) F 3Pl2D4)3Q
+) Explain the importance of principles of additive nomenclature
) (dentify the folloing ions y a simple test forming complex
compound
i) u2H ii) i2H iii) 6e3H iv) o2H
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5) Dn the asis of WernerBs theory explainlt hy coalt amine
complexlt ol343 hen treated ith gD3 solution
precipitates only one ion even though there are three ions
17) alculate the eective atomic numer E) of the centralmetal atom in the folloing compounds
i) F 3P6e)Q ii) rD)
11) Write the postulates of WernerBs theory
12) Explain the onding in ol333 and ol3$3
13) Explain stereoisomerism in metal complexes ith coordination
numer 4 and 14) Why the tetrahedral complexes do not exhiit geometrical
isomerism
1$) ra cis and trans geometrical isomers of
i) dichlororomo iodo palladium (() ion
ii) P-t(()3)2l2Q
iii) Po((()3)l3Q
iv) Po((()3)42D)lQ2H
1) ra all possile geometrical isomers of P-t(M)
3)2-y)2l2Q2H ion
1+) Write oxidation statelt coordination numer and electronic
conguration of the metal atom in the folloing complexes
i) rl3-y)3 ii) F 4Pampn)Q
1) lassify the folloing ligands into monodentatelt polydentate
and amidentate
i) 3 ii) iii) iv) v) D2 vi) ethylene diammine
vii) oxalate
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viii) triaminotriethylamine
15) ol3$32D is a pin8 solidlt the solution of this salt is also
pin8 and formed 3mol of gl ith silver nitrate solution Dn
heating pin8 solidlt it loses one ater molecule and forms purplesolid having same ratio of o3l as that of pin8 solid 0he
purple solid hen dissolved in ater and treated ith forms 1 mol
of gl ra the structure and name of the pin8 and purple
solids
27) ame the octahedral complex ions
i) Po2D4) en)2QH ii) transPr)4 3)2Q
21) ra the structures of the folloing complexes
i) Pol4Q2 ii) Pampn3)Q2H iii) P-tlQ iv) iD)4 v) Pi)4Q2
22) (n an octahedral crystal eldlt dra the gure to sho splitting
of dorital
23) What are ea8 eld and strong eld ligands What is spectro
chemical series
24) Pi)4Q2 is diamagnetic hile Pr3)Q3H is paramagnetltexplain
2$) Dn the asis of valence ond theory explain the nature of
onding in the folloing complexes
i) Po6Q3 ii) Po2D4)3Q3
2) lue coloured copper sulphate solution gave folloing
experimental results Explain the same
i) With aCueous potassium chloride it gave right green solution
ii) With aCueous potassium Juoride it gave a green precipitate
2+) ra the structures of optically active isomers of Poen)3Q3H
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2) ra the geometrical and optical isomers of
i) Pol2en)2QH ii) Polen)23)Q2H
25) What is lin8age isomerism Explain ith an example
37) What are hydrate isomers Explain ith examples
31) Explain the structure of
i) upraammonium sulphate ii) Po3)Q3H
32) What are the limitations of valence ond theory
33) Explain the magnetic properties of coordination compounds
34) Write the salient features of crystal eld theory What are itslimitations
3$) Explain the octahedral geometry of complexes using crystal
eld theory
3) Write a note on colours in coordination compounds
3+) Explain the factors aecting the staility of coordination
compound3) Write rief the applications of coordination compounds
HALOGEN DERIVATIVES O ALANES AND ARENES
1) What are al8yl halides o are they classied
2) Write (- names of the folloing compounds
i)
ii) 2Al
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iii)
iv)
v)
vi) secutyl chloride
vii) neopentyl romide
viii) tutyl iodide
ix) isopropyl romide
3) o is ethyl romide prepared from
i) Ethyl alcohol ii) ethane iii) ethane
4)Write the preparation of isopropyl chloride using the folloing
reagents
i) -l3 ii) -l$ iii) l2 iv) l v) Dl2
$) o is group replaced y folloing functional rroups
i) OD ii) O iii) O iv) O2
) Write a note on
i) andmeyerBs reaction ii) Wurt= reaction iii) 6in8elstein reaction
iv) 6ittig reaction v) 6riedel raft reaction
+) (dentify and in the folloing
8112019 Chemistry Question 12sci (1)
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) Give the structures of the folloing compounds
i) 3romo2methyl pentane ii) 2romo3ethyl hexane iii) 1
holo utane
iv) pichloroen=ene v) 1lt1lt10richloroethane
5) student has performed an experiment in the laoratory e
mixed ater ith hexane and found to layers separated econd
time he mixed chloroform ith ater and he again found to
layers in the test tue Explain hich ill e upper layer and
hich one ill e loer layer in oth the experiments
17) onvert 1hloroutane into the folloing compounds
i) utane1ol ii) 1(odoutane iii) 3222 iv)
11) 6or each pair of compoundslt state hich compound is etter
2 sustrate
i) 2romoutanelt isopropyl romide ii) 1(odo2lt2dimethyl
propane or isopropyl iodide
12) hoose the memer that ill react faster from the folloing
pairs y 1 mechanism
13) -redict the expected product of sustitution reaction
i) isoutyl chloride mH sodium ethoxide
ii) nutyl chloride H sodium
iii) 1hloro propane H aC potassium hydroxide
iv) aniline H aD2gt l
14) Write the products
i) $22A2 H r L
ii) $A2 H r
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iii)
iv)
v)
1$) (dentify the chiral and achiral molecules
i)
ii)
iii)
1) iscuss 2 mechanism of methyl romide using aCueous
FD ra energy prole diagram1+) Write the mechanism of the reaction hen tutyl chloride is
treated ith aCueous FD ith energy prole diagram
1) ierentiate eteen 1 and 2 mechanism
15) Explain the nature of ond in
i) 322 ii)
27) What are uses of
i) 0 ii) (odoform iii) hloroform iv) aron tetrachloride
21) l8yl halides are polar and miscile ith aterlt explain
22) Which one of the folloing is more easily hydrolysed y
aCueous FD
$l$ and $2l
23) rrange the folloing groups in descending order 2lt D3lt
D3lt DD and l
24) ssign or conguration to each of the folloing
structures
8112019 Chemistry Question 12sci (1)
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i)
ii)
iii)
iv)
DDlt -ED E0E
1) What are alcohols o are they classied
2) What are monohydric alcohols o are they classied
4) Write the structures of folloing alcohols
i) 1Ethylcyclohexanol ii) ex3en2ol iii)yclohex2en1ol
iv) -entane1lt4diol
v) 2lt4imethylhexane1lt3lt$triol
$) Explain the folloing
i) -ropan1ol has higher oiling point than nutane
ii) ampethanol is more solule in ater than -ropan1ol
) Write the mechanism of hydration of ethylene to ethyl alcohol
+) -ropan1ol can not e prepared y acid catalyst hydration of
propenelt then ho is propene converted into propan1ol
)5) o is propanone converted into
i) -ropan2ol ii) 2ampethyl propan2ol
17) o ill you otain utan2ol from
8112019 Chemistry Question 12sci (1)
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i) -ropanal ii) utan2one iii) ut2ene
11) o is propan1ol prepared from
i) -ropanal ii) -ropanoic acid
12) o is cyclopentanol prepared from
i) yclopentanone ii) yclopentene
14) Write the mechanism of acid catalysed dehydration of ethanol
to give ethane
1$) Write the structure of aldehyde lt caroxylic acid and ester
that yield folloing alcohol
1+) o ill you prepare
i) 2ampethylutane1ol from an al8ene
ii) cyclohexylmethanol from a Grignard reagent
iii) 1phenylethanol from acetaldehyde
1) o are folloing conversions rought aout
i) en=yl chloride to en=yl alcohol
ii) en=yl alcohol to en=oic acid
iii) 1Ethylcyclohexanol from yclohexanone
15) What are phenols o are they classied
27)21) Give the structures and (- names of isomeric phenols
represented y the molecular formula 17D
22) o is phenol prepared from
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i) hloroen=ene ii) (sopropyl en=ene iii) en=ene sulphonic
acid iv) aniline
23 ) Explain the folloing
i) -henol is more acidic than phenol
ii) onitrophenol is more acidic than ocresol
iii) pnitrophenol is less volatile than onitrophenol
24) Explain the folloing reactions of phenol
i) FoleBs reaction ii) iemer0iemann reaction
2$) ame the reagents used to convert phenol intoi) picric acid ii) 2lt4lt0riromophenol iii) en=ene iv) ophenol
sulphonic acid
2) What is the action of folloing reagents on phenol i)
romine in 2 at lo temperature
ii) ilute nitric acid at room temperature iii) oncentrated
sulphuric acid at room temperature
2+) Give distinguish test eteen phenol and ethanol
2) What are ethers o are ethers classied
25) What is metamerism Give the structure and (- name of
metamers of 2ampethoxypropane
37) Write the mechanism for acidic dehydration of ethanol
31) o is diethyl ether prepared y continuous ethericationprocess Why is the process so called
32) o ill you prepared methoxyethane from
i) l8yl halide ii) ia=omethane
33) tate the important uses of i) -henol ii) diethyl ether
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34) Write the mechanism of action of hydrogen romide on tert
utyl methyl ether
3$) Explain the folloing reactions of anisole
i) romination ii) itration iii) 6riedelrafts al8ylation iv)6riedelrafts acylation
3) Explainlt i) 0he OD group attached to aromatic ring in
phenols and ii) 0he al8oxy group in al8yl aryl ethers are ortholt
para directing and activate the aromatic ring toars electrophilic
sustitution
3+) Write the chemical eCuations for Williamson synthesis of 2
Ethoxy2methypentane starting from ethanol and 2ampethylpentan2ol
3) n organic compound ith the formula 417D3 shos
properties of ether and alcohol hen treated ith an excess of
r yields only one compound 1lt2 diromomethane Write
structural formula of ether and that of alcohol
ALDEHYDES ETONES AND CABO$YLIC
ACID
1) Write the structure and give (- names of the folloing
compounds
i) chloropropionaldehyde
ii) Rhydroxyutyraldehyde
iii) isoutyraldehyde
iv) Rmethylvaleraldehyde
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v) isopropyl methyl 8etone
vi) diisopropyl 8etone
vii) mromoen=aldehyde
viii) dien=yl 8etone
ix) divinyl 8etone
x) allyl methyl 8etone
xi) ethyl phenyl 8etone
xii) nutyrophenone
2) Write the structure of folloing compounds
i) 4ampethyl3nitroen=ophenone ii) 2ampethyl4oxopentanal iii)
3Dxopentanoic acid iv) 4chloropropiophenone v) 3
ampethoxyutanal vi) 4ydroxycyclohaxane caraldehyde
3) o ill you prepare i) propiophenone from propanenitrile ii)
4chloroen=aldehyde from 4chlorotoluene iii)
yclohaxanecaraldehyde from cyclohexylmethanol iv) 4
methoxyacetophenone from anisole v) 4methylen=aldehydefrom toluene
4) rrange the folloing compounds in the increasing order of
their oiling points
i) dimethyl etherlt ethyl alcohollt propanelt acetaldehyde
ii) acetonelt npropyl alcohollt ethyl methyl alcohol and nutane
$) What is the action of hydrogen cyanide in asic medium on i)utanone ii) 2lt4dichloroen=aldehyde
) What is the action of folloing compounds on cyclohexanone in
presence of dry hydrogen chloride
i) ethyl alcohol ii) ethylene glycol
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+) Write the structure of product in the folloing reactions
i) 322D3
ii) $2D3
) Write the structures of caronyl compounds and ammonia
derivatives that comine to give folloing imines
i)
ii)
iii)
iv)v)
vi)
5) Write the chemical eCuations for aldol condensation or
anni==aro reaction that folloing compounds undergo
i) -ropanal ii) 2ampethylpropanal iii) -entanal iv) 3
ampethylutanal v) cetophenonevi) pampethoxyen=aldehyde vii) 2ampethylcyclohaxanone viii)
chloral ix) yclopentanone
x) -henyl acetaldehyde xi) 1-henylpropan1one
17) Write the structure of the maKor product of the folloing
crossed aldol condensation
i) formaldehyde and propionaldehydeii) en=aldehyde ith acetone
11) (dentify the compounds SBlt SB and SB in the folloing
reactions and rerite the complete eCuations
i)
8112019 Chemistry Question 12sci (1)
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ii)
12)o ill you eect folloing tostep conversions
i) -ropanal into utanone ii) utanone into ut2ene iii)
en=ene into mromoacetophenone iv) ex3yne into exan
3one v) en=oic acid into mnitroen=ylalcohol
13) o ill you convert en=aldehyde into folloing compounds
ampore than one steps may e reCuired
i) en=ophenone ii) en=oic acid iii) 3-henylpropan1ol iv)hydroxyphenylacetic acid
14) Give a chemical test to distinguish eteen folloing pairs of
compounds
i) Ethanal and propanone ii) -rpopanal and propanone iii)
-entane2one and pentane3one
1$) Write the structure and (- names of folloing caroxylicacids
i) ltRdimethylutanoic acid ii) Rphenylutyric acid iii) 1038389
chloromethylvaleric acid
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+) alculate the mole fractionlt molality and molarity of D3 in a
solution containing 122 D3 Given density of
D3A173ggtcm3lt A1lt A14lt DA1
) ulphuric acid is 5$ y mass alculate mole fraction andmolarity of 2D4 of density 151ggtcm3
5) Cueous solution of aD is mar8ed 17gt) 0he density of
the solution is 17+7ggtcm3
alculatelt
i) molarity ii) molality and iii) mole fraction of aD and ater
aA23lt A1 and DA1
17) attery acid is 422amp aCueous 2D4 solutionlt and has density
of 121ggtcm3 What is the molality of 2D4 A1lt A32lt DA1
11) 0he vapour pressure of 21 solution of a nonelectrolyte in
ater at 177 is +$$mm g alculate the molar mass of the
solute
12) 0he vapour pressure of ater at 27 is 1+mm g alculate
the vapour pressure of a solution containing 2g of
urea2D2) in $7g of ater A14lt A12lt A1
13) (n an experimentlt 174g of mannitol ere dissolved in 177g
of ater 0he vapour pressure of ater as loered y 7375mm
g from 1+$3$mm g alculate the molar mass of mannitol
14) solution containing 7$12g of naphthalene molar mass A
121+ggtmol) in $7g of l4 gives a oiling point elevation of
7472F While a solution of 721g of un8non solute in the
same mass of the solvent gives a oiling point elevation of 74+F
6ind the molar mass of the un8non solute
F for l4A $73F 8g mol1 of solvent)
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1$) alculate the mass in grams of an impurity of molar mass
177gmol1 hich ould e reCuired to raise the oiling point of
$7g of chloroform y737F
F for chloroformA 33F 8g mol
1
)1) oiling point of a solvent is 72 When 7415g of the solute
of molar mass 2$24g mol1 as dissolved in +$g of the solventlt
the oiling point of the solution as found to e 72$ 6ind
the molal elevation constant
1+) 7ml of glacial acetic acid ith density 17gm 1 is
dissolved in 18g ater and the solution fro=e at 7727$
alculate vant o factor and F f for ater is1F 8g mol1
1) enryBs la constant for soluility of methane in en=ene is
42+ 17$mm g at constant temperature alculate the
soluility of methane at +7mm g pressure at same
temperature
CHEMICAL THERMODYNAMICS AND ENERGIES
Theory
1)ene the terms systemlt surroundinglt open systemlt close
systemlt isolated systemlt exothermic reactionslt endothermic
reactionslt extensive properties and intensive properties
2) Explain the term state function Give to examples of state
functions and to example of path function
3) Explain thermodynamics eCuilirium
4) istinguish eteen isothermal and adiaatic process
$) What is a reversile process What are its features
) ho that pressure times volume is eCual to or8
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+) erive the expression for or8 hen a gas expands against
constant external pressure
) lassify the folloing reactions according to or8 done y the
systemlt on the system and no or8 done if pressure is constanta) 2g) H l2g) 2lg)
) 3D2g) 2D3g)
c) 2D2g) D2g)H 2D3g)
d) ampgD3s) H ampgDs) D2g)
e) 4D3s) H 2Dg) 22Dg)
5) What is the dierence dierence eteen and What is
the sign of for exothermic and endothermic reactions nder
hat circumstances
17) What are the sign convention for C and W
11) Explain the concept of maximum or8
12) free expansion of a gas results into no or8 Explain
13) erive the expression for maximum or8
14) ene enthalpy t constant pressure sho that A
1$) (t is di9cult to calculate lt hoever can e easily
determined Why Explain giving examples
1) tate rst la of thermodynamics Iustify its mathematical
eCuation
1+) Dtain the relationship eteen and for a chemical
reaction
1) What is the expression for or8 done in a chemical reaction
Explain the meaning of each term
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8112019 Chemistry Question 12sci (1)
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a) dissolution of sugar in hot coee
) separation of r and Fr from their mixture
c) spreading of fragrance hen a ottle of perfume is opened
d) Jo of heat from cold oKect to hot oKect
e) heat transfer from ice to room at 2$
37) ene entropy Give its units What does entropy measures
31)Explain ho entropy changes in the folloing processes
a) free=ing of liCuid
) sulimation of solid
c) dissolving of ater in sugar
d) condensation of vapour
32) Which memer of the folloing pairs have larger entropy
Why
a) D2s) or D2g)
) 3Dl) or 2$D2$l)
c) Dg) or 2D4g)
d) eg) or Frg)
e) as) or als)
33) Why is it more convenience to predict spontaneity of reaction
in terms of Gsys rather than total34) ene Gis energy and change in Gis energy What are
the units of Gis energy
3$) tate second la of thermodynamics in terms of entropy and
express it mathematically
8112019 Chemistry Question 12sci (1)
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3) tate third la of thermodynamics What is its usefulness
3+) Why is it impossile for any sustance to have an asolute
entropy =ero at temperature greater than 7F
3) (t is impossile for a reaction to e spontaneous yetexothermic Explain ith example
35) (s it possile for a reaction to e nonspontaneous yet
exothermic Explain ith example
47) -redict the sign of in the folloing process Give reasons
for your anser
a) 2D4g) 2D2g)) 6e2D3s) H 32g) 26es) H 32Dg)
c) 2g) H 32g) 23g)
d) ampgD3s) 23g)
e) D2g) D2s)
f) l2g) 2lg)
41) What can e said aout the spontaneity of reactions hen
a) and are oth positive
) and oth are negative
c) is positive and is negative
d) is negative and is positive
42) (dentify hich memer of the folloing pairs has largerentropy Why
a) eg) in a volume of 1 or eg) in a volume of $ oth at 2$
) D2g) at 1atm or D2g) at 17atm oth at the same temperature
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c) 2$Dl) or 2$Dg)
d) $ moles of e or 2 moles of e
43) What are the signs of for the folloing reaction
Explain ith reasons
2g) 2g)
44) erive the relationship eteen G and total
4$) Iustify the inclusion of Crev and 0 in the denition of entropylt
A Crevgt 0
4) 0he increase in entropy of a system alone does not guarantee
the spontaneity of a process Explain
4+) 0he criterion of spontaneity in terms of Gis energy is the
same as that laid don y second la of thermodynamic o
PROBLEMS
1) 0hree moles of an ideal gas are expanded isothermally from a
volume of 377cm3 to 2$ at 377F against a pressure of 15atm
alculate the or8 done in atm and Koules2) Dne mole of an ideal gas is compressed from $77cm3 against a
constant pressure of 121 17$-a 0he or8 involved in the
process is 3$7I alculate the nal volume
3) alculate the maximum or8 hen 24g of oxygen are
expanded isothermally and reversily from a pressure of 1
17$-a to 1778-a at 25F
4) 0hree moles of an ideal gas are compressed isothermally andreversily to a volume of 2 0he or8 done is 2538I at 22
alculate the initial volume of a gas
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$) 2 172 8g of nitrogen is expanded isothermally and
reversily at 377F from 1$1$ 17$ m 2 hen the or8 done is
found to e 1+338 I 6ind the nal pressure
) sample of a gas asors 47778I of heata) if volume remains constantlt hat is
) uppose that in addition to asorption of heat y the samplelt
the surrounding does 27778I of or8 on the samplelt hat is
c) uppose that as the original sample asors heatlt it expands
against atmospheric pressure and does 778 I of or8 on its
surroundings What is
+) alculate the or8 done in each of the folloing reactions
tate hether or8 is done on or y the system
a) 0he oxidation of one mole of D2 at $7
2D2g) H D2g) 2D3g)
) decomposition of 2 moles of 4D3 at 177
4D3s) 2Dg) H 22Dg)
) 0he enthalpy change for the reaction
24g) H 2g) 2g) is 27I hen 177m of ethylene and
177m of 2 react at 1atm pressure alculate the pressure
volume or8 and
5) alculate standard enthalpy of the reaction
6e2D3s) H 3Dg) 26es) H 3D2g) from the folloing data
f 76e2D3)A2428Imol1ltf 7D)A117$8Imol1lt
f 7D2)A353$8Imol1
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8112019 Chemistry Question 12sci (1)
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Electro chemitry
Theory
1ene the terms resistivitylt conductivity and molar
conductivity Give its ( units
2Explain the terms conductivity and molar conductivity o are
they interrelated
3Why does conductivity of s solution decrease on dilution of a
solution
4o does molar conductivity of an electrolyte vary ith
concentration
$o does the variation in molar conductivity of an electrolyte
ith concentration diers for strong and ea8 electrolytes
Explain the dierent ehaviour of strong and ea8 electrolytes
toards the variation of conductivity ith concentration
+tate and explain Fohlrausch la of independent migration of
ions o it is useful to determine the molar conductivity of ea8
electrolytes at =ero concentration
o is the molar conductivity of strong electrolytes at =ero
concentration determined y graphical method Why is this
method not useful for ea8 electrolytes
5What is cell constant What is its unit o is it determined
17ene anode and cathode
11 Why is cathode in electrolytic cell considered to e negative
and anode positive
12 -redict the half cell reactions that occur hen fused Fl is
electroly=ed in a cell ith inert electrodes What is the overall cell
reaction
8112019 Chemistry Question 12sci (1)
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13 tate 6aradayBs las of electrolysis
14o ill you calculate the numer of moles of electrons
actually passed and mass of the sustance produced during
electrolysis of a salt solution using reaction stoichiometry1$o many electrons ill have a total charge of 1 coulom
1 o many faradayBs ould e reCuired to plate out 177 mole
of free metal from the folloing cations
a) ampg2H
) r3H
c) -2H
d) uH
1+ ene coulom and faraday
1 escrie the electrolysis of molten al using inert
electrodes
15 What is the dierence eteen electrolytic cell and voltaic
cell
27 Why is anode in galvanic cell considered to e negative and
cathode positive electrode
21 8etch the cell for the electrolysis of molten al (ndicate
cathodelt anode and their signs ho the Jo of electrons and
ions
22 What is salt ridge What are its functions in galvanic cell
23 What are the conventions used to rite cell diagramcell
formula)
24 escrie the construction of aniel cell Write electrode half
reactions and net cell reaction in aniel cell
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2$ escrie the folloing types of electrodes giving one
examplelt ith reference to formulationlt electrode reaction and
ernst eCuation for electrode potential
a) metalsparingly salt electrode) gas electrode
2 What is redox electrode Give one example ith formulationlt
electrode reaction and ernst eCuation for electrode potential
2+ ene the terms oxidation potentiallt reduction potential and
cell potential
2 What conditions are reCuired for a cell potential to e calledstandard cell potential
25 6ormulate a cell for each of the folloing electrode reactions
a) n2H aC) H 2gl s) L n4H aC) H 2gs) H2l aC)
) ampg s) H r2l) L ampg2H aC) H 2r aC)
37 6ormulate a cell from the folloing electrode reactions
a) l2g) H 2e L 2l aC)
) 2( aC) L (2s) H 2e
31 What are standard electrode potential and standard emf of
the galvanic cell
32 Write ernst eCuation and explain the terms involved in it
What part of the eCuation represents the correction factor for
nonstandard state conditions
33 Write ernst eCuation for the folloing reactions
a) rs) H 36e3H aC) L r3H aC) H 36e2H aC)
) l3H aC) H 3e L l s)
8112019 Chemistry Question 12sci (1)
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34 onsider the folloing E7 values and half reactions
(2s) H 2e L 2( aC) E7A7$3$M
u2H aC) H 2e L u s) E7A733+M
d2H aC) H 2e L ds) E7A77473
a) Which of the metals or nonmetals or ions is the strongest
oxidi=ing agent and hich is the strongest reducing agent
) 0he half reactions can e used to construct three galvanic
cells Which ill have the highest cell potential
3$ -redict hether
a) gH can oxidi=e - to -2H under standard state condition
) E7gA7+55M and E7
-A712M
3 -redict hether the folloing reactions occur under standard
state conditions
a) Dxidation of gs) y l2g) E7gA7Mlt E7
l2A13M
) eduction of 6e
3H
to 6e
2H
y us) E
7
6e3Hlt 6e2H A 7++MltE7uA14M
3+ 8etch and descrie the operation of
a) dry cell
) 2D2 fuel cell
3 What are the advantages and disadvantages of fuel cells
35 8etch lead storage cell
47 Write electrode reaction and overall cell reaction during the
operation of lead storage cell
41 Write electrode reaction and overall cell reaction hen lead
accumulator ehaves as an electrolytic cell
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42 o can ernst eCuation e used to sho that electrode
potential is eCual to the standard electrode potential y putting
approximate values in ernst eCuation se u2HNd half cell for
illustration
43 o are G7lt E7cell and eCuilirium constant related for a
particular reaction
44 Why is eCuilirium constant related to E7cell and not Ecell
4$ G7 for a redox reaction depends on the numer of electrons
transferred Explain
4 o does the eCuiliriumlt G7An6E7 explain that an
electrical potential is an intensive property
4+ Write shorthand notation for the cell for each of the folloing
reactions
a) u2H aC) H 2gs) H 2r L u s) H 2gr s)
) n2H aC) is oxidi=ed y r2 l)
4 rrange the folloing reducing agents in order of increasing
strength under standard state conditions 0he standard potentialsfor the reduction half reactions are given
gH aC) 7M)lt l3H aC) 1M)lt 62g) 2+M)lt l2g) 13M)lt
(2s) 7$4M)lt d2H aC) 74M)
45 rrange the folloing oxidi=ing agents in order of increasing
strength under standard state conditions 0he standard potentials
for the reduction half reactions are given
ls) 1M)lt l aC) 13M)lt us) 734M)lt 6es)744M)lt r
aC) 175M)lt is) 72M)
$7 Which species in each of the folloing pairs is etter oxidi=ing
agent under standard state conditions standard potential are
given) Give reasons for your anser
8112019 Chemistry Question 12sci (1)
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a) r2l) 175M) or u3H 14M)
) H aC) or gH aC) 7M)
c) -2H aC) 713M) or o2H 72M)
d) l2 g) 13M) or r3H 7+4M)
$1 Which species in each of the folloing pairs is etter reducing
agent under standard conditions E7 values are given Give
reasons for your anser
a) Fs) 2353M) or ampgs) 23M)
) o2H aC) 11M) or (n s) 714M)
c) e3H aC) 11M) or 0i2H73+M)
d) gl) 7M) or is) 723M)
PROBLEMS
1 conductivity cell lled ith 771amp Fl given at 2$o the
resistance of 74ohms 0he conductivity of Fl at 2$
o
is 7777
CHEMISTRY
d f O DF EEampE0
1) What are dloc8 elements
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2) What are floc8 elements
3) Explain the meaning of
i) 0ransition series ii) (nner transition element
4) Explain the position of the folloing in periodic tale
i) dloc8 elements ii) anthanoids iii) ctinoids
$) Explain the oxidation state of 1st ro elements of transition
series
) Explain the oxidation states of lanthanoids and actinoids
+) Why do lanthanoids form coloured compounds ) Explainlt most of the transition metal compounds are
remar8aly coloured
5) Why chromium has electronic conguration 3d$ 4s1 and not 3d4
4s2
17) Why does copper sho anormal electronic conguration
11) Explainlt the trends in atomic and ionic si=es of lanthanoidsand also of 1st ro elements of transition series
12) What are actinoids
13) What are transuranic elements Write their name
14) Why transition elements sho tendency to form large numer
of complexes
1$) Explain the compounds of copper ((() are coloured ut thoseof =inc are colourless
1) o is potassium dichromate prepared from chrome ion
1+) Write the preparationlt properties and use of potassium
permanganate
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1) Explainlt hy -t(M) complexes are generally octahedral hile
-t(() complexes are sCuare planar
15) ierentiate eteen lanthanoids and actinoids
27) What are chemical tins Give examples
21) Explain hy Gd3H is colourless
COORDINATION COMPOUNDS
1) What is the dierence eteen doule salt and coordinationcompounds
2) Explainlt hy 6e4)2 D4)22D) is a salt ut F 4P6e)Q is a
complex compound
3) Write the formula of the folloing complexes
i) alcium hexa cyano ferrate (()
ii) iammine dichloro platinum
iii) is ethylene diammine) dichloro iridium ((() ion
iv) -entamine caronato chromium ((() D(E
v) 0risethylene diammine ) coalt((() sulphate
vi) iamine ethylene diammine nic8el (() acetate
4) Write the rules hich are applied hile riting the formulas of
coordination compounds
$) ene the terms
i) entral metal atomgtion
ii) igand
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iii) oordination compound
iv) oordination sphere
v) oordination numer
vi) oordination polyhedral
vii) omoleptic and heteroleptic complexes
viii) harge on the complexes
ix) oordination entity
) Write (- name of the folloing complexes
i) Pr2D)4 l2QD3
ii) P-ten)l4Q
iii) F 2Pi)4Q
iv) sP6el4Q
v) rl3-y)3
vi) F 3Po2D4)3Q
vii) Por2en)2Q
viii) P-tl4Q2
ix) Po2D))en)2Q2H
x) F 3Pl2D4)3Q
+) Explain the importance of principles of additive nomenclature
) (dentify the folloing ions y a simple test forming complex
compound
i) u2H ii) i2H iii) 6e3H iv) o2H
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5) Dn the asis of WernerBs theory explainlt hy coalt amine
complexlt ol343 hen treated ith gD3 solution
precipitates only one ion even though there are three ions
17) alculate the eective atomic numer E) of the centralmetal atom in the folloing compounds
i) F 3P6e)Q ii) rD)
11) Write the postulates of WernerBs theory
12) Explain the onding in ol333 and ol3$3
13) Explain stereoisomerism in metal complexes ith coordination
numer 4 and 14) Why the tetrahedral complexes do not exhiit geometrical
isomerism
1$) ra cis and trans geometrical isomers of
i) dichlororomo iodo palladium (() ion
ii) P-t(()3)2l2Q
iii) Po((()3)l3Q
iv) Po((()3)42D)lQ2H
1) ra all possile geometrical isomers of P-t(M)
3)2-y)2l2Q2H ion
1+) Write oxidation statelt coordination numer and electronic
conguration of the metal atom in the folloing complexes
i) rl3-y)3 ii) F 4Pampn)Q
1) lassify the folloing ligands into monodentatelt polydentate
and amidentate
i) 3 ii) iii) iv) v) D2 vi) ethylene diammine
vii) oxalate
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viii) triaminotriethylamine
15) ol3$32D is a pin8 solidlt the solution of this salt is also
pin8 and formed 3mol of gl ith silver nitrate solution Dn
heating pin8 solidlt it loses one ater molecule and forms purplesolid having same ratio of o3l as that of pin8 solid 0he
purple solid hen dissolved in ater and treated ith forms 1 mol
of gl ra the structure and name of the pin8 and purple
solids
27) ame the octahedral complex ions
i) Po2D4) en)2QH ii) transPr)4 3)2Q
21) ra the structures of the folloing complexes
i) Pol4Q2 ii) Pampn3)Q2H iii) P-tlQ iv) iD)4 v) Pi)4Q2
22) (n an octahedral crystal eldlt dra the gure to sho splitting
of dorital
23) What are ea8 eld and strong eld ligands What is spectro
chemical series
24) Pi)4Q2 is diamagnetic hile Pr3)Q3H is paramagnetltexplain
2$) Dn the asis of valence ond theory explain the nature of
onding in the folloing complexes
i) Po6Q3 ii) Po2D4)3Q3
2) lue coloured copper sulphate solution gave folloing
experimental results Explain the same
i) With aCueous potassium chloride it gave right green solution
ii) With aCueous potassium Juoride it gave a green precipitate
2+) ra the structures of optically active isomers of Poen)3Q3H
8112019 Chemistry Question 12sci (1)
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2) ra the geometrical and optical isomers of
i) Pol2en)2QH ii) Polen)23)Q2H
25) What is lin8age isomerism Explain ith an example
37) What are hydrate isomers Explain ith examples
31) Explain the structure of
i) upraammonium sulphate ii) Po3)Q3H
32) What are the limitations of valence ond theory
33) Explain the magnetic properties of coordination compounds
34) Write the salient features of crystal eld theory What are itslimitations
3$) Explain the octahedral geometry of complexes using crystal
eld theory
3) Write a note on colours in coordination compounds
3+) Explain the factors aecting the staility of coordination
compound3) Write rief the applications of coordination compounds
HALOGEN DERIVATIVES O ALANES AND ARENES
1) What are al8yl halides o are they classied
2) Write (- names of the folloing compounds
i)
ii) 2Al
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iii)
iv)
v)
vi) secutyl chloride
vii) neopentyl romide
viii) tutyl iodide
ix) isopropyl romide
3) o is ethyl romide prepared from
i) Ethyl alcohol ii) ethane iii) ethane
4)Write the preparation of isopropyl chloride using the folloing
reagents
i) -l3 ii) -l$ iii) l2 iv) l v) Dl2
$) o is group replaced y folloing functional rroups
i) OD ii) O iii) O iv) O2
) Write a note on
i) andmeyerBs reaction ii) Wurt= reaction iii) 6in8elstein reaction
iv) 6ittig reaction v) 6riedel raft reaction
+) (dentify and in the folloing
8112019 Chemistry Question 12sci (1)
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) Give the structures of the folloing compounds
i) 3romo2methyl pentane ii) 2romo3ethyl hexane iii) 1
holo utane
iv) pichloroen=ene v) 1lt1lt10richloroethane
5) student has performed an experiment in the laoratory e
mixed ater ith hexane and found to layers separated econd
time he mixed chloroform ith ater and he again found to
layers in the test tue Explain hich ill e upper layer and
hich one ill e loer layer in oth the experiments
17) onvert 1hloroutane into the folloing compounds
i) utane1ol ii) 1(odoutane iii) 3222 iv)
11) 6or each pair of compoundslt state hich compound is etter
2 sustrate
i) 2romoutanelt isopropyl romide ii) 1(odo2lt2dimethyl
propane or isopropyl iodide
12) hoose the memer that ill react faster from the folloing
pairs y 1 mechanism
13) -redict the expected product of sustitution reaction
i) isoutyl chloride mH sodium ethoxide
ii) nutyl chloride H sodium
iii) 1hloro propane H aC potassium hydroxide
iv) aniline H aD2gt l
14) Write the products
i) $22A2 H r L
ii) $A2 H r
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iii)
iv)
v)
1$) (dentify the chiral and achiral molecules
i)
ii)
iii)
1) iscuss 2 mechanism of methyl romide using aCueous
FD ra energy prole diagram1+) Write the mechanism of the reaction hen tutyl chloride is
treated ith aCueous FD ith energy prole diagram
1) ierentiate eteen 1 and 2 mechanism
15) Explain the nature of ond in
i) 322 ii)
27) What are uses of
i) 0 ii) (odoform iii) hloroform iv) aron tetrachloride
21) l8yl halides are polar and miscile ith aterlt explain
22) Which one of the folloing is more easily hydrolysed y
aCueous FD
$l$ and $2l
23) rrange the folloing groups in descending order 2lt D3lt
D3lt DD and l
24) ssign or conguration to each of the folloing
structures
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i)
ii)
iii)
iv)
DDlt -ED E0E
1) What are alcohols o are they classied
2) What are monohydric alcohols o are they classied
4) Write the structures of folloing alcohols
i) 1Ethylcyclohexanol ii) ex3en2ol iii)yclohex2en1ol
iv) -entane1lt4diol
v) 2lt4imethylhexane1lt3lt$triol
$) Explain the folloing
i) -ropan1ol has higher oiling point than nutane
ii) ampethanol is more solule in ater than -ropan1ol
) Write the mechanism of hydration of ethylene to ethyl alcohol
+) -ropan1ol can not e prepared y acid catalyst hydration of
propenelt then ho is propene converted into propan1ol
)5) o is propanone converted into
i) -ropan2ol ii) 2ampethyl propan2ol
17) o ill you otain utan2ol from
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i) -ropanal ii) utan2one iii) ut2ene
11) o is propan1ol prepared from
i) -ropanal ii) -ropanoic acid
12) o is cyclopentanol prepared from
i) yclopentanone ii) yclopentene
14) Write the mechanism of acid catalysed dehydration of ethanol
to give ethane
1$) Write the structure of aldehyde lt caroxylic acid and ester
that yield folloing alcohol
1+) o ill you prepare
i) 2ampethylutane1ol from an al8ene
ii) cyclohexylmethanol from a Grignard reagent
iii) 1phenylethanol from acetaldehyde
1) o are folloing conversions rought aout
i) en=yl chloride to en=yl alcohol
ii) en=yl alcohol to en=oic acid
iii) 1Ethylcyclohexanol from yclohexanone
15) What are phenols o are they classied
27)21) Give the structures and (- names of isomeric phenols
represented y the molecular formula 17D
22) o is phenol prepared from
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i) hloroen=ene ii) (sopropyl en=ene iii) en=ene sulphonic
acid iv) aniline
23 ) Explain the folloing
i) -henol is more acidic than phenol
ii) onitrophenol is more acidic than ocresol
iii) pnitrophenol is less volatile than onitrophenol
24) Explain the folloing reactions of phenol
i) FoleBs reaction ii) iemer0iemann reaction
2$) ame the reagents used to convert phenol intoi) picric acid ii) 2lt4lt0riromophenol iii) en=ene iv) ophenol
sulphonic acid
2) What is the action of folloing reagents on phenol i)
romine in 2 at lo temperature
ii) ilute nitric acid at room temperature iii) oncentrated
sulphuric acid at room temperature
2+) Give distinguish test eteen phenol and ethanol
2) What are ethers o are ethers classied
25) What is metamerism Give the structure and (- name of
metamers of 2ampethoxypropane
37) Write the mechanism for acidic dehydration of ethanol
31) o is diethyl ether prepared y continuous ethericationprocess Why is the process so called
32) o ill you prepared methoxyethane from
i) l8yl halide ii) ia=omethane
33) tate the important uses of i) -henol ii) diethyl ether
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34) Write the mechanism of action of hydrogen romide on tert
utyl methyl ether
3$) Explain the folloing reactions of anisole
i) romination ii) itration iii) 6riedelrafts al8ylation iv)6riedelrafts acylation
3) Explainlt i) 0he OD group attached to aromatic ring in
phenols and ii) 0he al8oxy group in al8yl aryl ethers are ortholt
para directing and activate the aromatic ring toars electrophilic
sustitution
3+) Write the chemical eCuations for Williamson synthesis of 2
Ethoxy2methypentane starting from ethanol and 2ampethylpentan2ol
3) n organic compound ith the formula 417D3 shos
properties of ether and alcohol hen treated ith an excess of
r yields only one compound 1lt2 diromomethane Write
structural formula of ether and that of alcohol
ALDEHYDES ETONES AND CABO$YLIC
ACID
1) Write the structure and give (- names of the folloing
compounds
i) chloropropionaldehyde
ii) Rhydroxyutyraldehyde
iii) isoutyraldehyde
iv) Rmethylvaleraldehyde
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v) isopropyl methyl 8etone
vi) diisopropyl 8etone
vii) mromoen=aldehyde
viii) dien=yl 8etone
ix) divinyl 8etone
x) allyl methyl 8etone
xi) ethyl phenyl 8etone
xii) nutyrophenone
2) Write the structure of folloing compounds
i) 4ampethyl3nitroen=ophenone ii) 2ampethyl4oxopentanal iii)
3Dxopentanoic acid iv) 4chloropropiophenone v) 3
ampethoxyutanal vi) 4ydroxycyclohaxane caraldehyde
3) o ill you prepare i) propiophenone from propanenitrile ii)
4chloroen=aldehyde from 4chlorotoluene iii)
yclohaxanecaraldehyde from cyclohexylmethanol iv) 4
methoxyacetophenone from anisole v) 4methylen=aldehydefrom toluene
4) rrange the folloing compounds in the increasing order of
their oiling points
i) dimethyl etherlt ethyl alcohollt propanelt acetaldehyde
ii) acetonelt npropyl alcohollt ethyl methyl alcohol and nutane
$) What is the action of hydrogen cyanide in asic medium on i)utanone ii) 2lt4dichloroen=aldehyde
) What is the action of folloing compounds on cyclohexanone in
presence of dry hydrogen chloride
i) ethyl alcohol ii) ethylene glycol
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+) Write the structure of product in the folloing reactions
i) 322D3
ii) $2D3
) Write the structures of caronyl compounds and ammonia
derivatives that comine to give folloing imines
i)
ii)
iii)
iv)v)
vi)
5) Write the chemical eCuations for aldol condensation or
anni==aro reaction that folloing compounds undergo
i) -ropanal ii) 2ampethylpropanal iii) -entanal iv) 3
ampethylutanal v) cetophenonevi) pampethoxyen=aldehyde vii) 2ampethylcyclohaxanone viii)
chloral ix) yclopentanone
x) -henyl acetaldehyde xi) 1-henylpropan1one
17) Write the structure of the maKor product of the folloing
crossed aldol condensation
i) formaldehyde and propionaldehydeii) en=aldehyde ith acetone
11) (dentify the compounds SBlt SB and SB in the folloing
reactions and rerite the complete eCuations
i)
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ii)
12)o ill you eect folloing tostep conversions
i) -ropanal into utanone ii) utanone into ut2ene iii)
en=ene into mromoacetophenone iv) ex3yne into exan
3one v) en=oic acid into mnitroen=ylalcohol
13) o ill you convert en=aldehyde into folloing compounds
ampore than one steps may e reCuired
i) en=ophenone ii) en=oic acid iii) 3-henylpropan1ol iv)hydroxyphenylacetic acid
14) Give a chemical test to distinguish eteen folloing pairs of
compounds
i) Ethanal and propanone ii) -rpopanal and propanone iii)
-entane2one and pentane3one
1$) Write the structure and (- names of folloing caroxylicacids
i) ltRdimethylutanoic acid ii) Rphenylutyric acid iii) 1038389
chloromethylvaleric acid
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1$) alculate the mass in grams of an impurity of molar mass
177gmol1 hich ould e reCuired to raise the oiling point of
$7g of chloroform y737F
F for chloroformA 33F 8g mol
1
)1) oiling point of a solvent is 72 When 7415g of the solute
of molar mass 2$24g mol1 as dissolved in +$g of the solventlt
the oiling point of the solution as found to e 72$ 6ind
the molal elevation constant
1+) 7ml of glacial acetic acid ith density 17gm 1 is
dissolved in 18g ater and the solution fro=e at 7727$
alculate vant o factor and F f for ater is1F 8g mol1
1) enryBs la constant for soluility of methane in en=ene is
42+ 17$mm g at constant temperature alculate the
soluility of methane at +7mm g pressure at same
temperature
CHEMICAL THERMODYNAMICS AND ENERGIES
Theory
1)ene the terms systemlt surroundinglt open systemlt close
systemlt isolated systemlt exothermic reactionslt endothermic
reactionslt extensive properties and intensive properties
2) Explain the term state function Give to examples of state
functions and to example of path function
3) Explain thermodynamics eCuilirium
4) istinguish eteen isothermal and adiaatic process
$) What is a reversile process What are its features
) ho that pressure times volume is eCual to or8
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+) erive the expression for or8 hen a gas expands against
constant external pressure
) lassify the folloing reactions according to or8 done y the
systemlt on the system and no or8 done if pressure is constanta) 2g) H l2g) 2lg)
) 3D2g) 2D3g)
c) 2D2g) D2g)H 2D3g)
d) ampgD3s) H ampgDs) D2g)
e) 4D3s) H 2Dg) 22Dg)
5) What is the dierence dierence eteen and What is
the sign of for exothermic and endothermic reactions nder
hat circumstances
17) What are the sign convention for C and W
11) Explain the concept of maximum or8
12) free expansion of a gas results into no or8 Explain
13) erive the expression for maximum or8
14) ene enthalpy t constant pressure sho that A
1$) (t is di9cult to calculate lt hoever can e easily
determined Why Explain giving examples
1) tate rst la of thermodynamics Iustify its mathematical
eCuation
1+) Dtain the relationship eteen and for a chemical
reaction
1) What is the expression for or8 done in a chemical reaction
Explain the meaning of each term
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a) dissolution of sugar in hot coee
) separation of r and Fr from their mixture
c) spreading of fragrance hen a ottle of perfume is opened
d) Jo of heat from cold oKect to hot oKect
e) heat transfer from ice to room at 2$
37) ene entropy Give its units What does entropy measures
31)Explain ho entropy changes in the folloing processes
a) free=ing of liCuid
) sulimation of solid
c) dissolving of ater in sugar
d) condensation of vapour
32) Which memer of the folloing pairs have larger entropy
Why
a) D2s) or D2g)
) 3Dl) or 2$D2$l)
c) Dg) or 2D4g)
d) eg) or Frg)
e) as) or als)
33) Why is it more convenience to predict spontaneity of reaction
in terms of Gsys rather than total34) ene Gis energy and change in Gis energy What are
the units of Gis energy
3$) tate second la of thermodynamics in terms of entropy and
express it mathematically
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3) tate third la of thermodynamics What is its usefulness
3+) Why is it impossile for any sustance to have an asolute
entropy =ero at temperature greater than 7F
3) (t is impossile for a reaction to e spontaneous yetexothermic Explain ith example
35) (s it possile for a reaction to e nonspontaneous yet
exothermic Explain ith example
47) -redict the sign of in the folloing process Give reasons
for your anser
a) 2D4g) 2D2g)) 6e2D3s) H 32g) 26es) H 32Dg)
c) 2g) H 32g) 23g)
d) ampgD3s) 23g)
e) D2g) D2s)
f) l2g) 2lg)
41) What can e said aout the spontaneity of reactions hen
a) and are oth positive
) and oth are negative
c) is positive and is negative
d) is negative and is positive
42) (dentify hich memer of the folloing pairs has largerentropy Why
a) eg) in a volume of 1 or eg) in a volume of $ oth at 2$
) D2g) at 1atm or D2g) at 17atm oth at the same temperature
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c) 2$Dl) or 2$Dg)
d) $ moles of e or 2 moles of e
43) What are the signs of for the folloing reaction
Explain ith reasons
2g) 2g)
44) erive the relationship eteen G and total
4$) Iustify the inclusion of Crev and 0 in the denition of entropylt
A Crevgt 0
4) 0he increase in entropy of a system alone does not guarantee
the spontaneity of a process Explain
4+) 0he criterion of spontaneity in terms of Gis energy is the
same as that laid don y second la of thermodynamic o
PROBLEMS
1) 0hree moles of an ideal gas are expanded isothermally from a
volume of 377cm3 to 2$ at 377F against a pressure of 15atm
alculate the or8 done in atm and Koules2) Dne mole of an ideal gas is compressed from $77cm3 against a
constant pressure of 121 17$-a 0he or8 involved in the
process is 3$7I alculate the nal volume
3) alculate the maximum or8 hen 24g of oxygen are
expanded isothermally and reversily from a pressure of 1
17$-a to 1778-a at 25F
4) 0hree moles of an ideal gas are compressed isothermally andreversily to a volume of 2 0he or8 done is 2538I at 22
alculate the initial volume of a gas
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$) 2 172 8g of nitrogen is expanded isothermally and
reversily at 377F from 1$1$ 17$ m 2 hen the or8 done is
found to e 1+338 I 6ind the nal pressure
) sample of a gas asors 47778I of heata) if volume remains constantlt hat is
) uppose that in addition to asorption of heat y the samplelt
the surrounding does 27778I of or8 on the samplelt hat is
c) uppose that as the original sample asors heatlt it expands
against atmospheric pressure and does 778 I of or8 on its
surroundings What is
+) alculate the or8 done in each of the folloing reactions
tate hether or8 is done on or y the system
a) 0he oxidation of one mole of D2 at $7
2D2g) H D2g) 2D3g)
) decomposition of 2 moles of 4D3 at 177
4D3s) 2Dg) H 22Dg)
) 0he enthalpy change for the reaction
24g) H 2g) 2g) is 27I hen 177m of ethylene and
177m of 2 react at 1atm pressure alculate the pressure
volume or8 and
5) alculate standard enthalpy of the reaction
6e2D3s) H 3Dg) 26es) H 3D2g) from the folloing data
f 76e2D3)A2428Imol1ltf 7D)A117$8Imol1lt
f 7D2)A353$8Imol1
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8112019 Chemistry Question 12sci (1)
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Electro chemitry
Theory
1ene the terms resistivitylt conductivity and molar
conductivity Give its ( units
2Explain the terms conductivity and molar conductivity o are
they interrelated
3Why does conductivity of s solution decrease on dilution of a
solution
4o does molar conductivity of an electrolyte vary ith
concentration
$o does the variation in molar conductivity of an electrolyte
ith concentration diers for strong and ea8 electrolytes
Explain the dierent ehaviour of strong and ea8 electrolytes
toards the variation of conductivity ith concentration
+tate and explain Fohlrausch la of independent migration of
ions o it is useful to determine the molar conductivity of ea8
electrolytes at =ero concentration
o is the molar conductivity of strong electrolytes at =ero
concentration determined y graphical method Why is this
method not useful for ea8 electrolytes
5What is cell constant What is its unit o is it determined
17ene anode and cathode
11 Why is cathode in electrolytic cell considered to e negative
and anode positive
12 -redict the half cell reactions that occur hen fused Fl is
electroly=ed in a cell ith inert electrodes What is the overall cell
reaction
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13 tate 6aradayBs las of electrolysis
14o ill you calculate the numer of moles of electrons
actually passed and mass of the sustance produced during
electrolysis of a salt solution using reaction stoichiometry1$o many electrons ill have a total charge of 1 coulom
1 o many faradayBs ould e reCuired to plate out 177 mole
of free metal from the folloing cations
a) ampg2H
) r3H
c) -2H
d) uH
1+ ene coulom and faraday
1 escrie the electrolysis of molten al using inert
electrodes
15 What is the dierence eteen electrolytic cell and voltaic
cell
27 Why is anode in galvanic cell considered to e negative and
cathode positive electrode
21 8etch the cell for the electrolysis of molten al (ndicate
cathodelt anode and their signs ho the Jo of electrons and
ions
22 What is salt ridge What are its functions in galvanic cell
23 What are the conventions used to rite cell diagramcell
formula)
24 escrie the construction of aniel cell Write electrode half
reactions and net cell reaction in aniel cell
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2$ escrie the folloing types of electrodes giving one
examplelt ith reference to formulationlt electrode reaction and
ernst eCuation for electrode potential
a) metalsparingly salt electrode) gas electrode
2 What is redox electrode Give one example ith formulationlt
electrode reaction and ernst eCuation for electrode potential
2+ ene the terms oxidation potentiallt reduction potential and
cell potential
2 What conditions are reCuired for a cell potential to e calledstandard cell potential
25 6ormulate a cell for each of the folloing electrode reactions
a) n2H aC) H 2gl s) L n4H aC) H 2gs) H2l aC)
) ampg s) H r2l) L ampg2H aC) H 2r aC)
37 6ormulate a cell from the folloing electrode reactions
a) l2g) H 2e L 2l aC)
) 2( aC) L (2s) H 2e
31 What are standard electrode potential and standard emf of
the galvanic cell
32 Write ernst eCuation and explain the terms involved in it
What part of the eCuation represents the correction factor for
nonstandard state conditions
33 Write ernst eCuation for the folloing reactions
a) rs) H 36e3H aC) L r3H aC) H 36e2H aC)
) l3H aC) H 3e L l s)
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34 onsider the folloing E7 values and half reactions
(2s) H 2e L 2( aC) E7A7$3$M
u2H aC) H 2e L u s) E7A733+M
d2H aC) H 2e L ds) E7A77473
a) Which of the metals or nonmetals or ions is the strongest
oxidi=ing agent and hich is the strongest reducing agent
) 0he half reactions can e used to construct three galvanic
cells Which ill have the highest cell potential
3$ -redict hether
a) gH can oxidi=e - to -2H under standard state condition
) E7gA7+55M and E7
-A712M
3 -redict hether the folloing reactions occur under standard
state conditions
a) Dxidation of gs) y l2g) E7gA7Mlt E7
l2A13M
) eduction of 6e
3H
to 6e
2H
y us) E
7
6e3Hlt 6e2H A 7++MltE7uA14M
3+ 8etch and descrie the operation of
a) dry cell
) 2D2 fuel cell
3 What are the advantages and disadvantages of fuel cells
35 8etch lead storage cell
47 Write electrode reaction and overall cell reaction during the
operation of lead storage cell
41 Write electrode reaction and overall cell reaction hen lead
accumulator ehaves as an electrolytic cell
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42 o can ernst eCuation e used to sho that electrode
potential is eCual to the standard electrode potential y putting
approximate values in ernst eCuation se u2HNd half cell for
illustration
43 o are G7lt E7cell and eCuilirium constant related for a
particular reaction
44 Why is eCuilirium constant related to E7cell and not Ecell
4$ G7 for a redox reaction depends on the numer of electrons
transferred Explain
4 o does the eCuiliriumlt G7An6E7 explain that an
electrical potential is an intensive property
4+ Write shorthand notation for the cell for each of the folloing
reactions
a) u2H aC) H 2gs) H 2r L u s) H 2gr s)
) n2H aC) is oxidi=ed y r2 l)
4 rrange the folloing reducing agents in order of increasing
strength under standard state conditions 0he standard potentialsfor the reduction half reactions are given
gH aC) 7M)lt l3H aC) 1M)lt 62g) 2+M)lt l2g) 13M)lt
(2s) 7$4M)lt d2H aC) 74M)
45 rrange the folloing oxidi=ing agents in order of increasing
strength under standard state conditions 0he standard potentials
for the reduction half reactions are given
ls) 1M)lt l aC) 13M)lt us) 734M)lt 6es)744M)lt r
aC) 175M)lt is) 72M)
$7 Which species in each of the folloing pairs is etter oxidi=ing
agent under standard state conditions standard potential are
given) Give reasons for your anser
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a) r2l) 175M) or u3H 14M)
) H aC) or gH aC) 7M)
c) -2H aC) 713M) or o2H 72M)
d) l2 g) 13M) or r3H 7+4M)
$1 Which species in each of the folloing pairs is etter reducing
agent under standard conditions E7 values are given Give
reasons for your anser
a) Fs) 2353M) or ampgs) 23M)
) o2H aC) 11M) or (n s) 714M)
c) e3H aC) 11M) or 0i2H73+M)
d) gl) 7M) or is) 723M)
PROBLEMS
1 conductivity cell lled ith 771amp Fl given at 2$o the
resistance of 74ohms 0he conductivity of Fl at 2$
o
is 7777
CHEMISTRY
d f O DF EEampE0
1) What are dloc8 elements
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2) What are floc8 elements
3) Explain the meaning of
i) 0ransition series ii) (nner transition element
4) Explain the position of the folloing in periodic tale
i) dloc8 elements ii) anthanoids iii) ctinoids
$) Explain the oxidation state of 1st ro elements of transition
series
) Explain the oxidation states of lanthanoids and actinoids
+) Why do lanthanoids form coloured compounds ) Explainlt most of the transition metal compounds are
remar8aly coloured
5) Why chromium has electronic conguration 3d$ 4s1 and not 3d4
4s2
17) Why does copper sho anormal electronic conguration
11) Explainlt the trends in atomic and ionic si=es of lanthanoidsand also of 1st ro elements of transition series
12) What are actinoids
13) What are transuranic elements Write their name
14) Why transition elements sho tendency to form large numer
of complexes
1$) Explain the compounds of copper ((() are coloured ut thoseof =inc are colourless
1) o is potassium dichromate prepared from chrome ion
1+) Write the preparationlt properties and use of potassium
permanganate
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1) Explainlt hy -t(M) complexes are generally octahedral hile
-t(() complexes are sCuare planar
15) ierentiate eteen lanthanoids and actinoids
27) What are chemical tins Give examples
21) Explain hy Gd3H is colourless
COORDINATION COMPOUNDS
1) What is the dierence eteen doule salt and coordinationcompounds
2) Explainlt hy 6e4)2 D4)22D) is a salt ut F 4P6e)Q is a
complex compound
3) Write the formula of the folloing complexes
i) alcium hexa cyano ferrate (()
ii) iammine dichloro platinum
iii) is ethylene diammine) dichloro iridium ((() ion
iv) -entamine caronato chromium ((() D(E
v) 0risethylene diammine ) coalt((() sulphate
vi) iamine ethylene diammine nic8el (() acetate
4) Write the rules hich are applied hile riting the formulas of
coordination compounds
$) ene the terms
i) entral metal atomgtion
ii) igand
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iii) oordination compound
iv) oordination sphere
v) oordination numer
vi) oordination polyhedral
vii) omoleptic and heteroleptic complexes
viii) harge on the complexes
ix) oordination entity
) Write (- name of the folloing complexes
i) Pr2D)4 l2QD3
ii) P-ten)l4Q
iii) F 2Pi)4Q
iv) sP6el4Q
v) rl3-y)3
vi) F 3Po2D4)3Q
vii) Por2en)2Q
viii) P-tl4Q2
ix) Po2D))en)2Q2H
x) F 3Pl2D4)3Q
+) Explain the importance of principles of additive nomenclature
) (dentify the folloing ions y a simple test forming complex
compound
i) u2H ii) i2H iii) 6e3H iv) o2H
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5) Dn the asis of WernerBs theory explainlt hy coalt amine
complexlt ol343 hen treated ith gD3 solution
precipitates only one ion even though there are three ions
17) alculate the eective atomic numer E) of the centralmetal atom in the folloing compounds
i) F 3P6e)Q ii) rD)
11) Write the postulates of WernerBs theory
12) Explain the onding in ol333 and ol3$3
13) Explain stereoisomerism in metal complexes ith coordination
numer 4 and 14) Why the tetrahedral complexes do not exhiit geometrical
isomerism
1$) ra cis and trans geometrical isomers of
i) dichlororomo iodo palladium (() ion
ii) P-t(()3)2l2Q
iii) Po((()3)l3Q
iv) Po((()3)42D)lQ2H
1) ra all possile geometrical isomers of P-t(M)
3)2-y)2l2Q2H ion
1+) Write oxidation statelt coordination numer and electronic
conguration of the metal atom in the folloing complexes
i) rl3-y)3 ii) F 4Pampn)Q
1) lassify the folloing ligands into monodentatelt polydentate
and amidentate
i) 3 ii) iii) iv) v) D2 vi) ethylene diammine
vii) oxalate
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viii) triaminotriethylamine
15) ol3$32D is a pin8 solidlt the solution of this salt is also
pin8 and formed 3mol of gl ith silver nitrate solution Dn
heating pin8 solidlt it loses one ater molecule and forms purplesolid having same ratio of o3l as that of pin8 solid 0he
purple solid hen dissolved in ater and treated ith forms 1 mol
of gl ra the structure and name of the pin8 and purple
solids
27) ame the octahedral complex ions
i) Po2D4) en)2QH ii) transPr)4 3)2Q
21) ra the structures of the folloing complexes
i) Pol4Q2 ii) Pampn3)Q2H iii) P-tlQ iv) iD)4 v) Pi)4Q2
22) (n an octahedral crystal eldlt dra the gure to sho splitting
of dorital
23) What are ea8 eld and strong eld ligands What is spectro
chemical series
24) Pi)4Q2 is diamagnetic hile Pr3)Q3H is paramagnetltexplain
2$) Dn the asis of valence ond theory explain the nature of
onding in the folloing complexes
i) Po6Q3 ii) Po2D4)3Q3
2) lue coloured copper sulphate solution gave folloing
experimental results Explain the same
i) With aCueous potassium chloride it gave right green solution
ii) With aCueous potassium Juoride it gave a green precipitate
2+) ra the structures of optically active isomers of Poen)3Q3H
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2) ra the geometrical and optical isomers of
i) Pol2en)2QH ii) Polen)23)Q2H
25) What is lin8age isomerism Explain ith an example
37) What are hydrate isomers Explain ith examples
31) Explain the structure of
i) upraammonium sulphate ii) Po3)Q3H
32) What are the limitations of valence ond theory
33) Explain the magnetic properties of coordination compounds
34) Write the salient features of crystal eld theory What are itslimitations
3$) Explain the octahedral geometry of complexes using crystal
eld theory
3) Write a note on colours in coordination compounds
3+) Explain the factors aecting the staility of coordination
compound3) Write rief the applications of coordination compounds
HALOGEN DERIVATIVES O ALANES AND ARENES
1) What are al8yl halides o are they classied
2) Write (- names of the folloing compounds
i)
ii) 2Al
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iii)
iv)
v)
vi) secutyl chloride
vii) neopentyl romide
viii) tutyl iodide
ix) isopropyl romide
3) o is ethyl romide prepared from
i) Ethyl alcohol ii) ethane iii) ethane
4)Write the preparation of isopropyl chloride using the folloing
reagents
i) -l3 ii) -l$ iii) l2 iv) l v) Dl2
$) o is group replaced y folloing functional rroups
i) OD ii) O iii) O iv) O2
) Write a note on
i) andmeyerBs reaction ii) Wurt= reaction iii) 6in8elstein reaction
iv) 6ittig reaction v) 6riedel raft reaction
+) (dentify and in the folloing
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) Give the structures of the folloing compounds
i) 3romo2methyl pentane ii) 2romo3ethyl hexane iii) 1
holo utane
iv) pichloroen=ene v) 1lt1lt10richloroethane
5) student has performed an experiment in the laoratory e
mixed ater ith hexane and found to layers separated econd
time he mixed chloroform ith ater and he again found to
layers in the test tue Explain hich ill e upper layer and
hich one ill e loer layer in oth the experiments
17) onvert 1hloroutane into the folloing compounds
i) utane1ol ii) 1(odoutane iii) 3222 iv)
11) 6or each pair of compoundslt state hich compound is etter
2 sustrate
i) 2romoutanelt isopropyl romide ii) 1(odo2lt2dimethyl
propane or isopropyl iodide
12) hoose the memer that ill react faster from the folloing
pairs y 1 mechanism
13) -redict the expected product of sustitution reaction
i) isoutyl chloride mH sodium ethoxide
ii) nutyl chloride H sodium
iii) 1hloro propane H aC potassium hydroxide
iv) aniline H aD2gt l
14) Write the products
i) $22A2 H r L
ii) $A2 H r
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iii)
iv)
v)
1$) (dentify the chiral and achiral molecules
i)
ii)
iii)
1) iscuss 2 mechanism of methyl romide using aCueous
FD ra energy prole diagram1+) Write the mechanism of the reaction hen tutyl chloride is
treated ith aCueous FD ith energy prole diagram
1) ierentiate eteen 1 and 2 mechanism
15) Explain the nature of ond in
i) 322 ii)
27) What are uses of
i) 0 ii) (odoform iii) hloroform iv) aron tetrachloride
21) l8yl halides are polar and miscile ith aterlt explain
22) Which one of the folloing is more easily hydrolysed y
aCueous FD
$l$ and $2l
23) rrange the folloing groups in descending order 2lt D3lt
D3lt DD and l
24) ssign or conguration to each of the folloing
structures
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i)
ii)
iii)
iv)
DDlt -ED E0E
1) What are alcohols o are they classied
2) What are monohydric alcohols o are they classied
4) Write the structures of folloing alcohols
i) 1Ethylcyclohexanol ii) ex3en2ol iii)yclohex2en1ol
iv) -entane1lt4diol
v) 2lt4imethylhexane1lt3lt$triol
$) Explain the folloing
i) -ropan1ol has higher oiling point than nutane
ii) ampethanol is more solule in ater than -ropan1ol
) Write the mechanism of hydration of ethylene to ethyl alcohol
+) -ropan1ol can not e prepared y acid catalyst hydration of
propenelt then ho is propene converted into propan1ol
)5) o is propanone converted into
i) -ropan2ol ii) 2ampethyl propan2ol
17) o ill you otain utan2ol from
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i) -ropanal ii) utan2one iii) ut2ene
11) o is propan1ol prepared from
i) -ropanal ii) -ropanoic acid
12) o is cyclopentanol prepared from
i) yclopentanone ii) yclopentene
14) Write the mechanism of acid catalysed dehydration of ethanol
to give ethane
1$) Write the structure of aldehyde lt caroxylic acid and ester
that yield folloing alcohol
1+) o ill you prepare
i) 2ampethylutane1ol from an al8ene
ii) cyclohexylmethanol from a Grignard reagent
iii) 1phenylethanol from acetaldehyde
1) o are folloing conversions rought aout
i) en=yl chloride to en=yl alcohol
ii) en=yl alcohol to en=oic acid
iii) 1Ethylcyclohexanol from yclohexanone
15) What are phenols o are they classied
27)21) Give the structures and (- names of isomeric phenols
represented y the molecular formula 17D
22) o is phenol prepared from
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i) hloroen=ene ii) (sopropyl en=ene iii) en=ene sulphonic
acid iv) aniline
23 ) Explain the folloing
i) -henol is more acidic than phenol
ii) onitrophenol is more acidic than ocresol
iii) pnitrophenol is less volatile than onitrophenol
24) Explain the folloing reactions of phenol
i) FoleBs reaction ii) iemer0iemann reaction
2$) ame the reagents used to convert phenol intoi) picric acid ii) 2lt4lt0riromophenol iii) en=ene iv) ophenol
sulphonic acid
2) What is the action of folloing reagents on phenol i)
romine in 2 at lo temperature
ii) ilute nitric acid at room temperature iii) oncentrated
sulphuric acid at room temperature
2+) Give distinguish test eteen phenol and ethanol
2) What are ethers o are ethers classied
25) What is metamerism Give the structure and (- name of
metamers of 2ampethoxypropane
37) Write the mechanism for acidic dehydration of ethanol
31) o is diethyl ether prepared y continuous ethericationprocess Why is the process so called
32) o ill you prepared methoxyethane from
i) l8yl halide ii) ia=omethane
33) tate the important uses of i) -henol ii) diethyl ether
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34) Write the mechanism of action of hydrogen romide on tert
utyl methyl ether
3$) Explain the folloing reactions of anisole
i) romination ii) itration iii) 6riedelrafts al8ylation iv)6riedelrafts acylation
3) Explainlt i) 0he OD group attached to aromatic ring in
phenols and ii) 0he al8oxy group in al8yl aryl ethers are ortholt
para directing and activate the aromatic ring toars electrophilic
sustitution
3+) Write the chemical eCuations for Williamson synthesis of 2
Ethoxy2methypentane starting from ethanol and 2ampethylpentan2ol
3) n organic compound ith the formula 417D3 shos
properties of ether and alcohol hen treated ith an excess of
r yields only one compound 1lt2 diromomethane Write
structural formula of ether and that of alcohol
ALDEHYDES ETONES AND CABO$YLIC
ACID
1) Write the structure and give (- names of the folloing
compounds
i) chloropropionaldehyde
ii) Rhydroxyutyraldehyde
iii) isoutyraldehyde
iv) Rmethylvaleraldehyde
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v) isopropyl methyl 8etone
vi) diisopropyl 8etone
vii) mromoen=aldehyde
viii) dien=yl 8etone
ix) divinyl 8etone
x) allyl methyl 8etone
xi) ethyl phenyl 8etone
xii) nutyrophenone
2) Write the structure of folloing compounds
i) 4ampethyl3nitroen=ophenone ii) 2ampethyl4oxopentanal iii)
3Dxopentanoic acid iv) 4chloropropiophenone v) 3
ampethoxyutanal vi) 4ydroxycyclohaxane caraldehyde
3) o ill you prepare i) propiophenone from propanenitrile ii)
4chloroen=aldehyde from 4chlorotoluene iii)
yclohaxanecaraldehyde from cyclohexylmethanol iv) 4
methoxyacetophenone from anisole v) 4methylen=aldehydefrom toluene
4) rrange the folloing compounds in the increasing order of
their oiling points
i) dimethyl etherlt ethyl alcohollt propanelt acetaldehyde
ii) acetonelt npropyl alcohollt ethyl methyl alcohol and nutane
$) What is the action of hydrogen cyanide in asic medium on i)utanone ii) 2lt4dichloroen=aldehyde
) What is the action of folloing compounds on cyclohexanone in
presence of dry hydrogen chloride
i) ethyl alcohol ii) ethylene glycol
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+) Write the structure of product in the folloing reactions
i) 322D3
ii) $2D3
) Write the structures of caronyl compounds and ammonia
derivatives that comine to give folloing imines
i)
ii)
iii)
iv)v)
vi)
5) Write the chemical eCuations for aldol condensation or
anni==aro reaction that folloing compounds undergo
i) -ropanal ii) 2ampethylpropanal iii) -entanal iv) 3
ampethylutanal v) cetophenonevi) pampethoxyen=aldehyde vii) 2ampethylcyclohaxanone viii)
chloral ix) yclopentanone
x) -henyl acetaldehyde xi) 1-henylpropan1one
17) Write the structure of the maKor product of the folloing
crossed aldol condensation
i) formaldehyde and propionaldehydeii) en=aldehyde ith acetone
11) (dentify the compounds SBlt SB and SB in the folloing
reactions and rerite the complete eCuations
i)
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ii)
12)o ill you eect folloing tostep conversions
i) -ropanal into utanone ii) utanone into ut2ene iii)
en=ene into mromoacetophenone iv) ex3yne into exan
3one v) en=oic acid into mnitroen=ylalcohol
13) o ill you convert en=aldehyde into folloing compounds
ampore than one steps may e reCuired
i) en=ophenone ii) en=oic acid iii) 3-henylpropan1ol iv)hydroxyphenylacetic acid
14) Give a chemical test to distinguish eteen folloing pairs of
compounds
i) Ethanal and propanone ii) -rpopanal and propanone iii)
-entane2one and pentane3one
1$) Write the structure and (- names of folloing caroxylicacids
i) ltRdimethylutanoic acid ii) Rphenylutyric acid iii) 1038389
chloromethylvaleric acid
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+) erive the expression for or8 hen a gas expands against
constant external pressure
) lassify the folloing reactions according to or8 done y the
systemlt on the system and no or8 done if pressure is constanta) 2g) H l2g) 2lg)
) 3D2g) 2D3g)
c) 2D2g) D2g)H 2D3g)
d) ampgD3s) H ampgDs) D2g)
e) 4D3s) H 2Dg) 22Dg)
5) What is the dierence dierence eteen and What is
the sign of for exothermic and endothermic reactions nder
hat circumstances
17) What are the sign convention for C and W
11) Explain the concept of maximum or8
12) free expansion of a gas results into no or8 Explain
13) erive the expression for maximum or8
14) ene enthalpy t constant pressure sho that A
1$) (t is di9cult to calculate lt hoever can e easily
determined Why Explain giving examples
1) tate rst la of thermodynamics Iustify its mathematical
eCuation
1+) Dtain the relationship eteen and for a chemical
reaction
1) What is the expression for or8 done in a chemical reaction
Explain the meaning of each term
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a) dissolution of sugar in hot coee
) separation of r and Fr from their mixture
c) spreading of fragrance hen a ottle of perfume is opened
d) Jo of heat from cold oKect to hot oKect
e) heat transfer from ice to room at 2$
37) ene entropy Give its units What does entropy measures
31)Explain ho entropy changes in the folloing processes
a) free=ing of liCuid
) sulimation of solid
c) dissolving of ater in sugar
d) condensation of vapour
32) Which memer of the folloing pairs have larger entropy
Why
a) D2s) or D2g)
) 3Dl) or 2$D2$l)
c) Dg) or 2D4g)
d) eg) or Frg)
e) as) or als)
33) Why is it more convenience to predict spontaneity of reaction
in terms of Gsys rather than total34) ene Gis energy and change in Gis energy What are
the units of Gis energy
3$) tate second la of thermodynamics in terms of entropy and
express it mathematically
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3) tate third la of thermodynamics What is its usefulness
3+) Why is it impossile for any sustance to have an asolute
entropy =ero at temperature greater than 7F
3) (t is impossile for a reaction to e spontaneous yetexothermic Explain ith example
35) (s it possile for a reaction to e nonspontaneous yet
exothermic Explain ith example
47) -redict the sign of in the folloing process Give reasons
for your anser
a) 2D4g) 2D2g)) 6e2D3s) H 32g) 26es) H 32Dg)
c) 2g) H 32g) 23g)
d) ampgD3s) 23g)
e) D2g) D2s)
f) l2g) 2lg)
41) What can e said aout the spontaneity of reactions hen
a) and are oth positive
) and oth are negative
c) is positive and is negative
d) is negative and is positive
42) (dentify hich memer of the folloing pairs has largerentropy Why
a) eg) in a volume of 1 or eg) in a volume of $ oth at 2$
) D2g) at 1atm or D2g) at 17atm oth at the same temperature
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c) 2$Dl) or 2$Dg)
d) $ moles of e or 2 moles of e
43) What are the signs of for the folloing reaction
Explain ith reasons
2g) 2g)
44) erive the relationship eteen G and total
4$) Iustify the inclusion of Crev and 0 in the denition of entropylt
A Crevgt 0
4) 0he increase in entropy of a system alone does not guarantee
the spontaneity of a process Explain
4+) 0he criterion of spontaneity in terms of Gis energy is the
same as that laid don y second la of thermodynamic o
PROBLEMS
1) 0hree moles of an ideal gas are expanded isothermally from a
volume of 377cm3 to 2$ at 377F against a pressure of 15atm
alculate the or8 done in atm and Koules2) Dne mole of an ideal gas is compressed from $77cm3 against a
constant pressure of 121 17$-a 0he or8 involved in the
process is 3$7I alculate the nal volume
3) alculate the maximum or8 hen 24g of oxygen are
expanded isothermally and reversily from a pressure of 1
17$-a to 1778-a at 25F
4) 0hree moles of an ideal gas are compressed isothermally andreversily to a volume of 2 0he or8 done is 2538I at 22
alculate the initial volume of a gas
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$) 2 172 8g of nitrogen is expanded isothermally and
reversily at 377F from 1$1$ 17$ m 2 hen the or8 done is
found to e 1+338 I 6ind the nal pressure
) sample of a gas asors 47778I of heata) if volume remains constantlt hat is
) uppose that in addition to asorption of heat y the samplelt
the surrounding does 27778I of or8 on the samplelt hat is
c) uppose that as the original sample asors heatlt it expands
against atmospheric pressure and does 778 I of or8 on its
surroundings What is
+) alculate the or8 done in each of the folloing reactions
tate hether or8 is done on or y the system
a) 0he oxidation of one mole of D2 at $7
2D2g) H D2g) 2D3g)
) decomposition of 2 moles of 4D3 at 177
4D3s) 2Dg) H 22Dg)
) 0he enthalpy change for the reaction
24g) H 2g) 2g) is 27I hen 177m of ethylene and
177m of 2 react at 1atm pressure alculate the pressure
volume or8 and
5) alculate standard enthalpy of the reaction
6e2D3s) H 3Dg) 26es) H 3D2g) from the folloing data
f 76e2D3)A2428Imol1ltf 7D)A117$8Imol1lt
f 7D2)A353$8Imol1
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8112019 Chemistry Question 12sci (1)
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Electro chemitry
Theory
1ene the terms resistivitylt conductivity and molar
conductivity Give its ( units
2Explain the terms conductivity and molar conductivity o are
they interrelated
3Why does conductivity of s solution decrease on dilution of a
solution
4o does molar conductivity of an electrolyte vary ith
concentration
$o does the variation in molar conductivity of an electrolyte
ith concentration diers for strong and ea8 electrolytes
Explain the dierent ehaviour of strong and ea8 electrolytes
toards the variation of conductivity ith concentration
+tate and explain Fohlrausch la of independent migration of
ions o it is useful to determine the molar conductivity of ea8
electrolytes at =ero concentration
o is the molar conductivity of strong electrolytes at =ero
concentration determined y graphical method Why is this
method not useful for ea8 electrolytes
5What is cell constant What is its unit o is it determined
17ene anode and cathode
11 Why is cathode in electrolytic cell considered to e negative
and anode positive
12 -redict the half cell reactions that occur hen fused Fl is
electroly=ed in a cell ith inert electrodes What is the overall cell
reaction
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13 tate 6aradayBs las of electrolysis
14o ill you calculate the numer of moles of electrons
actually passed and mass of the sustance produced during
electrolysis of a salt solution using reaction stoichiometry1$o many electrons ill have a total charge of 1 coulom
1 o many faradayBs ould e reCuired to plate out 177 mole
of free metal from the folloing cations
a) ampg2H
) r3H
c) -2H
d) uH
1+ ene coulom and faraday
1 escrie the electrolysis of molten al using inert
electrodes
15 What is the dierence eteen electrolytic cell and voltaic
cell
27 Why is anode in galvanic cell considered to e negative and
cathode positive electrode
21 8etch the cell for the electrolysis of molten al (ndicate
cathodelt anode and their signs ho the Jo of electrons and
ions
22 What is salt ridge What are its functions in galvanic cell
23 What are the conventions used to rite cell diagramcell
formula)
24 escrie the construction of aniel cell Write electrode half
reactions and net cell reaction in aniel cell
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2$ escrie the folloing types of electrodes giving one
examplelt ith reference to formulationlt electrode reaction and
ernst eCuation for electrode potential
a) metalsparingly salt electrode) gas electrode
2 What is redox electrode Give one example ith formulationlt
electrode reaction and ernst eCuation for electrode potential
2+ ene the terms oxidation potentiallt reduction potential and
cell potential
2 What conditions are reCuired for a cell potential to e calledstandard cell potential
25 6ormulate a cell for each of the folloing electrode reactions
a) n2H aC) H 2gl s) L n4H aC) H 2gs) H2l aC)
) ampg s) H r2l) L ampg2H aC) H 2r aC)
37 6ormulate a cell from the folloing electrode reactions
a) l2g) H 2e L 2l aC)
) 2( aC) L (2s) H 2e
31 What are standard electrode potential and standard emf of
the galvanic cell
32 Write ernst eCuation and explain the terms involved in it
What part of the eCuation represents the correction factor for
nonstandard state conditions
33 Write ernst eCuation for the folloing reactions
a) rs) H 36e3H aC) L r3H aC) H 36e2H aC)
) l3H aC) H 3e L l s)
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34 onsider the folloing E7 values and half reactions
(2s) H 2e L 2( aC) E7A7$3$M
u2H aC) H 2e L u s) E7A733+M
d2H aC) H 2e L ds) E7A77473
a) Which of the metals or nonmetals or ions is the strongest
oxidi=ing agent and hich is the strongest reducing agent
) 0he half reactions can e used to construct three galvanic
cells Which ill have the highest cell potential
3$ -redict hether
a) gH can oxidi=e - to -2H under standard state condition
) E7gA7+55M and E7
-A712M
3 -redict hether the folloing reactions occur under standard
state conditions
a) Dxidation of gs) y l2g) E7gA7Mlt E7
l2A13M
) eduction of 6e
3H
to 6e
2H
y us) E
7
6e3Hlt 6e2H A 7++MltE7uA14M
3+ 8etch and descrie the operation of
a) dry cell
) 2D2 fuel cell
3 What are the advantages and disadvantages of fuel cells
35 8etch lead storage cell
47 Write electrode reaction and overall cell reaction during the
operation of lead storage cell
41 Write electrode reaction and overall cell reaction hen lead
accumulator ehaves as an electrolytic cell
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42 o can ernst eCuation e used to sho that electrode
potential is eCual to the standard electrode potential y putting
approximate values in ernst eCuation se u2HNd half cell for
illustration
43 o are G7lt E7cell and eCuilirium constant related for a
particular reaction
44 Why is eCuilirium constant related to E7cell and not Ecell
4$ G7 for a redox reaction depends on the numer of electrons
transferred Explain
4 o does the eCuiliriumlt G7An6E7 explain that an
electrical potential is an intensive property
4+ Write shorthand notation for the cell for each of the folloing
reactions
a) u2H aC) H 2gs) H 2r L u s) H 2gr s)
) n2H aC) is oxidi=ed y r2 l)
4 rrange the folloing reducing agents in order of increasing
strength under standard state conditions 0he standard potentialsfor the reduction half reactions are given
gH aC) 7M)lt l3H aC) 1M)lt 62g) 2+M)lt l2g) 13M)lt
(2s) 7$4M)lt d2H aC) 74M)
45 rrange the folloing oxidi=ing agents in order of increasing
strength under standard state conditions 0he standard potentials
for the reduction half reactions are given
ls) 1M)lt l aC) 13M)lt us) 734M)lt 6es)744M)lt r
aC) 175M)lt is) 72M)
$7 Which species in each of the folloing pairs is etter oxidi=ing
agent under standard state conditions standard potential are
given) Give reasons for your anser
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a) r2l) 175M) or u3H 14M)
) H aC) or gH aC) 7M)
c) -2H aC) 713M) or o2H 72M)
d) l2 g) 13M) or r3H 7+4M)
$1 Which species in each of the folloing pairs is etter reducing
agent under standard conditions E7 values are given Give
reasons for your anser
a) Fs) 2353M) or ampgs) 23M)
) o2H aC) 11M) or (n s) 714M)
c) e3H aC) 11M) or 0i2H73+M)
d) gl) 7M) or is) 723M)
PROBLEMS
1 conductivity cell lled ith 771amp Fl given at 2$o the
resistance of 74ohms 0he conductivity of Fl at 2$
o
is 7777
CHEMISTRY
d f O DF EEampE0
1) What are dloc8 elements
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2) What are floc8 elements
3) Explain the meaning of
i) 0ransition series ii) (nner transition element
4) Explain the position of the folloing in periodic tale
i) dloc8 elements ii) anthanoids iii) ctinoids
$) Explain the oxidation state of 1st ro elements of transition
series
) Explain the oxidation states of lanthanoids and actinoids
+) Why do lanthanoids form coloured compounds ) Explainlt most of the transition metal compounds are
remar8aly coloured
5) Why chromium has electronic conguration 3d$ 4s1 and not 3d4
4s2
17) Why does copper sho anormal electronic conguration
11) Explainlt the trends in atomic and ionic si=es of lanthanoidsand also of 1st ro elements of transition series
12) What are actinoids
13) What are transuranic elements Write their name
14) Why transition elements sho tendency to form large numer
of complexes
1$) Explain the compounds of copper ((() are coloured ut thoseof =inc are colourless
1) o is potassium dichromate prepared from chrome ion
1+) Write the preparationlt properties and use of potassium
permanganate
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1) Explainlt hy -t(M) complexes are generally octahedral hile
-t(() complexes are sCuare planar
15) ierentiate eteen lanthanoids and actinoids
27) What are chemical tins Give examples
21) Explain hy Gd3H is colourless
COORDINATION COMPOUNDS
1) What is the dierence eteen doule salt and coordinationcompounds
2) Explainlt hy 6e4)2 D4)22D) is a salt ut F 4P6e)Q is a
complex compound
3) Write the formula of the folloing complexes
i) alcium hexa cyano ferrate (()
ii) iammine dichloro platinum
iii) is ethylene diammine) dichloro iridium ((() ion
iv) -entamine caronato chromium ((() D(E
v) 0risethylene diammine ) coalt((() sulphate
vi) iamine ethylene diammine nic8el (() acetate
4) Write the rules hich are applied hile riting the formulas of
coordination compounds
$) ene the terms
i) entral metal atomgtion
ii) igand
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iii) oordination compound
iv) oordination sphere
v) oordination numer
vi) oordination polyhedral
vii) omoleptic and heteroleptic complexes
viii) harge on the complexes
ix) oordination entity
) Write (- name of the folloing complexes
i) Pr2D)4 l2QD3
ii) P-ten)l4Q
iii) F 2Pi)4Q
iv) sP6el4Q
v) rl3-y)3
vi) F 3Po2D4)3Q
vii) Por2en)2Q
viii) P-tl4Q2
ix) Po2D))en)2Q2H
x) F 3Pl2D4)3Q
+) Explain the importance of principles of additive nomenclature
) (dentify the folloing ions y a simple test forming complex
compound
i) u2H ii) i2H iii) 6e3H iv) o2H
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5) Dn the asis of WernerBs theory explainlt hy coalt amine
complexlt ol343 hen treated ith gD3 solution
precipitates only one ion even though there are three ions
17) alculate the eective atomic numer E) of the centralmetal atom in the folloing compounds
i) F 3P6e)Q ii) rD)
11) Write the postulates of WernerBs theory
12) Explain the onding in ol333 and ol3$3
13) Explain stereoisomerism in metal complexes ith coordination
numer 4 and 14) Why the tetrahedral complexes do not exhiit geometrical
isomerism
1$) ra cis and trans geometrical isomers of
i) dichlororomo iodo palladium (() ion
ii) P-t(()3)2l2Q
iii) Po((()3)l3Q
iv) Po((()3)42D)lQ2H
1) ra all possile geometrical isomers of P-t(M)
3)2-y)2l2Q2H ion
1+) Write oxidation statelt coordination numer and electronic
conguration of the metal atom in the folloing complexes
i) rl3-y)3 ii) F 4Pampn)Q
1) lassify the folloing ligands into monodentatelt polydentate
and amidentate
i) 3 ii) iii) iv) v) D2 vi) ethylene diammine
vii) oxalate
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viii) triaminotriethylamine
15) ol3$32D is a pin8 solidlt the solution of this salt is also
pin8 and formed 3mol of gl ith silver nitrate solution Dn
heating pin8 solidlt it loses one ater molecule and forms purplesolid having same ratio of o3l as that of pin8 solid 0he
purple solid hen dissolved in ater and treated ith forms 1 mol
of gl ra the structure and name of the pin8 and purple
solids
27) ame the octahedral complex ions
i) Po2D4) en)2QH ii) transPr)4 3)2Q
21) ra the structures of the folloing complexes
i) Pol4Q2 ii) Pampn3)Q2H iii) P-tlQ iv) iD)4 v) Pi)4Q2
22) (n an octahedral crystal eldlt dra the gure to sho splitting
of dorital
23) What are ea8 eld and strong eld ligands What is spectro
chemical series
24) Pi)4Q2 is diamagnetic hile Pr3)Q3H is paramagnetltexplain
2$) Dn the asis of valence ond theory explain the nature of
onding in the folloing complexes
i) Po6Q3 ii) Po2D4)3Q3
2) lue coloured copper sulphate solution gave folloing
experimental results Explain the same
i) With aCueous potassium chloride it gave right green solution
ii) With aCueous potassium Juoride it gave a green precipitate
2+) ra the structures of optically active isomers of Poen)3Q3H
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2) ra the geometrical and optical isomers of
i) Pol2en)2QH ii) Polen)23)Q2H
25) What is lin8age isomerism Explain ith an example
37) What are hydrate isomers Explain ith examples
31) Explain the structure of
i) upraammonium sulphate ii) Po3)Q3H
32) What are the limitations of valence ond theory
33) Explain the magnetic properties of coordination compounds
34) Write the salient features of crystal eld theory What are itslimitations
3$) Explain the octahedral geometry of complexes using crystal
eld theory
3) Write a note on colours in coordination compounds
3+) Explain the factors aecting the staility of coordination
compound3) Write rief the applications of coordination compounds
HALOGEN DERIVATIVES O ALANES AND ARENES
1) What are al8yl halides o are they classied
2) Write (- names of the folloing compounds
i)
ii) 2Al
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iii)
iv)
v)
vi) secutyl chloride
vii) neopentyl romide
viii) tutyl iodide
ix) isopropyl romide
3) o is ethyl romide prepared from
i) Ethyl alcohol ii) ethane iii) ethane
4)Write the preparation of isopropyl chloride using the folloing
reagents
i) -l3 ii) -l$ iii) l2 iv) l v) Dl2
$) o is group replaced y folloing functional rroups
i) OD ii) O iii) O iv) O2
) Write a note on
i) andmeyerBs reaction ii) Wurt= reaction iii) 6in8elstein reaction
iv) 6ittig reaction v) 6riedel raft reaction
+) (dentify and in the folloing
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) Give the structures of the folloing compounds
i) 3romo2methyl pentane ii) 2romo3ethyl hexane iii) 1
holo utane
iv) pichloroen=ene v) 1lt1lt10richloroethane
5) student has performed an experiment in the laoratory e
mixed ater ith hexane and found to layers separated econd
time he mixed chloroform ith ater and he again found to
layers in the test tue Explain hich ill e upper layer and
hich one ill e loer layer in oth the experiments
17) onvert 1hloroutane into the folloing compounds
i) utane1ol ii) 1(odoutane iii) 3222 iv)
11) 6or each pair of compoundslt state hich compound is etter
2 sustrate
i) 2romoutanelt isopropyl romide ii) 1(odo2lt2dimethyl
propane or isopropyl iodide
12) hoose the memer that ill react faster from the folloing
pairs y 1 mechanism
13) -redict the expected product of sustitution reaction
i) isoutyl chloride mH sodium ethoxide
ii) nutyl chloride H sodium
iii) 1hloro propane H aC potassium hydroxide
iv) aniline H aD2gt l
14) Write the products
i) $22A2 H r L
ii) $A2 H r
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iii)
iv)
v)
1$) (dentify the chiral and achiral molecules
i)
ii)
iii)
1) iscuss 2 mechanism of methyl romide using aCueous
FD ra energy prole diagram1+) Write the mechanism of the reaction hen tutyl chloride is
treated ith aCueous FD ith energy prole diagram
1) ierentiate eteen 1 and 2 mechanism
15) Explain the nature of ond in
i) 322 ii)
27) What are uses of
i) 0 ii) (odoform iii) hloroform iv) aron tetrachloride
21) l8yl halides are polar and miscile ith aterlt explain
22) Which one of the folloing is more easily hydrolysed y
aCueous FD
$l$ and $2l
23) rrange the folloing groups in descending order 2lt D3lt
D3lt DD and l
24) ssign or conguration to each of the folloing
structures
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i)
ii)
iii)
iv)
DDlt -ED E0E
1) What are alcohols o are they classied
2) What are monohydric alcohols o are they classied
4) Write the structures of folloing alcohols
i) 1Ethylcyclohexanol ii) ex3en2ol iii)yclohex2en1ol
iv) -entane1lt4diol
v) 2lt4imethylhexane1lt3lt$triol
$) Explain the folloing
i) -ropan1ol has higher oiling point than nutane
ii) ampethanol is more solule in ater than -ropan1ol
) Write the mechanism of hydration of ethylene to ethyl alcohol
+) -ropan1ol can not e prepared y acid catalyst hydration of
propenelt then ho is propene converted into propan1ol
)5) o is propanone converted into
i) -ropan2ol ii) 2ampethyl propan2ol
17) o ill you otain utan2ol from
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i) -ropanal ii) utan2one iii) ut2ene
11) o is propan1ol prepared from
i) -ropanal ii) -ropanoic acid
12) o is cyclopentanol prepared from
i) yclopentanone ii) yclopentene
14) Write the mechanism of acid catalysed dehydration of ethanol
to give ethane
1$) Write the structure of aldehyde lt caroxylic acid and ester
that yield folloing alcohol
1+) o ill you prepare
i) 2ampethylutane1ol from an al8ene
ii) cyclohexylmethanol from a Grignard reagent
iii) 1phenylethanol from acetaldehyde
1) o are folloing conversions rought aout
i) en=yl chloride to en=yl alcohol
ii) en=yl alcohol to en=oic acid
iii) 1Ethylcyclohexanol from yclohexanone
15) What are phenols o are they classied
27)21) Give the structures and (- names of isomeric phenols
represented y the molecular formula 17D
22) o is phenol prepared from
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i) hloroen=ene ii) (sopropyl en=ene iii) en=ene sulphonic
acid iv) aniline
23 ) Explain the folloing
i) -henol is more acidic than phenol
ii) onitrophenol is more acidic than ocresol
iii) pnitrophenol is less volatile than onitrophenol
24) Explain the folloing reactions of phenol
i) FoleBs reaction ii) iemer0iemann reaction
2$) ame the reagents used to convert phenol intoi) picric acid ii) 2lt4lt0riromophenol iii) en=ene iv) ophenol
sulphonic acid
2) What is the action of folloing reagents on phenol i)
romine in 2 at lo temperature
ii) ilute nitric acid at room temperature iii) oncentrated
sulphuric acid at room temperature
2+) Give distinguish test eteen phenol and ethanol
2) What are ethers o are ethers classied
25) What is metamerism Give the structure and (- name of
metamers of 2ampethoxypropane
37) Write the mechanism for acidic dehydration of ethanol
31) o is diethyl ether prepared y continuous ethericationprocess Why is the process so called
32) o ill you prepared methoxyethane from
i) l8yl halide ii) ia=omethane
33) tate the important uses of i) -henol ii) diethyl ether
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34) Write the mechanism of action of hydrogen romide on tert
utyl methyl ether
3$) Explain the folloing reactions of anisole
i) romination ii) itration iii) 6riedelrafts al8ylation iv)6riedelrafts acylation
3) Explainlt i) 0he OD group attached to aromatic ring in
phenols and ii) 0he al8oxy group in al8yl aryl ethers are ortholt
para directing and activate the aromatic ring toars electrophilic
sustitution
3+) Write the chemical eCuations for Williamson synthesis of 2
Ethoxy2methypentane starting from ethanol and 2ampethylpentan2ol
3) n organic compound ith the formula 417D3 shos
properties of ether and alcohol hen treated ith an excess of
r yields only one compound 1lt2 diromomethane Write
structural formula of ether and that of alcohol
ALDEHYDES ETONES AND CABO$YLIC
ACID
1) Write the structure and give (- names of the folloing
compounds
i) chloropropionaldehyde
ii) Rhydroxyutyraldehyde
iii) isoutyraldehyde
iv) Rmethylvaleraldehyde
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v) isopropyl methyl 8etone
vi) diisopropyl 8etone
vii) mromoen=aldehyde
viii) dien=yl 8etone
ix) divinyl 8etone
x) allyl methyl 8etone
xi) ethyl phenyl 8etone
xii) nutyrophenone
2) Write the structure of folloing compounds
i) 4ampethyl3nitroen=ophenone ii) 2ampethyl4oxopentanal iii)
3Dxopentanoic acid iv) 4chloropropiophenone v) 3
ampethoxyutanal vi) 4ydroxycyclohaxane caraldehyde
3) o ill you prepare i) propiophenone from propanenitrile ii)
4chloroen=aldehyde from 4chlorotoluene iii)
yclohaxanecaraldehyde from cyclohexylmethanol iv) 4
methoxyacetophenone from anisole v) 4methylen=aldehydefrom toluene
4) rrange the folloing compounds in the increasing order of
their oiling points
i) dimethyl etherlt ethyl alcohollt propanelt acetaldehyde
ii) acetonelt npropyl alcohollt ethyl methyl alcohol and nutane
$) What is the action of hydrogen cyanide in asic medium on i)utanone ii) 2lt4dichloroen=aldehyde
) What is the action of folloing compounds on cyclohexanone in
presence of dry hydrogen chloride
i) ethyl alcohol ii) ethylene glycol
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+) Write the structure of product in the folloing reactions
i) 322D3
ii) $2D3
) Write the structures of caronyl compounds and ammonia
derivatives that comine to give folloing imines
i)
ii)
iii)
iv)v)
vi)
5) Write the chemical eCuations for aldol condensation or
anni==aro reaction that folloing compounds undergo
i) -ropanal ii) 2ampethylpropanal iii) -entanal iv) 3
ampethylutanal v) cetophenonevi) pampethoxyen=aldehyde vii) 2ampethylcyclohaxanone viii)
chloral ix) yclopentanone
x) -henyl acetaldehyde xi) 1-henylpropan1one
17) Write the structure of the maKor product of the folloing
crossed aldol condensation
i) formaldehyde and propionaldehydeii) en=aldehyde ith acetone
11) (dentify the compounds SBlt SB and SB in the folloing
reactions and rerite the complete eCuations
i)
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ii)
12)o ill you eect folloing tostep conversions
i) -ropanal into utanone ii) utanone into ut2ene iii)
en=ene into mromoacetophenone iv) ex3yne into exan
3one v) en=oic acid into mnitroen=ylalcohol
13) o ill you convert en=aldehyde into folloing compounds
ampore than one steps may e reCuired
i) en=ophenone ii) en=oic acid iii) 3-henylpropan1ol iv)hydroxyphenylacetic acid
14) Give a chemical test to distinguish eteen folloing pairs of
compounds
i) Ethanal and propanone ii) -rpopanal and propanone iii)
-entane2one and pentane3one
1$) Write the structure and (- names of folloing caroxylicacids
i) ltRdimethylutanoic acid ii) Rphenylutyric acid iii) 1038389
chloromethylvaleric acid
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a) dissolution of sugar in hot coee
) separation of r and Fr from their mixture
c) spreading of fragrance hen a ottle of perfume is opened
d) Jo of heat from cold oKect to hot oKect
e) heat transfer from ice to room at 2$
37) ene entropy Give its units What does entropy measures
31)Explain ho entropy changes in the folloing processes
a) free=ing of liCuid
) sulimation of solid
c) dissolving of ater in sugar
d) condensation of vapour
32) Which memer of the folloing pairs have larger entropy
Why
a) D2s) or D2g)
) 3Dl) or 2$D2$l)
c) Dg) or 2D4g)
d) eg) or Frg)
e) as) or als)
33) Why is it more convenience to predict spontaneity of reaction
in terms of Gsys rather than total34) ene Gis energy and change in Gis energy What are
the units of Gis energy
3$) tate second la of thermodynamics in terms of entropy and
express it mathematically
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3) tate third la of thermodynamics What is its usefulness
3+) Why is it impossile for any sustance to have an asolute
entropy =ero at temperature greater than 7F
3) (t is impossile for a reaction to e spontaneous yetexothermic Explain ith example
35) (s it possile for a reaction to e nonspontaneous yet
exothermic Explain ith example
47) -redict the sign of in the folloing process Give reasons
for your anser
a) 2D4g) 2D2g)) 6e2D3s) H 32g) 26es) H 32Dg)
c) 2g) H 32g) 23g)
d) ampgD3s) 23g)
e) D2g) D2s)
f) l2g) 2lg)
41) What can e said aout the spontaneity of reactions hen
a) and are oth positive
) and oth are negative
c) is positive and is negative
d) is negative and is positive
42) (dentify hich memer of the folloing pairs has largerentropy Why
a) eg) in a volume of 1 or eg) in a volume of $ oth at 2$
) D2g) at 1atm or D2g) at 17atm oth at the same temperature
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c) 2$Dl) or 2$Dg)
d) $ moles of e or 2 moles of e
43) What are the signs of for the folloing reaction
Explain ith reasons
2g) 2g)
44) erive the relationship eteen G and total
4$) Iustify the inclusion of Crev and 0 in the denition of entropylt
A Crevgt 0
4) 0he increase in entropy of a system alone does not guarantee
the spontaneity of a process Explain
4+) 0he criterion of spontaneity in terms of Gis energy is the
same as that laid don y second la of thermodynamic o
PROBLEMS
1) 0hree moles of an ideal gas are expanded isothermally from a
volume of 377cm3 to 2$ at 377F against a pressure of 15atm
alculate the or8 done in atm and Koules2) Dne mole of an ideal gas is compressed from $77cm3 against a
constant pressure of 121 17$-a 0he or8 involved in the
process is 3$7I alculate the nal volume
3) alculate the maximum or8 hen 24g of oxygen are
expanded isothermally and reversily from a pressure of 1
17$-a to 1778-a at 25F
4) 0hree moles of an ideal gas are compressed isothermally andreversily to a volume of 2 0he or8 done is 2538I at 22
alculate the initial volume of a gas
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$) 2 172 8g of nitrogen is expanded isothermally and
reversily at 377F from 1$1$ 17$ m 2 hen the or8 done is
found to e 1+338 I 6ind the nal pressure
) sample of a gas asors 47778I of heata) if volume remains constantlt hat is
) uppose that in addition to asorption of heat y the samplelt
the surrounding does 27778I of or8 on the samplelt hat is
c) uppose that as the original sample asors heatlt it expands
against atmospheric pressure and does 778 I of or8 on its
surroundings What is
+) alculate the or8 done in each of the folloing reactions
tate hether or8 is done on or y the system
a) 0he oxidation of one mole of D2 at $7
2D2g) H D2g) 2D3g)
) decomposition of 2 moles of 4D3 at 177
4D3s) 2Dg) H 22Dg)
) 0he enthalpy change for the reaction
24g) H 2g) 2g) is 27I hen 177m of ethylene and
177m of 2 react at 1atm pressure alculate the pressure
volume or8 and
5) alculate standard enthalpy of the reaction
6e2D3s) H 3Dg) 26es) H 3D2g) from the folloing data
f 76e2D3)A2428Imol1ltf 7D)A117$8Imol1lt
f 7D2)A353$8Imol1
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8112019 Chemistry Question 12sci (1)
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Electro chemitry
Theory
1ene the terms resistivitylt conductivity and molar
conductivity Give its ( units
2Explain the terms conductivity and molar conductivity o are
they interrelated
3Why does conductivity of s solution decrease on dilution of a
solution
4o does molar conductivity of an electrolyte vary ith
concentration
$o does the variation in molar conductivity of an electrolyte
ith concentration diers for strong and ea8 electrolytes
Explain the dierent ehaviour of strong and ea8 electrolytes
toards the variation of conductivity ith concentration
+tate and explain Fohlrausch la of independent migration of
ions o it is useful to determine the molar conductivity of ea8
electrolytes at =ero concentration
o is the molar conductivity of strong electrolytes at =ero
concentration determined y graphical method Why is this
method not useful for ea8 electrolytes
5What is cell constant What is its unit o is it determined
17ene anode and cathode
11 Why is cathode in electrolytic cell considered to e negative
and anode positive
12 -redict the half cell reactions that occur hen fused Fl is
electroly=ed in a cell ith inert electrodes What is the overall cell
reaction
8112019 Chemistry Question 12sci (1)
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13 tate 6aradayBs las of electrolysis
14o ill you calculate the numer of moles of electrons
actually passed and mass of the sustance produced during
electrolysis of a salt solution using reaction stoichiometry1$o many electrons ill have a total charge of 1 coulom
1 o many faradayBs ould e reCuired to plate out 177 mole
of free metal from the folloing cations
a) ampg2H
) r3H
c) -2H
d) uH
1+ ene coulom and faraday
1 escrie the electrolysis of molten al using inert
electrodes
15 What is the dierence eteen electrolytic cell and voltaic
cell
27 Why is anode in galvanic cell considered to e negative and
cathode positive electrode
21 8etch the cell for the electrolysis of molten al (ndicate
cathodelt anode and their signs ho the Jo of electrons and
ions
22 What is salt ridge What are its functions in galvanic cell
23 What are the conventions used to rite cell diagramcell
formula)
24 escrie the construction of aniel cell Write electrode half
reactions and net cell reaction in aniel cell
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2$ escrie the folloing types of electrodes giving one
examplelt ith reference to formulationlt electrode reaction and
ernst eCuation for electrode potential
a) metalsparingly salt electrode) gas electrode
2 What is redox electrode Give one example ith formulationlt
electrode reaction and ernst eCuation for electrode potential
2+ ene the terms oxidation potentiallt reduction potential and
cell potential
2 What conditions are reCuired for a cell potential to e calledstandard cell potential
25 6ormulate a cell for each of the folloing electrode reactions
a) n2H aC) H 2gl s) L n4H aC) H 2gs) H2l aC)
) ampg s) H r2l) L ampg2H aC) H 2r aC)
37 6ormulate a cell from the folloing electrode reactions
a) l2g) H 2e L 2l aC)
) 2( aC) L (2s) H 2e
31 What are standard electrode potential and standard emf of
the galvanic cell
32 Write ernst eCuation and explain the terms involved in it
What part of the eCuation represents the correction factor for
nonstandard state conditions
33 Write ernst eCuation for the folloing reactions
a) rs) H 36e3H aC) L r3H aC) H 36e2H aC)
) l3H aC) H 3e L l s)
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34 onsider the folloing E7 values and half reactions
(2s) H 2e L 2( aC) E7A7$3$M
u2H aC) H 2e L u s) E7A733+M
d2H aC) H 2e L ds) E7A77473
a) Which of the metals or nonmetals or ions is the strongest
oxidi=ing agent and hich is the strongest reducing agent
) 0he half reactions can e used to construct three galvanic
cells Which ill have the highest cell potential
3$ -redict hether
a) gH can oxidi=e - to -2H under standard state condition
) E7gA7+55M and E7
-A712M
3 -redict hether the folloing reactions occur under standard
state conditions
a) Dxidation of gs) y l2g) E7gA7Mlt E7
l2A13M
) eduction of 6e
3H
to 6e
2H
y us) E
7
6e3Hlt 6e2H A 7++MltE7uA14M
3+ 8etch and descrie the operation of
a) dry cell
) 2D2 fuel cell
3 What are the advantages and disadvantages of fuel cells
35 8etch lead storage cell
47 Write electrode reaction and overall cell reaction during the
operation of lead storage cell
41 Write electrode reaction and overall cell reaction hen lead
accumulator ehaves as an electrolytic cell
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42 o can ernst eCuation e used to sho that electrode
potential is eCual to the standard electrode potential y putting
approximate values in ernst eCuation se u2HNd half cell for
illustration
43 o are G7lt E7cell and eCuilirium constant related for a
particular reaction
44 Why is eCuilirium constant related to E7cell and not Ecell
4$ G7 for a redox reaction depends on the numer of electrons
transferred Explain
4 o does the eCuiliriumlt G7An6E7 explain that an
electrical potential is an intensive property
4+ Write shorthand notation for the cell for each of the folloing
reactions
a) u2H aC) H 2gs) H 2r L u s) H 2gr s)
) n2H aC) is oxidi=ed y r2 l)
4 rrange the folloing reducing agents in order of increasing
strength under standard state conditions 0he standard potentialsfor the reduction half reactions are given
gH aC) 7M)lt l3H aC) 1M)lt 62g) 2+M)lt l2g) 13M)lt
(2s) 7$4M)lt d2H aC) 74M)
45 rrange the folloing oxidi=ing agents in order of increasing
strength under standard state conditions 0he standard potentials
for the reduction half reactions are given
ls) 1M)lt l aC) 13M)lt us) 734M)lt 6es)744M)lt r
aC) 175M)lt is) 72M)
$7 Which species in each of the folloing pairs is etter oxidi=ing
agent under standard state conditions standard potential are
given) Give reasons for your anser
8112019 Chemistry Question 12sci (1)
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a) r2l) 175M) or u3H 14M)
) H aC) or gH aC) 7M)
c) -2H aC) 713M) or o2H 72M)
d) l2 g) 13M) or r3H 7+4M)
$1 Which species in each of the folloing pairs is etter reducing
agent under standard conditions E7 values are given Give
reasons for your anser
a) Fs) 2353M) or ampgs) 23M)
) o2H aC) 11M) or (n s) 714M)
c) e3H aC) 11M) or 0i2H73+M)
d) gl) 7M) or is) 723M)
PROBLEMS
1 conductivity cell lled ith 771amp Fl given at 2$o the
resistance of 74ohms 0he conductivity of Fl at 2$
o
is 7777
CHEMISTRY
d f O DF EEampE0
1) What are dloc8 elements
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2) What are floc8 elements
3) Explain the meaning of
i) 0ransition series ii) (nner transition element
4) Explain the position of the folloing in periodic tale
i) dloc8 elements ii) anthanoids iii) ctinoids
$) Explain the oxidation state of 1st ro elements of transition
series
) Explain the oxidation states of lanthanoids and actinoids
+) Why do lanthanoids form coloured compounds ) Explainlt most of the transition metal compounds are
remar8aly coloured
5) Why chromium has electronic conguration 3d$ 4s1 and not 3d4
4s2
17) Why does copper sho anormal electronic conguration
11) Explainlt the trends in atomic and ionic si=es of lanthanoidsand also of 1st ro elements of transition series
12) What are actinoids
13) What are transuranic elements Write their name
14) Why transition elements sho tendency to form large numer
of complexes
1$) Explain the compounds of copper ((() are coloured ut thoseof =inc are colourless
1) o is potassium dichromate prepared from chrome ion
1+) Write the preparationlt properties and use of potassium
permanganate
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1) Explainlt hy -t(M) complexes are generally octahedral hile
-t(() complexes are sCuare planar
15) ierentiate eteen lanthanoids and actinoids
27) What are chemical tins Give examples
21) Explain hy Gd3H is colourless
COORDINATION COMPOUNDS
1) What is the dierence eteen doule salt and coordinationcompounds
2) Explainlt hy 6e4)2 D4)22D) is a salt ut F 4P6e)Q is a
complex compound
3) Write the formula of the folloing complexes
i) alcium hexa cyano ferrate (()
ii) iammine dichloro platinum
iii) is ethylene diammine) dichloro iridium ((() ion
iv) -entamine caronato chromium ((() D(E
v) 0risethylene diammine ) coalt((() sulphate
vi) iamine ethylene diammine nic8el (() acetate
4) Write the rules hich are applied hile riting the formulas of
coordination compounds
$) ene the terms
i) entral metal atomgtion
ii) igand
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iii) oordination compound
iv) oordination sphere
v) oordination numer
vi) oordination polyhedral
vii) omoleptic and heteroleptic complexes
viii) harge on the complexes
ix) oordination entity
) Write (- name of the folloing complexes
i) Pr2D)4 l2QD3
ii) P-ten)l4Q
iii) F 2Pi)4Q
iv) sP6el4Q
v) rl3-y)3
vi) F 3Po2D4)3Q
vii) Por2en)2Q
viii) P-tl4Q2
ix) Po2D))en)2Q2H
x) F 3Pl2D4)3Q
+) Explain the importance of principles of additive nomenclature
) (dentify the folloing ions y a simple test forming complex
compound
i) u2H ii) i2H iii) 6e3H iv) o2H
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5) Dn the asis of WernerBs theory explainlt hy coalt amine
complexlt ol343 hen treated ith gD3 solution
precipitates only one ion even though there are three ions
17) alculate the eective atomic numer E) of the centralmetal atom in the folloing compounds
i) F 3P6e)Q ii) rD)
11) Write the postulates of WernerBs theory
12) Explain the onding in ol333 and ol3$3
13) Explain stereoisomerism in metal complexes ith coordination
numer 4 and 14) Why the tetrahedral complexes do not exhiit geometrical
isomerism
1$) ra cis and trans geometrical isomers of
i) dichlororomo iodo palladium (() ion
ii) P-t(()3)2l2Q
iii) Po((()3)l3Q
iv) Po((()3)42D)lQ2H
1) ra all possile geometrical isomers of P-t(M)
3)2-y)2l2Q2H ion
1+) Write oxidation statelt coordination numer and electronic
conguration of the metal atom in the folloing complexes
i) rl3-y)3 ii) F 4Pampn)Q
1) lassify the folloing ligands into monodentatelt polydentate
and amidentate
i) 3 ii) iii) iv) v) D2 vi) ethylene diammine
vii) oxalate
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viii) triaminotriethylamine
15) ol3$32D is a pin8 solidlt the solution of this salt is also
pin8 and formed 3mol of gl ith silver nitrate solution Dn
heating pin8 solidlt it loses one ater molecule and forms purplesolid having same ratio of o3l as that of pin8 solid 0he
purple solid hen dissolved in ater and treated ith forms 1 mol
of gl ra the structure and name of the pin8 and purple
solids
27) ame the octahedral complex ions
i) Po2D4) en)2QH ii) transPr)4 3)2Q
21) ra the structures of the folloing complexes
i) Pol4Q2 ii) Pampn3)Q2H iii) P-tlQ iv) iD)4 v) Pi)4Q2
22) (n an octahedral crystal eldlt dra the gure to sho splitting
of dorital
23) What are ea8 eld and strong eld ligands What is spectro
chemical series
24) Pi)4Q2 is diamagnetic hile Pr3)Q3H is paramagnetltexplain
2$) Dn the asis of valence ond theory explain the nature of
onding in the folloing complexes
i) Po6Q3 ii) Po2D4)3Q3
2) lue coloured copper sulphate solution gave folloing
experimental results Explain the same
i) With aCueous potassium chloride it gave right green solution
ii) With aCueous potassium Juoride it gave a green precipitate
2+) ra the structures of optically active isomers of Poen)3Q3H
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2) ra the geometrical and optical isomers of
i) Pol2en)2QH ii) Polen)23)Q2H
25) What is lin8age isomerism Explain ith an example
37) What are hydrate isomers Explain ith examples
31) Explain the structure of
i) upraammonium sulphate ii) Po3)Q3H
32) What are the limitations of valence ond theory
33) Explain the magnetic properties of coordination compounds
34) Write the salient features of crystal eld theory What are itslimitations
3$) Explain the octahedral geometry of complexes using crystal
eld theory
3) Write a note on colours in coordination compounds
3+) Explain the factors aecting the staility of coordination
compound3) Write rief the applications of coordination compounds
HALOGEN DERIVATIVES O ALANES AND ARENES
1) What are al8yl halides o are they classied
2) Write (- names of the folloing compounds
i)
ii) 2Al
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iii)
iv)
v)
vi) secutyl chloride
vii) neopentyl romide
viii) tutyl iodide
ix) isopropyl romide
3) o is ethyl romide prepared from
i) Ethyl alcohol ii) ethane iii) ethane
4)Write the preparation of isopropyl chloride using the folloing
reagents
i) -l3 ii) -l$ iii) l2 iv) l v) Dl2
$) o is group replaced y folloing functional rroups
i) OD ii) O iii) O iv) O2
) Write a note on
i) andmeyerBs reaction ii) Wurt= reaction iii) 6in8elstein reaction
iv) 6ittig reaction v) 6riedel raft reaction
+) (dentify and in the folloing
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) Give the structures of the folloing compounds
i) 3romo2methyl pentane ii) 2romo3ethyl hexane iii) 1
holo utane
iv) pichloroen=ene v) 1lt1lt10richloroethane
5) student has performed an experiment in the laoratory e
mixed ater ith hexane and found to layers separated econd
time he mixed chloroform ith ater and he again found to
layers in the test tue Explain hich ill e upper layer and
hich one ill e loer layer in oth the experiments
17) onvert 1hloroutane into the folloing compounds
i) utane1ol ii) 1(odoutane iii) 3222 iv)
11) 6or each pair of compoundslt state hich compound is etter
2 sustrate
i) 2romoutanelt isopropyl romide ii) 1(odo2lt2dimethyl
propane or isopropyl iodide
12) hoose the memer that ill react faster from the folloing
pairs y 1 mechanism
13) -redict the expected product of sustitution reaction
i) isoutyl chloride mH sodium ethoxide
ii) nutyl chloride H sodium
iii) 1hloro propane H aC potassium hydroxide
iv) aniline H aD2gt l
14) Write the products
i) $22A2 H r L
ii) $A2 H r
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iii)
iv)
v)
1$) (dentify the chiral and achiral molecules
i)
ii)
iii)
1) iscuss 2 mechanism of methyl romide using aCueous
FD ra energy prole diagram1+) Write the mechanism of the reaction hen tutyl chloride is
treated ith aCueous FD ith energy prole diagram
1) ierentiate eteen 1 and 2 mechanism
15) Explain the nature of ond in
i) 322 ii)
27) What are uses of
i) 0 ii) (odoform iii) hloroform iv) aron tetrachloride
21) l8yl halides are polar and miscile ith aterlt explain
22) Which one of the folloing is more easily hydrolysed y
aCueous FD
$l$ and $2l
23) rrange the folloing groups in descending order 2lt D3lt
D3lt DD and l
24) ssign or conguration to each of the folloing
structures
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i)
ii)
iii)
iv)
DDlt -ED E0E
1) What are alcohols o are they classied
2) What are monohydric alcohols o are they classied
4) Write the structures of folloing alcohols
i) 1Ethylcyclohexanol ii) ex3en2ol iii)yclohex2en1ol
iv) -entane1lt4diol
v) 2lt4imethylhexane1lt3lt$triol
$) Explain the folloing
i) -ropan1ol has higher oiling point than nutane
ii) ampethanol is more solule in ater than -ropan1ol
) Write the mechanism of hydration of ethylene to ethyl alcohol
+) -ropan1ol can not e prepared y acid catalyst hydration of
propenelt then ho is propene converted into propan1ol
)5) o is propanone converted into
i) -ropan2ol ii) 2ampethyl propan2ol
17) o ill you otain utan2ol from
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i) -ropanal ii) utan2one iii) ut2ene
11) o is propan1ol prepared from
i) -ropanal ii) -ropanoic acid
12) o is cyclopentanol prepared from
i) yclopentanone ii) yclopentene
14) Write the mechanism of acid catalysed dehydration of ethanol
to give ethane
1$) Write the structure of aldehyde lt caroxylic acid and ester
that yield folloing alcohol
1+) o ill you prepare
i) 2ampethylutane1ol from an al8ene
ii) cyclohexylmethanol from a Grignard reagent
iii) 1phenylethanol from acetaldehyde
1) o are folloing conversions rought aout
i) en=yl chloride to en=yl alcohol
ii) en=yl alcohol to en=oic acid
iii) 1Ethylcyclohexanol from yclohexanone
15) What are phenols o are they classied
27)21) Give the structures and (- names of isomeric phenols
represented y the molecular formula 17D
22) o is phenol prepared from
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i) hloroen=ene ii) (sopropyl en=ene iii) en=ene sulphonic
acid iv) aniline
23 ) Explain the folloing
i) -henol is more acidic than phenol
ii) onitrophenol is more acidic than ocresol
iii) pnitrophenol is less volatile than onitrophenol
24) Explain the folloing reactions of phenol
i) FoleBs reaction ii) iemer0iemann reaction
2$) ame the reagents used to convert phenol intoi) picric acid ii) 2lt4lt0riromophenol iii) en=ene iv) ophenol
sulphonic acid
2) What is the action of folloing reagents on phenol i)
romine in 2 at lo temperature
ii) ilute nitric acid at room temperature iii) oncentrated
sulphuric acid at room temperature
2+) Give distinguish test eteen phenol and ethanol
2) What are ethers o are ethers classied
25) What is metamerism Give the structure and (- name of
metamers of 2ampethoxypropane
37) Write the mechanism for acidic dehydration of ethanol
31) o is diethyl ether prepared y continuous ethericationprocess Why is the process so called
32) o ill you prepared methoxyethane from
i) l8yl halide ii) ia=omethane
33) tate the important uses of i) -henol ii) diethyl ether
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34) Write the mechanism of action of hydrogen romide on tert
utyl methyl ether
3$) Explain the folloing reactions of anisole
i) romination ii) itration iii) 6riedelrafts al8ylation iv)6riedelrafts acylation
3) Explainlt i) 0he OD group attached to aromatic ring in
phenols and ii) 0he al8oxy group in al8yl aryl ethers are ortholt
para directing and activate the aromatic ring toars electrophilic
sustitution
3+) Write the chemical eCuations for Williamson synthesis of 2
Ethoxy2methypentane starting from ethanol and 2ampethylpentan2ol
3) n organic compound ith the formula 417D3 shos
properties of ether and alcohol hen treated ith an excess of
r yields only one compound 1lt2 diromomethane Write
structural formula of ether and that of alcohol
ALDEHYDES ETONES AND CABO$YLIC
ACID
1) Write the structure and give (- names of the folloing
compounds
i) chloropropionaldehyde
ii) Rhydroxyutyraldehyde
iii) isoutyraldehyde
iv) Rmethylvaleraldehyde
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v) isopropyl methyl 8etone
vi) diisopropyl 8etone
vii) mromoen=aldehyde
viii) dien=yl 8etone
ix) divinyl 8etone
x) allyl methyl 8etone
xi) ethyl phenyl 8etone
xii) nutyrophenone
2) Write the structure of folloing compounds
i) 4ampethyl3nitroen=ophenone ii) 2ampethyl4oxopentanal iii)
3Dxopentanoic acid iv) 4chloropropiophenone v) 3
ampethoxyutanal vi) 4ydroxycyclohaxane caraldehyde
3) o ill you prepare i) propiophenone from propanenitrile ii)
4chloroen=aldehyde from 4chlorotoluene iii)
yclohaxanecaraldehyde from cyclohexylmethanol iv) 4
methoxyacetophenone from anisole v) 4methylen=aldehydefrom toluene
4) rrange the folloing compounds in the increasing order of
their oiling points
i) dimethyl etherlt ethyl alcohollt propanelt acetaldehyde
ii) acetonelt npropyl alcohollt ethyl methyl alcohol and nutane
$) What is the action of hydrogen cyanide in asic medium on i)utanone ii) 2lt4dichloroen=aldehyde
) What is the action of folloing compounds on cyclohexanone in
presence of dry hydrogen chloride
i) ethyl alcohol ii) ethylene glycol
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+) Write the structure of product in the folloing reactions
i) 322D3
ii) $2D3
) Write the structures of caronyl compounds and ammonia
derivatives that comine to give folloing imines
i)
ii)
iii)
iv)v)
vi)
5) Write the chemical eCuations for aldol condensation or
anni==aro reaction that folloing compounds undergo
i) -ropanal ii) 2ampethylpropanal iii) -entanal iv) 3
ampethylutanal v) cetophenonevi) pampethoxyen=aldehyde vii) 2ampethylcyclohaxanone viii)
chloral ix) yclopentanone
x) -henyl acetaldehyde xi) 1-henylpropan1one
17) Write the structure of the maKor product of the folloing
crossed aldol condensation
i) formaldehyde and propionaldehydeii) en=aldehyde ith acetone
11) (dentify the compounds SBlt SB and SB in the folloing
reactions and rerite the complete eCuations
i)
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ii)
12)o ill you eect folloing tostep conversions
i) -ropanal into utanone ii) utanone into ut2ene iii)
en=ene into mromoacetophenone iv) ex3yne into exan
3one v) en=oic acid into mnitroen=ylalcohol
13) o ill you convert en=aldehyde into folloing compounds
ampore than one steps may e reCuired
i) en=ophenone ii) en=oic acid iii) 3-henylpropan1ol iv)hydroxyphenylacetic acid
14) Give a chemical test to distinguish eteen folloing pairs of
compounds
i) Ethanal and propanone ii) -rpopanal and propanone iii)
-entane2one and pentane3one
1$) Write the structure and (- names of folloing caroxylicacids
i) ltRdimethylutanoic acid ii) Rphenylutyric acid iii) 1038389
chloromethylvaleric acid
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a) dissolution of sugar in hot coee
) separation of r and Fr from their mixture
c) spreading of fragrance hen a ottle of perfume is opened
d) Jo of heat from cold oKect to hot oKect
e) heat transfer from ice to room at 2$
37) ene entropy Give its units What does entropy measures
31)Explain ho entropy changes in the folloing processes
a) free=ing of liCuid
) sulimation of solid
c) dissolving of ater in sugar
d) condensation of vapour
32) Which memer of the folloing pairs have larger entropy
Why
a) D2s) or D2g)
) 3Dl) or 2$D2$l)
c) Dg) or 2D4g)
d) eg) or Frg)
e) as) or als)
33) Why is it more convenience to predict spontaneity of reaction
in terms of Gsys rather than total34) ene Gis energy and change in Gis energy What are
the units of Gis energy
3$) tate second la of thermodynamics in terms of entropy and
express it mathematically
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3) tate third la of thermodynamics What is its usefulness
3+) Why is it impossile for any sustance to have an asolute
entropy =ero at temperature greater than 7F
3) (t is impossile for a reaction to e spontaneous yetexothermic Explain ith example
35) (s it possile for a reaction to e nonspontaneous yet
exothermic Explain ith example
47) -redict the sign of in the folloing process Give reasons
for your anser
a) 2D4g) 2D2g)) 6e2D3s) H 32g) 26es) H 32Dg)
c) 2g) H 32g) 23g)
d) ampgD3s) 23g)
e) D2g) D2s)
f) l2g) 2lg)
41) What can e said aout the spontaneity of reactions hen
a) and are oth positive
) and oth are negative
c) is positive and is negative
d) is negative and is positive
42) (dentify hich memer of the folloing pairs has largerentropy Why
a) eg) in a volume of 1 or eg) in a volume of $ oth at 2$
) D2g) at 1atm or D2g) at 17atm oth at the same temperature
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c) 2$Dl) or 2$Dg)
d) $ moles of e or 2 moles of e
43) What are the signs of for the folloing reaction
Explain ith reasons
2g) 2g)
44) erive the relationship eteen G and total
4$) Iustify the inclusion of Crev and 0 in the denition of entropylt
A Crevgt 0
4) 0he increase in entropy of a system alone does not guarantee
the spontaneity of a process Explain
4+) 0he criterion of spontaneity in terms of Gis energy is the
same as that laid don y second la of thermodynamic o
PROBLEMS
1) 0hree moles of an ideal gas are expanded isothermally from a
volume of 377cm3 to 2$ at 377F against a pressure of 15atm
alculate the or8 done in atm and Koules2) Dne mole of an ideal gas is compressed from $77cm3 against a
constant pressure of 121 17$-a 0he or8 involved in the
process is 3$7I alculate the nal volume
3) alculate the maximum or8 hen 24g of oxygen are
expanded isothermally and reversily from a pressure of 1
17$-a to 1778-a at 25F
4) 0hree moles of an ideal gas are compressed isothermally andreversily to a volume of 2 0he or8 done is 2538I at 22
alculate the initial volume of a gas
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$) 2 172 8g of nitrogen is expanded isothermally and
reversily at 377F from 1$1$ 17$ m 2 hen the or8 done is
found to e 1+338 I 6ind the nal pressure
) sample of a gas asors 47778I of heata) if volume remains constantlt hat is
) uppose that in addition to asorption of heat y the samplelt
the surrounding does 27778I of or8 on the samplelt hat is
c) uppose that as the original sample asors heatlt it expands
against atmospheric pressure and does 778 I of or8 on its
surroundings What is
+) alculate the or8 done in each of the folloing reactions
tate hether or8 is done on or y the system
a) 0he oxidation of one mole of D2 at $7
2D2g) H D2g) 2D3g)
) decomposition of 2 moles of 4D3 at 177
4D3s) 2Dg) H 22Dg)
) 0he enthalpy change for the reaction
24g) H 2g) 2g) is 27I hen 177m of ethylene and
177m of 2 react at 1atm pressure alculate the pressure
volume or8 and
5) alculate standard enthalpy of the reaction
6e2D3s) H 3Dg) 26es) H 3D2g) from the folloing data
f 76e2D3)A2428Imol1ltf 7D)A117$8Imol1lt
f 7D2)A353$8Imol1
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8112019 Chemistry Question 12sci (1)
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Electro chemitry
Theory
1ene the terms resistivitylt conductivity and molar
conductivity Give its ( units
2Explain the terms conductivity and molar conductivity o are
they interrelated
3Why does conductivity of s solution decrease on dilution of a
solution
4o does molar conductivity of an electrolyte vary ith
concentration
$o does the variation in molar conductivity of an electrolyte
ith concentration diers for strong and ea8 electrolytes
Explain the dierent ehaviour of strong and ea8 electrolytes
toards the variation of conductivity ith concentration
+tate and explain Fohlrausch la of independent migration of
ions o it is useful to determine the molar conductivity of ea8
electrolytes at =ero concentration
o is the molar conductivity of strong electrolytes at =ero
concentration determined y graphical method Why is this
method not useful for ea8 electrolytes
5What is cell constant What is its unit o is it determined
17ene anode and cathode
11 Why is cathode in electrolytic cell considered to e negative
and anode positive
12 -redict the half cell reactions that occur hen fused Fl is
electroly=ed in a cell ith inert electrodes What is the overall cell
reaction
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13 tate 6aradayBs las of electrolysis
14o ill you calculate the numer of moles of electrons
actually passed and mass of the sustance produced during
electrolysis of a salt solution using reaction stoichiometry1$o many electrons ill have a total charge of 1 coulom
1 o many faradayBs ould e reCuired to plate out 177 mole
of free metal from the folloing cations
a) ampg2H
) r3H
c) -2H
d) uH
1+ ene coulom and faraday
1 escrie the electrolysis of molten al using inert
electrodes
15 What is the dierence eteen electrolytic cell and voltaic
cell
27 Why is anode in galvanic cell considered to e negative and
cathode positive electrode
21 8etch the cell for the electrolysis of molten al (ndicate
cathodelt anode and their signs ho the Jo of electrons and
ions
22 What is salt ridge What are its functions in galvanic cell
23 What are the conventions used to rite cell diagramcell
formula)
24 escrie the construction of aniel cell Write electrode half
reactions and net cell reaction in aniel cell
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2$ escrie the folloing types of electrodes giving one
examplelt ith reference to formulationlt electrode reaction and
ernst eCuation for electrode potential
a) metalsparingly salt electrode) gas electrode
2 What is redox electrode Give one example ith formulationlt
electrode reaction and ernst eCuation for electrode potential
2+ ene the terms oxidation potentiallt reduction potential and
cell potential
2 What conditions are reCuired for a cell potential to e calledstandard cell potential
25 6ormulate a cell for each of the folloing electrode reactions
a) n2H aC) H 2gl s) L n4H aC) H 2gs) H2l aC)
) ampg s) H r2l) L ampg2H aC) H 2r aC)
37 6ormulate a cell from the folloing electrode reactions
a) l2g) H 2e L 2l aC)
) 2( aC) L (2s) H 2e
31 What are standard electrode potential and standard emf of
the galvanic cell
32 Write ernst eCuation and explain the terms involved in it
What part of the eCuation represents the correction factor for
nonstandard state conditions
33 Write ernst eCuation for the folloing reactions
a) rs) H 36e3H aC) L r3H aC) H 36e2H aC)
) l3H aC) H 3e L l s)
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34 onsider the folloing E7 values and half reactions
(2s) H 2e L 2( aC) E7A7$3$M
u2H aC) H 2e L u s) E7A733+M
d2H aC) H 2e L ds) E7A77473
a) Which of the metals or nonmetals or ions is the strongest
oxidi=ing agent and hich is the strongest reducing agent
) 0he half reactions can e used to construct three galvanic
cells Which ill have the highest cell potential
3$ -redict hether
a) gH can oxidi=e - to -2H under standard state condition
) E7gA7+55M and E7
-A712M
3 -redict hether the folloing reactions occur under standard
state conditions
a) Dxidation of gs) y l2g) E7gA7Mlt E7
l2A13M
) eduction of 6e
3H
to 6e
2H
y us) E
7
6e3Hlt 6e2H A 7++MltE7uA14M
3+ 8etch and descrie the operation of
a) dry cell
) 2D2 fuel cell
3 What are the advantages and disadvantages of fuel cells
35 8etch lead storage cell
47 Write electrode reaction and overall cell reaction during the
operation of lead storage cell
41 Write electrode reaction and overall cell reaction hen lead
accumulator ehaves as an electrolytic cell
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42 o can ernst eCuation e used to sho that electrode
potential is eCual to the standard electrode potential y putting
approximate values in ernst eCuation se u2HNd half cell for
illustration
43 o are G7lt E7cell and eCuilirium constant related for a
particular reaction
44 Why is eCuilirium constant related to E7cell and not Ecell
4$ G7 for a redox reaction depends on the numer of electrons
transferred Explain
4 o does the eCuiliriumlt G7An6E7 explain that an
electrical potential is an intensive property
4+ Write shorthand notation for the cell for each of the folloing
reactions
a) u2H aC) H 2gs) H 2r L u s) H 2gr s)
) n2H aC) is oxidi=ed y r2 l)
4 rrange the folloing reducing agents in order of increasing
strength under standard state conditions 0he standard potentialsfor the reduction half reactions are given
gH aC) 7M)lt l3H aC) 1M)lt 62g) 2+M)lt l2g) 13M)lt
(2s) 7$4M)lt d2H aC) 74M)
45 rrange the folloing oxidi=ing agents in order of increasing
strength under standard state conditions 0he standard potentials
for the reduction half reactions are given
ls) 1M)lt l aC) 13M)lt us) 734M)lt 6es)744M)lt r
aC) 175M)lt is) 72M)
$7 Which species in each of the folloing pairs is etter oxidi=ing
agent under standard state conditions standard potential are
given) Give reasons for your anser
8112019 Chemistry Question 12sci (1)
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a) r2l) 175M) or u3H 14M)
) H aC) or gH aC) 7M)
c) -2H aC) 713M) or o2H 72M)
d) l2 g) 13M) or r3H 7+4M)
$1 Which species in each of the folloing pairs is etter reducing
agent under standard conditions E7 values are given Give
reasons for your anser
a) Fs) 2353M) or ampgs) 23M)
) o2H aC) 11M) or (n s) 714M)
c) e3H aC) 11M) or 0i2H73+M)
d) gl) 7M) or is) 723M)
PROBLEMS
1 conductivity cell lled ith 771amp Fl given at 2$o the
resistance of 74ohms 0he conductivity of Fl at 2$
o
is 7777
CHEMISTRY
d f O DF EEampE0
1) What are dloc8 elements
8112019 Chemistry Question 12sci (1)
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2) What are floc8 elements
3) Explain the meaning of
i) 0ransition series ii) (nner transition element
4) Explain the position of the folloing in periodic tale
i) dloc8 elements ii) anthanoids iii) ctinoids
$) Explain the oxidation state of 1st ro elements of transition
series
) Explain the oxidation states of lanthanoids and actinoids
+) Why do lanthanoids form coloured compounds ) Explainlt most of the transition metal compounds are
remar8aly coloured
5) Why chromium has electronic conguration 3d$ 4s1 and not 3d4
4s2
17) Why does copper sho anormal electronic conguration
11) Explainlt the trends in atomic and ionic si=es of lanthanoidsand also of 1st ro elements of transition series
12) What are actinoids
13) What are transuranic elements Write their name
14) Why transition elements sho tendency to form large numer
of complexes
1$) Explain the compounds of copper ((() are coloured ut thoseof =inc are colourless
1) o is potassium dichromate prepared from chrome ion
1+) Write the preparationlt properties and use of potassium
permanganate
8112019 Chemistry Question 12sci (1)
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1) Explainlt hy -t(M) complexes are generally octahedral hile
-t(() complexes are sCuare planar
15) ierentiate eteen lanthanoids and actinoids
27) What are chemical tins Give examples
21) Explain hy Gd3H is colourless
COORDINATION COMPOUNDS
1) What is the dierence eteen doule salt and coordinationcompounds
2) Explainlt hy 6e4)2 D4)22D) is a salt ut F 4P6e)Q is a
complex compound
3) Write the formula of the folloing complexes
i) alcium hexa cyano ferrate (()
ii) iammine dichloro platinum
iii) is ethylene diammine) dichloro iridium ((() ion
iv) -entamine caronato chromium ((() D(E
v) 0risethylene diammine ) coalt((() sulphate
vi) iamine ethylene diammine nic8el (() acetate
4) Write the rules hich are applied hile riting the formulas of
coordination compounds
$) ene the terms
i) entral metal atomgtion
ii) igand
8112019 Chemistry Question 12sci (1)
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iii) oordination compound
iv) oordination sphere
v) oordination numer
vi) oordination polyhedral
vii) omoleptic and heteroleptic complexes
viii) harge on the complexes
ix) oordination entity
) Write (- name of the folloing complexes
i) Pr2D)4 l2QD3
ii) P-ten)l4Q
iii) F 2Pi)4Q
iv) sP6el4Q
v) rl3-y)3
vi) F 3Po2D4)3Q
vii) Por2en)2Q
viii) P-tl4Q2
ix) Po2D))en)2Q2H
x) F 3Pl2D4)3Q
+) Explain the importance of principles of additive nomenclature
) (dentify the folloing ions y a simple test forming complex
compound
i) u2H ii) i2H iii) 6e3H iv) o2H
8112019 Chemistry Question 12sci (1)
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5) Dn the asis of WernerBs theory explainlt hy coalt amine
complexlt ol343 hen treated ith gD3 solution
precipitates only one ion even though there are three ions
17) alculate the eective atomic numer E) of the centralmetal atom in the folloing compounds
i) F 3P6e)Q ii) rD)
11) Write the postulates of WernerBs theory
12) Explain the onding in ol333 and ol3$3
13) Explain stereoisomerism in metal complexes ith coordination
numer 4 and 14) Why the tetrahedral complexes do not exhiit geometrical
isomerism
1$) ra cis and trans geometrical isomers of
i) dichlororomo iodo palladium (() ion
ii) P-t(()3)2l2Q
iii) Po((()3)l3Q
iv) Po((()3)42D)lQ2H
1) ra all possile geometrical isomers of P-t(M)
3)2-y)2l2Q2H ion
1+) Write oxidation statelt coordination numer and electronic
conguration of the metal atom in the folloing complexes
i) rl3-y)3 ii) F 4Pampn)Q
1) lassify the folloing ligands into monodentatelt polydentate
and amidentate
i) 3 ii) iii) iv) v) D2 vi) ethylene diammine
vii) oxalate
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viii) triaminotriethylamine
15) ol3$32D is a pin8 solidlt the solution of this salt is also
pin8 and formed 3mol of gl ith silver nitrate solution Dn
heating pin8 solidlt it loses one ater molecule and forms purplesolid having same ratio of o3l as that of pin8 solid 0he
purple solid hen dissolved in ater and treated ith forms 1 mol
of gl ra the structure and name of the pin8 and purple
solids
27) ame the octahedral complex ions
i) Po2D4) en)2QH ii) transPr)4 3)2Q
21) ra the structures of the folloing complexes
i) Pol4Q2 ii) Pampn3)Q2H iii) P-tlQ iv) iD)4 v) Pi)4Q2
22) (n an octahedral crystal eldlt dra the gure to sho splitting
of dorital
23) What are ea8 eld and strong eld ligands What is spectro
chemical series
24) Pi)4Q2 is diamagnetic hile Pr3)Q3H is paramagnetltexplain
2$) Dn the asis of valence ond theory explain the nature of
onding in the folloing complexes
i) Po6Q3 ii) Po2D4)3Q3
2) lue coloured copper sulphate solution gave folloing
experimental results Explain the same
i) With aCueous potassium chloride it gave right green solution
ii) With aCueous potassium Juoride it gave a green precipitate
2+) ra the structures of optically active isomers of Poen)3Q3H
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2) ra the geometrical and optical isomers of
i) Pol2en)2QH ii) Polen)23)Q2H
25) What is lin8age isomerism Explain ith an example
37) What are hydrate isomers Explain ith examples
31) Explain the structure of
i) upraammonium sulphate ii) Po3)Q3H
32) What are the limitations of valence ond theory
33) Explain the magnetic properties of coordination compounds
34) Write the salient features of crystal eld theory What are itslimitations
3$) Explain the octahedral geometry of complexes using crystal
eld theory
3) Write a note on colours in coordination compounds
3+) Explain the factors aecting the staility of coordination
compound3) Write rief the applications of coordination compounds
HALOGEN DERIVATIVES O ALANES AND ARENES
1) What are al8yl halides o are they classied
2) Write (- names of the folloing compounds
i)
ii) 2Al
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iii)
iv)
v)
vi) secutyl chloride
vii) neopentyl romide
viii) tutyl iodide
ix) isopropyl romide
3) o is ethyl romide prepared from
i) Ethyl alcohol ii) ethane iii) ethane
4)Write the preparation of isopropyl chloride using the folloing
reagents
i) -l3 ii) -l$ iii) l2 iv) l v) Dl2
$) o is group replaced y folloing functional rroups
i) OD ii) O iii) O iv) O2
) Write a note on
i) andmeyerBs reaction ii) Wurt= reaction iii) 6in8elstein reaction
iv) 6ittig reaction v) 6riedel raft reaction
+) (dentify and in the folloing
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) Give the structures of the folloing compounds
i) 3romo2methyl pentane ii) 2romo3ethyl hexane iii) 1
holo utane
iv) pichloroen=ene v) 1lt1lt10richloroethane
5) student has performed an experiment in the laoratory e
mixed ater ith hexane and found to layers separated econd
time he mixed chloroform ith ater and he again found to
layers in the test tue Explain hich ill e upper layer and
hich one ill e loer layer in oth the experiments
17) onvert 1hloroutane into the folloing compounds
i) utane1ol ii) 1(odoutane iii) 3222 iv)
11) 6or each pair of compoundslt state hich compound is etter
2 sustrate
i) 2romoutanelt isopropyl romide ii) 1(odo2lt2dimethyl
propane or isopropyl iodide
12) hoose the memer that ill react faster from the folloing
pairs y 1 mechanism
13) -redict the expected product of sustitution reaction
i) isoutyl chloride mH sodium ethoxide
ii) nutyl chloride H sodium
iii) 1hloro propane H aC potassium hydroxide
iv) aniline H aD2gt l
14) Write the products
i) $22A2 H r L
ii) $A2 H r
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iii)
iv)
v)
1$) (dentify the chiral and achiral molecules
i)
ii)
iii)
1) iscuss 2 mechanism of methyl romide using aCueous
FD ra energy prole diagram1+) Write the mechanism of the reaction hen tutyl chloride is
treated ith aCueous FD ith energy prole diagram
1) ierentiate eteen 1 and 2 mechanism
15) Explain the nature of ond in
i) 322 ii)
27) What are uses of
i) 0 ii) (odoform iii) hloroform iv) aron tetrachloride
21) l8yl halides are polar and miscile ith aterlt explain
22) Which one of the folloing is more easily hydrolysed y
aCueous FD
$l$ and $2l
23) rrange the folloing groups in descending order 2lt D3lt
D3lt DD and l
24) ssign or conguration to each of the folloing
structures
8112019 Chemistry Question 12sci (1)
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i)
ii)
iii)
iv)
DDlt -ED E0E
1) What are alcohols o are they classied
2) What are monohydric alcohols o are they classied
4) Write the structures of folloing alcohols
i) 1Ethylcyclohexanol ii) ex3en2ol iii)yclohex2en1ol
iv) -entane1lt4diol
v) 2lt4imethylhexane1lt3lt$triol
$) Explain the folloing
i) -ropan1ol has higher oiling point than nutane
ii) ampethanol is more solule in ater than -ropan1ol
) Write the mechanism of hydration of ethylene to ethyl alcohol
+) -ropan1ol can not e prepared y acid catalyst hydration of
propenelt then ho is propene converted into propan1ol
)5) o is propanone converted into
i) -ropan2ol ii) 2ampethyl propan2ol
17) o ill you otain utan2ol from
8112019 Chemistry Question 12sci (1)
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i) -ropanal ii) utan2one iii) ut2ene
11) o is propan1ol prepared from
i) -ropanal ii) -ropanoic acid
12) o is cyclopentanol prepared from
i) yclopentanone ii) yclopentene
14) Write the mechanism of acid catalysed dehydration of ethanol
to give ethane
1$) Write the structure of aldehyde lt caroxylic acid and ester
that yield folloing alcohol
1+) o ill you prepare
i) 2ampethylutane1ol from an al8ene
ii) cyclohexylmethanol from a Grignard reagent
iii) 1phenylethanol from acetaldehyde
1) o are folloing conversions rought aout
i) en=yl chloride to en=yl alcohol
ii) en=yl alcohol to en=oic acid
iii) 1Ethylcyclohexanol from yclohexanone
15) What are phenols o are they classied
27)21) Give the structures and (- names of isomeric phenols
represented y the molecular formula 17D
22) o is phenol prepared from
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i) hloroen=ene ii) (sopropyl en=ene iii) en=ene sulphonic
acid iv) aniline
23 ) Explain the folloing
i) -henol is more acidic than phenol
ii) onitrophenol is more acidic than ocresol
iii) pnitrophenol is less volatile than onitrophenol
24) Explain the folloing reactions of phenol
i) FoleBs reaction ii) iemer0iemann reaction
2$) ame the reagents used to convert phenol intoi) picric acid ii) 2lt4lt0riromophenol iii) en=ene iv) ophenol
sulphonic acid
2) What is the action of folloing reagents on phenol i)
romine in 2 at lo temperature
ii) ilute nitric acid at room temperature iii) oncentrated
sulphuric acid at room temperature
2+) Give distinguish test eteen phenol and ethanol
2) What are ethers o are ethers classied
25) What is metamerism Give the structure and (- name of
metamers of 2ampethoxypropane
37) Write the mechanism for acidic dehydration of ethanol
31) o is diethyl ether prepared y continuous ethericationprocess Why is the process so called
32) o ill you prepared methoxyethane from
i) l8yl halide ii) ia=omethane
33) tate the important uses of i) -henol ii) diethyl ether
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34) Write the mechanism of action of hydrogen romide on tert
utyl methyl ether
3$) Explain the folloing reactions of anisole
i) romination ii) itration iii) 6riedelrafts al8ylation iv)6riedelrafts acylation
3) Explainlt i) 0he OD group attached to aromatic ring in
phenols and ii) 0he al8oxy group in al8yl aryl ethers are ortholt
para directing and activate the aromatic ring toars electrophilic
sustitution
3+) Write the chemical eCuations for Williamson synthesis of 2
Ethoxy2methypentane starting from ethanol and 2ampethylpentan2ol
3) n organic compound ith the formula 417D3 shos
properties of ether and alcohol hen treated ith an excess of
r yields only one compound 1lt2 diromomethane Write
structural formula of ether and that of alcohol
ALDEHYDES ETONES AND CABO$YLIC
ACID
1) Write the structure and give (- names of the folloing
compounds
i) chloropropionaldehyde
ii) Rhydroxyutyraldehyde
iii) isoutyraldehyde
iv) Rmethylvaleraldehyde
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v) isopropyl methyl 8etone
vi) diisopropyl 8etone
vii) mromoen=aldehyde
viii) dien=yl 8etone
ix) divinyl 8etone
x) allyl methyl 8etone
xi) ethyl phenyl 8etone
xii) nutyrophenone
2) Write the structure of folloing compounds
i) 4ampethyl3nitroen=ophenone ii) 2ampethyl4oxopentanal iii)
3Dxopentanoic acid iv) 4chloropropiophenone v) 3
ampethoxyutanal vi) 4ydroxycyclohaxane caraldehyde
3) o ill you prepare i) propiophenone from propanenitrile ii)
4chloroen=aldehyde from 4chlorotoluene iii)
yclohaxanecaraldehyde from cyclohexylmethanol iv) 4
methoxyacetophenone from anisole v) 4methylen=aldehydefrom toluene
4) rrange the folloing compounds in the increasing order of
their oiling points
i) dimethyl etherlt ethyl alcohollt propanelt acetaldehyde
ii) acetonelt npropyl alcohollt ethyl methyl alcohol and nutane
$) What is the action of hydrogen cyanide in asic medium on i)utanone ii) 2lt4dichloroen=aldehyde
) What is the action of folloing compounds on cyclohexanone in
presence of dry hydrogen chloride
i) ethyl alcohol ii) ethylene glycol
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+) Write the structure of product in the folloing reactions
i) 322D3
ii) $2D3
) Write the structures of caronyl compounds and ammonia
derivatives that comine to give folloing imines
i)
ii)
iii)
iv)v)
vi)
5) Write the chemical eCuations for aldol condensation or
anni==aro reaction that folloing compounds undergo
i) -ropanal ii) 2ampethylpropanal iii) -entanal iv) 3
ampethylutanal v) cetophenonevi) pampethoxyen=aldehyde vii) 2ampethylcyclohaxanone viii)
chloral ix) yclopentanone
x) -henyl acetaldehyde xi) 1-henylpropan1one
17) Write the structure of the maKor product of the folloing
crossed aldol condensation
i) formaldehyde and propionaldehydeii) en=aldehyde ith acetone
11) (dentify the compounds SBlt SB and SB in the folloing
reactions and rerite the complete eCuations
i)
8112019 Chemistry Question 12sci (1)
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ii)
12)o ill you eect folloing tostep conversions
i) -ropanal into utanone ii) utanone into ut2ene iii)
en=ene into mromoacetophenone iv) ex3yne into exan
3one v) en=oic acid into mnitroen=ylalcohol
13) o ill you convert en=aldehyde into folloing compounds
ampore than one steps may e reCuired
i) en=ophenone ii) en=oic acid iii) 3-henylpropan1ol iv)hydroxyphenylacetic acid
14) Give a chemical test to distinguish eteen folloing pairs of
compounds
i) Ethanal and propanone ii) -rpopanal and propanone iii)
-entane2one and pentane3one
1$) Write the structure and (- names of folloing caroxylicacids
i) ltRdimethylutanoic acid ii) Rphenylutyric acid iii) 1038389
chloromethylvaleric acid
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3) tate third la of thermodynamics What is its usefulness
3+) Why is it impossile for any sustance to have an asolute
entropy =ero at temperature greater than 7F
3) (t is impossile for a reaction to e spontaneous yetexothermic Explain ith example
35) (s it possile for a reaction to e nonspontaneous yet
exothermic Explain ith example
47) -redict the sign of in the folloing process Give reasons
for your anser
a) 2D4g) 2D2g)) 6e2D3s) H 32g) 26es) H 32Dg)
c) 2g) H 32g) 23g)
d) ampgD3s) 23g)
e) D2g) D2s)
f) l2g) 2lg)
41) What can e said aout the spontaneity of reactions hen
a) and are oth positive
) and oth are negative
c) is positive and is negative
d) is negative and is positive
42) (dentify hich memer of the folloing pairs has largerentropy Why
a) eg) in a volume of 1 or eg) in a volume of $ oth at 2$
) D2g) at 1atm or D2g) at 17atm oth at the same temperature
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c) 2$Dl) or 2$Dg)
d) $ moles of e or 2 moles of e
43) What are the signs of for the folloing reaction
Explain ith reasons
2g) 2g)
44) erive the relationship eteen G and total
4$) Iustify the inclusion of Crev and 0 in the denition of entropylt
A Crevgt 0
4) 0he increase in entropy of a system alone does not guarantee
the spontaneity of a process Explain
4+) 0he criterion of spontaneity in terms of Gis energy is the
same as that laid don y second la of thermodynamic o
PROBLEMS
1) 0hree moles of an ideal gas are expanded isothermally from a
volume of 377cm3 to 2$ at 377F against a pressure of 15atm
alculate the or8 done in atm and Koules2) Dne mole of an ideal gas is compressed from $77cm3 against a
constant pressure of 121 17$-a 0he or8 involved in the
process is 3$7I alculate the nal volume
3) alculate the maximum or8 hen 24g of oxygen are
expanded isothermally and reversily from a pressure of 1
17$-a to 1778-a at 25F
4) 0hree moles of an ideal gas are compressed isothermally andreversily to a volume of 2 0he or8 done is 2538I at 22
alculate the initial volume of a gas
8112019 Chemistry Question 12sci (1)
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$) 2 172 8g of nitrogen is expanded isothermally and
reversily at 377F from 1$1$ 17$ m 2 hen the or8 done is
found to e 1+338 I 6ind the nal pressure
) sample of a gas asors 47778I of heata) if volume remains constantlt hat is
) uppose that in addition to asorption of heat y the samplelt
the surrounding does 27778I of or8 on the samplelt hat is
c) uppose that as the original sample asors heatlt it expands
against atmospheric pressure and does 778 I of or8 on its
surroundings What is
+) alculate the or8 done in each of the folloing reactions
tate hether or8 is done on or y the system
a) 0he oxidation of one mole of D2 at $7
2D2g) H D2g) 2D3g)
) decomposition of 2 moles of 4D3 at 177
4D3s) 2Dg) H 22Dg)
) 0he enthalpy change for the reaction
24g) H 2g) 2g) is 27I hen 177m of ethylene and
177m of 2 react at 1atm pressure alculate the pressure
volume or8 and
5) alculate standard enthalpy of the reaction
6e2D3s) H 3Dg) 26es) H 3D2g) from the folloing data
f 76e2D3)A2428Imol1ltf 7D)A117$8Imol1lt
f 7D2)A353$8Imol1
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8112019 Chemistry Question 12sci (1)
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Electro chemitry
Theory
1ene the terms resistivitylt conductivity and molar
conductivity Give its ( units
2Explain the terms conductivity and molar conductivity o are
they interrelated
3Why does conductivity of s solution decrease on dilution of a
solution
4o does molar conductivity of an electrolyte vary ith
concentration
$o does the variation in molar conductivity of an electrolyte
ith concentration diers for strong and ea8 electrolytes
Explain the dierent ehaviour of strong and ea8 electrolytes
toards the variation of conductivity ith concentration
+tate and explain Fohlrausch la of independent migration of
ions o it is useful to determine the molar conductivity of ea8
electrolytes at =ero concentration
o is the molar conductivity of strong electrolytes at =ero
concentration determined y graphical method Why is this
method not useful for ea8 electrolytes
5What is cell constant What is its unit o is it determined
17ene anode and cathode
11 Why is cathode in electrolytic cell considered to e negative
and anode positive
12 -redict the half cell reactions that occur hen fused Fl is
electroly=ed in a cell ith inert electrodes What is the overall cell
reaction
8112019 Chemistry Question 12sci (1)
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13 tate 6aradayBs las of electrolysis
14o ill you calculate the numer of moles of electrons
actually passed and mass of the sustance produced during
electrolysis of a salt solution using reaction stoichiometry1$o many electrons ill have a total charge of 1 coulom
1 o many faradayBs ould e reCuired to plate out 177 mole
of free metal from the folloing cations
a) ampg2H
) r3H
c) -2H
d) uH
1+ ene coulom and faraday
1 escrie the electrolysis of molten al using inert
electrodes
15 What is the dierence eteen electrolytic cell and voltaic
cell
27 Why is anode in galvanic cell considered to e negative and
cathode positive electrode
21 8etch the cell for the electrolysis of molten al (ndicate
cathodelt anode and their signs ho the Jo of electrons and
ions
22 What is salt ridge What are its functions in galvanic cell
23 What are the conventions used to rite cell diagramcell
formula)
24 escrie the construction of aniel cell Write electrode half
reactions and net cell reaction in aniel cell
8112019 Chemistry Question 12sci (1)
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2$ escrie the folloing types of electrodes giving one
examplelt ith reference to formulationlt electrode reaction and
ernst eCuation for electrode potential
a) metalsparingly salt electrode) gas electrode
2 What is redox electrode Give one example ith formulationlt
electrode reaction and ernst eCuation for electrode potential
2+ ene the terms oxidation potentiallt reduction potential and
cell potential
2 What conditions are reCuired for a cell potential to e calledstandard cell potential
25 6ormulate a cell for each of the folloing electrode reactions
a) n2H aC) H 2gl s) L n4H aC) H 2gs) H2l aC)
) ampg s) H r2l) L ampg2H aC) H 2r aC)
37 6ormulate a cell from the folloing electrode reactions
a) l2g) H 2e L 2l aC)
) 2( aC) L (2s) H 2e
31 What are standard electrode potential and standard emf of
the galvanic cell
32 Write ernst eCuation and explain the terms involved in it
What part of the eCuation represents the correction factor for
nonstandard state conditions
33 Write ernst eCuation for the folloing reactions
a) rs) H 36e3H aC) L r3H aC) H 36e2H aC)
) l3H aC) H 3e L l s)
8112019 Chemistry Question 12sci (1)
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34 onsider the folloing E7 values and half reactions
(2s) H 2e L 2( aC) E7A7$3$M
u2H aC) H 2e L u s) E7A733+M
d2H aC) H 2e L ds) E7A77473
a) Which of the metals or nonmetals or ions is the strongest
oxidi=ing agent and hich is the strongest reducing agent
) 0he half reactions can e used to construct three galvanic
cells Which ill have the highest cell potential
3$ -redict hether
a) gH can oxidi=e - to -2H under standard state condition
) E7gA7+55M and E7
-A712M
3 -redict hether the folloing reactions occur under standard
state conditions
a) Dxidation of gs) y l2g) E7gA7Mlt E7
l2A13M
) eduction of 6e
3H
to 6e
2H
y us) E
7
6e3Hlt 6e2H A 7++MltE7uA14M
3+ 8etch and descrie the operation of
a) dry cell
) 2D2 fuel cell
3 What are the advantages and disadvantages of fuel cells
35 8etch lead storage cell
47 Write electrode reaction and overall cell reaction during the
operation of lead storage cell
41 Write electrode reaction and overall cell reaction hen lead
accumulator ehaves as an electrolytic cell
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42 o can ernst eCuation e used to sho that electrode
potential is eCual to the standard electrode potential y putting
approximate values in ernst eCuation se u2HNd half cell for
illustration
43 o are G7lt E7cell and eCuilirium constant related for a
particular reaction
44 Why is eCuilirium constant related to E7cell and not Ecell
4$ G7 for a redox reaction depends on the numer of electrons
transferred Explain
4 o does the eCuiliriumlt G7An6E7 explain that an
electrical potential is an intensive property
4+ Write shorthand notation for the cell for each of the folloing
reactions
a) u2H aC) H 2gs) H 2r L u s) H 2gr s)
) n2H aC) is oxidi=ed y r2 l)
4 rrange the folloing reducing agents in order of increasing
strength under standard state conditions 0he standard potentialsfor the reduction half reactions are given
gH aC) 7M)lt l3H aC) 1M)lt 62g) 2+M)lt l2g) 13M)lt
(2s) 7$4M)lt d2H aC) 74M)
45 rrange the folloing oxidi=ing agents in order of increasing
strength under standard state conditions 0he standard potentials
for the reduction half reactions are given
ls) 1M)lt l aC) 13M)lt us) 734M)lt 6es)744M)lt r
aC) 175M)lt is) 72M)
$7 Which species in each of the folloing pairs is etter oxidi=ing
agent under standard state conditions standard potential are
given) Give reasons for your anser
8112019 Chemistry Question 12sci (1)
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a) r2l) 175M) or u3H 14M)
) H aC) or gH aC) 7M)
c) -2H aC) 713M) or o2H 72M)
d) l2 g) 13M) or r3H 7+4M)
$1 Which species in each of the folloing pairs is etter reducing
agent under standard conditions E7 values are given Give
reasons for your anser
a) Fs) 2353M) or ampgs) 23M)
) o2H aC) 11M) or (n s) 714M)
c) e3H aC) 11M) or 0i2H73+M)
d) gl) 7M) or is) 723M)
PROBLEMS
1 conductivity cell lled ith 771amp Fl given at 2$o the
resistance of 74ohms 0he conductivity of Fl at 2$
o
is 7777
CHEMISTRY
d f O DF EEampE0
1) What are dloc8 elements
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2) What are floc8 elements
3) Explain the meaning of
i) 0ransition series ii) (nner transition element
4) Explain the position of the folloing in periodic tale
i) dloc8 elements ii) anthanoids iii) ctinoids
$) Explain the oxidation state of 1st ro elements of transition
series
) Explain the oxidation states of lanthanoids and actinoids
+) Why do lanthanoids form coloured compounds ) Explainlt most of the transition metal compounds are
remar8aly coloured
5) Why chromium has electronic conguration 3d$ 4s1 and not 3d4
4s2
17) Why does copper sho anormal electronic conguration
11) Explainlt the trends in atomic and ionic si=es of lanthanoidsand also of 1st ro elements of transition series
12) What are actinoids
13) What are transuranic elements Write their name
14) Why transition elements sho tendency to form large numer
of complexes
1$) Explain the compounds of copper ((() are coloured ut thoseof =inc are colourless
1) o is potassium dichromate prepared from chrome ion
1+) Write the preparationlt properties and use of potassium
permanganate
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1) Explainlt hy -t(M) complexes are generally octahedral hile
-t(() complexes are sCuare planar
15) ierentiate eteen lanthanoids and actinoids
27) What are chemical tins Give examples
21) Explain hy Gd3H is colourless
COORDINATION COMPOUNDS
1) What is the dierence eteen doule salt and coordinationcompounds
2) Explainlt hy 6e4)2 D4)22D) is a salt ut F 4P6e)Q is a
complex compound
3) Write the formula of the folloing complexes
i) alcium hexa cyano ferrate (()
ii) iammine dichloro platinum
iii) is ethylene diammine) dichloro iridium ((() ion
iv) -entamine caronato chromium ((() D(E
v) 0risethylene diammine ) coalt((() sulphate
vi) iamine ethylene diammine nic8el (() acetate
4) Write the rules hich are applied hile riting the formulas of
coordination compounds
$) ene the terms
i) entral metal atomgtion
ii) igand
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iii) oordination compound
iv) oordination sphere
v) oordination numer
vi) oordination polyhedral
vii) omoleptic and heteroleptic complexes
viii) harge on the complexes
ix) oordination entity
) Write (- name of the folloing complexes
i) Pr2D)4 l2QD3
ii) P-ten)l4Q
iii) F 2Pi)4Q
iv) sP6el4Q
v) rl3-y)3
vi) F 3Po2D4)3Q
vii) Por2en)2Q
viii) P-tl4Q2
ix) Po2D))en)2Q2H
x) F 3Pl2D4)3Q
+) Explain the importance of principles of additive nomenclature
) (dentify the folloing ions y a simple test forming complex
compound
i) u2H ii) i2H iii) 6e3H iv) o2H
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5) Dn the asis of WernerBs theory explainlt hy coalt amine
complexlt ol343 hen treated ith gD3 solution
precipitates only one ion even though there are three ions
17) alculate the eective atomic numer E) of the centralmetal atom in the folloing compounds
i) F 3P6e)Q ii) rD)
11) Write the postulates of WernerBs theory
12) Explain the onding in ol333 and ol3$3
13) Explain stereoisomerism in metal complexes ith coordination
numer 4 and 14) Why the tetrahedral complexes do not exhiit geometrical
isomerism
1$) ra cis and trans geometrical isomers of
i) dichlororomo iodo palladium (() ion
ii) P-t(()3)2l2Q
iii) Po((()3)l3Q
iv) Po((()3)42D)lQ2H
1) ra all possile geometrical isomers of P-t(M)
3)2-y)2l2Q2H ion
1+) Write oxidation statelt coordination numer and electronic
conguration of the metal atom in the folloing complexes
i) rl3-y)3 ii) F 4Pampn)Q
1) lassify the folloing ligands into monodentatelt polydentate
and amidentate
i) 3 ii) iii) iv) v) D2 vi) ethylene diammine
vii) oxalate
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viii) triaminotriethylamine
15) ol3$32D is a pin8 solidlt the solution of this salt is also
pin8 and formed 3mol of gl ith silver nitrate solution Dn
heating pin8 solidlt it loses one ater molecule and forms purplesolid having same ratio of o3l as that of pin8 solid 0he
purple solid hen dissolved in ater and treated ith forms 1 mol
of gl ra the structure and name of the pin8 and purple
solids
27) ame the octahedral complex ions
i) Po2D4) en)2QH ii) transPr)4 3)2Q
21) ra the structures of the folloing complexes
i) Pol4Q2 ii) Pampn3)Q2H iii) P-tlQ iv) iD)4 v) Pi)4Q2
22) (n an octahedral crystal eldlt dra the gure to sho splitting
of dorital
23) What are ea8 eld and strong eld ligands What is spectro
chemical series
24) Pi)4Q2 is diamagnetic hile Pr3)Q3H is paramagnetltexplain
2$) Dn the asis of valence ond theory explain the nature of
onding in the folloing complexes
i) Po6Q3 ii) Po2D4)3Q3
2) lue coloured copper sulphate solution gave folloing
experimental results Explain the same
i) With aCueous potassium chloride it gave right green solution
ii) With aCueous potassium Juoride it gave a green precipitate
2+) ra the structures of optically active isomers of Poen)3Q3H
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2) ra the geometrical and optical isomers of
i) Pol2en)2QH ii) Polen)23)Q2H
25) What is lin8age isomerism Explain ith an example
37) What are hydrate isomers Explain ith examples
31) Explain the structure of
i) upraammonium sulphate ii) Po3)Q3H
32) What are the limitations of valence ond theory
33) Explain the magnetic properties of coordination compounds
34) Write the salient features of crystal eld theory What are itslimitations
3$) Explain the octahedral geometry of complexes using crystal
eld theory
3) Write a note on colours in coordination compounds
3+) Explain the factors aecting the staility of coordination
compound3) Write rief the applications of coordination compounds
HALOGEN DERIVATIVES O ALANES AND ARENES
1) What are al8yl halides o are they classied
2) Write (- names of the folloing compounds
i)
ii) 2Al
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iii)
iv)
v)
vi) secutyl chloride
vii) neopentyl romide
viii) tutyl iodide
ix) isopropyl romide
3) o is ethyl romide prepared from
i) Ethyl alcohol ii) ethane iii) ethane
4)Write the preparation of isopropyl chloride using the folloing
reagents
i) -l3 ii) -l$ iii) l2 iv) l v) Dl2
$) o is group replaced y folloing functional rroups
i) OD ii) O iii) O iv) O2
) Write a note on
i) andmeyerBs reaction ii) Wurt= reaction iii) 6in8elstein reaction
iv) 6ittig reaction v) 6riedel raft reaction
+) (dentify and in the folloing
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) Give the structures of the folloing compounds
i) 3romo2methyl pentane ii) 2romo3ethyl hexane iii) 1
holo utane
iv) pichloroen=ene v) 1lt1lt10richloroethane
5) student has performed an experiment in the laoratory e
mixed ater ith hexane and found to layers separated econd
time he mixed chloroform ith ater and he again found to
layers in the test tue Explain hich ill e upper layer and
hich one ill e loer layer in oth the experiments
17) onvert 1hloroutane into the folloing compounds
i) utane1ol ii) 1(odoutane iii) 3222 iv)
11) 6or each pair of compoundslt state hich compound is etter
2 sustrate
i) 2romoutanelt isopropyl romide ii) 1(odo2lt2dimethyl
propane or isopropyl iodide
12) hoose the memer that ill react faster from the folloing
pairs y 1 mechanism
13) -redict the expected product of sustitution reaction
i) isoutyl chloride mH sodium ethoxide
ii) nutyl chloride H sodium
iii) 1hloro propane H aC potassium hydroxide
iv) aniline H aD2gt l
14) Write the products
i) $22A2 H r L
ii) $A2 H r
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iii)
iv)
v)
1$) (dentify the chiral and achiral molecules
i)
ii)
iii)
1) iscuss 2 mechanism of methyl romide using aCueous
FD ra energy prole diagram1+) Write the mechanism of the reaction hen tutyl chloride is
treated ith aCueous FD ith energy prole diagram
1) ierentiate eteen 1 and 2 mechanism
15) Explain the nature of ond in
i) 322 ii)
27) What are uses of
i) 0 ii) (odoform iii) hloroform iv) aron tetrachloride
21) l8yl halides are polar and miscile ith aterlt explain
22) Which one of the folloing is more easily hydrolysed y
aCueous FD
$l$ and $2l
23) rrange the folloing groups in descending order 2lt D3lt
D3lt DD and l
24) ssign or conguration to each of the folloing
structures
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i)
ii)
iii)
iv)
DDlt -ED E0E
1) What are alcohols o are they classied
2) What are monohydric alcohols o are they classied
4) Write the structures of folloing alcohols
i) 1Ethylcyclohexanol ii) ex3en2ol iii)yclohex2en1ol
iv) -entane1lt4diol
v) 2lt4imethylhexane1lt3lt$triol
$) Explain the folloing
i) -ropan1ol has higher oiling point than nutane
ii) ampethanol is more solule in ater than -ropan1ol
) Write the mechanism of hydration of ethylene to ethyl alcohol
+) -ropan1ol can not e prepared y acid catalyst hydration of
propenelt then ho is propene converted into propan1ol
)5) o is propanone converted into
i) -ropan2ol ii) 2ampethyl propan2ol
17) o ill you otain utan2ol from
8112019 Chemistry Question 12sci (1)
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i) -ropanal ii) utan2one iii) ut2ene
11) o is propan1ol prepared from
i) -ropanal ii) -ropanoic acid
12) o is cyclopentanol prepared from
i) yclopentanone ii) yclopentene
14) Write the mechanism of acid catalysed dehydration of ethanol
to give ethane
1$) Write the structure of aldehyde lt caroxylic acid and ester
that yield folloing alcohol
1+) o ill you prepare
i) 2ampethylutane1ol from an al8ene
ii) cyclohexylmethanol from a Grignard reagent
iii) 1phenylethanol from acetaldehyde
1) o are folloing conversions rought aout
i) en=yl chloride to en=yl alcohol
ii) en=yl alcohol to en=oic acid
iii) 1Ethylcyclohexanol from yclohexanone
15) What are phenols o are they classied
27)21) Give the structures and (- names of isomeric phenols
represented y the molecular formula 17D
22) o is phenol prepared from
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i) hloroen=ene ii) (sopropyl en=ene iii) en=ene sulphonic
acid iv) aniline
23 ) Explain the folloing
i) -henol is more acidic than phenol
ii) onitrophenol is more acidic than ocresol
iii) pnitrophenol is less volatile than onitrophenol
24) Explain the folloing reactions of phenol
i) FoleBs reaction ii) iemer0iemann reaction
2$) ame the reagents used to convert phenol intoi) picric acid ii) 2lt4lt0riromophenol iii) en=ene iv) ophenol
sulphonic acid
2) What is the action of folloing reagents on phenol i)
romine in 2 at lo temperature
ii) ilute nitric acid at room temperature iii) oncentrated
sulphuric acid at room temperature
2+) Give distinguish test eteen phenol and ethanol
2) What are ethers o are ethers classied
25) What is metamerism Give the structure and (- name of
metamers of 2ampethoxypropane
37) Write the mechanism for acidic dehydration of ethanol
31) o is diethyl ether prepared y continuous ethericationprocess Why is the process so called
32) o ill you prepared methoxyethane from
i) l8yl halide ii) ia=omethane
33) tate the important uses of i) -henol ii) diethyl ether
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34) Write the mechanism of action of hydrogen romide on tert
utyl methyl ether
3$) Explain the folloing reactions of anisole
i) romination ii) itration iii) 6riedelrafts al8ylation iv)6riedelrafts acylation
3) Explainlt i) 0he OD group attached to aromatic ring in
phenols and ii) 0he al8oxy group in al8yl aryl ethers are ortholt
para directing and activate the aromatic ring toars electrophilic
sustitution
3+) Write the chemical eCuations for Williamson synthesis of 2
Ethoxy2methypentane starting from ethanol and 2ampethylpentan2ol
3) n organic compound ith the formula 417D3 shos
properties of ether and alcohol hen treated ith an excess of
r yields only one compound 1lt2 diromomethane Write
structural formula of ether and that of alcohol
ALDEHYDES ETONES AND CABO$YLIC
ACID
1) Write the structure and give (- names of the folloing
compounds
i) chloropropionaldehyde
ii) Rhydroxyutyraldehyde
iii) isoutyraldehyde
iv) Rmethylvaleraldehyde
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v) isopropyl methyl 8etone
vi) diisopropyl 8etone
vii) mromoen=aldehyde
viii) dien=yl 8etone
ix) divinyl 8etone
x) allyl methyl 8etone
xi) ethyl phenyl 8etone
xii) nutyrophenone
2) Write the structure of folloing compounds
i) 4ampethyl3nitroen=ophenone ii) 2ampethyl4oxopentanal iii)
3Dxopentanoic acid iv) 4chloropropiophenone v) 3
ampethoxyutanal vi) 4ydroxycyclohaxane caraldehyde
3) o ill you prepare i) propiophenone from propanenitrile ii)
4chloroen=aldehyde from 4chlorotoluene iii)
yclohaxanecaraldehyde from cyclohexylmethanol iv) 4
methoxyacetophenone from anisole v) 4methylen=aldehydefrom toluene
4) rrange the folloing compounds in the increasing order of
their oiling points
i) dimethyl etherlt ethyl alcohollt propanelt acetaldehyde
ii) acetonelt npropyl alcohollt ethyl methyl alcohol and nutane
$) What is the action of hydrogen cyanide in asic medium on i)utanone ii) 2lt4dichloroen=aldehyde
) What is the action of folloing compounds on cyclohexanone in
presence of dry hydrogen chloride
i) ethyl alcohol ii) ethylene glycol
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+) Write the structure of product in the folloing reactions
i) 322D3
ii) $2D3
) Write the structures of caronyl compounds and ammonia
derivatives that comine to give folloing imines
i)
ii)
iii)
iv)v)
vi)
5) Write the chemical eCuations for aldol condensation or
anni==aro reaction that folloing compounds undergo
i) -ropanal ii) 2ampethylpropanal iii) -entanal iv) 3
ampethylutanal v) cetophenonevi) pampethoxyen=aldehyde vii) 2ampethylcyclohaxanone viii)
chloral ix) yclopentanone
x) -henyl acetaldehyde xi) 1-henylpropan1one
17) Write the structure of the maKor product of the folloing
crossed aldol condensation
i) formaldehyde and propionaldehydeii) en=aldehyde ith acetone
11) (dentify the compounds SBlt SB and SB in the folloing
reactions and rerite the complete eCuations
i)
8112019 Chemistry Question 12sci (1)
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ii)
12)o ill you eect folloing tostep conversions
i) -ropanal into utanone ii) utanone into ut2ene iii)
en=ene into mromoacetophenone iv) ex3yne into exan
3one v) en=oic acid into mnitroen=ylalcohol
13) o ill you convert en=aldehyde into folloing compounds
ampore than one steps may e reCuired
i) en=ophenone ii) en=oic acid iii) 3-henylpropan1ol iv)hydroxyphenylacetic acid
14) Give a chemical test to distinguish eteen folloing pairs of
compounds
i) Ethanal and propanone ii) -rpopanal and propanone iii)
-entane2one and pentane3one
1$) Write the structure and (- names of folloing caroxylicacids
i) ltRdimethylutanoic acid ii) Rphenylutyric acid iii) 1038389
chloromethylvaleric acid
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c) 2$Dl) or 2$Dg)
d) $ moles of e or 2 moles of e
43) What are the signs of for the folloing reaction
Explain ith reasons
2g) 2g)
44) erive the relationship eteen G and total
4$) Iustify the inclusion of Crev and 0 in the denition of entropylt
A Crevgt 0
4) 0he increase in entropy of a system alone does not guarantee
the spontaneity of a process Explain
4+) 0he criterion of spontaneity in terms of Gis energy is the
same as that laid don y second la of thermodynamic o
PROBLEMS
1) 0hree moles of an ideal gas are expanded isothermally from a
volume of 377cm3 to 2$ at 377F against a pressure of 15atm
alculate the or8 done in atm and Koules2) Dne mole of an ideal gas is compressed from $77cm3 against a
constant pressure of 121 17$-a 0he or8 involved in the
process is 3$7I alculate the nal volume
3) alculate the maximum or8 hen 24g of oxygen are
expanded isothermally and reversily from a pressure of 1
17$-a to 1778-a at 25F
4) 0hree moles of an ideal gas are compressed isothermally andreversily to a volume of 2 0he or8 done is 2538I at 22
alculate the initial volume of a gas
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$) 2 172 8g of nitrogen is expanded isothermally and
reversily at 377F from 1$1$ 17$ m 2 hen the or8 done is
found to e 1+338 I 6ind the nal pressure
) sample of a gas asors 47778I of heata) if volume remains constantlt hat is
) uppose that in addition to asorption of heat y the samplelt
the surrounding does 27778I of or8 on the samplelt hat is
c) uppose that as the original sample asors heatlt it expands
against atmospheric pressure and does 778 I of or8 on its
surroundings What is
+) alculate the or8 done in each of the folloing reactions
tate hether or8 is done on or y the system
a) 0he oxidation of one mole of D2 at $7
2D2g) H D2g) 2D3g)
) decomposition of 2 moles of 4D3 at 177
4D3s) 2Dg) H 22Dg)
) 0he enthalpy change for the reaction
24g) H 2g) 2g) is 27I hen 177m of ethylene and
177m of 2 react at 1atm pressure alculate the pressure
volume or8 and
5) alculate standard enthalpy of the reaction
6e2D3s) H 3Dg) 26es) H 3D2g) from the folloing data
f 76e2D3)A2428Imol1ltf 7D)A117$8Imol1lt
f 7D2)A353$8Imol1
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8112019 Chemistry Question 12sci (1)
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Electro chemitry
Theory
1ene the terms resistivitylt conductivity and molar
conductivity Give its ( units
2Explain the terms conductivity and molar conductivity o are
they interrelated
3Why does conductivity of s solution decrease on dilution of a
solution
4o does molar conductivity of an electrolyte vary ith
concentration
$o does the variation in molar conductivity of an electrolyte
ith concentration diers for strong and ea8 electrolytes
Explain the dierent ehaviour of strong and ea8 electrolytes
toards the variation of conductivity ith concentration
+tate and explain Fohlrausch la of independent migration of
ions o it is useful to determine the molar conductivity of ea8
electrolytes at =ero concentration
o is the molar conductivity of strong electrolytes at =ero
concentration determined y graphical method Why is this
method not useful for ea8 electrolytes
5What is cell constant What is its unit o is it determined
17ene anode and cathode
11 Why is cathode in electrolytic cell considered to e negative
and anode positive
12 -redict the half cell reactions that occur hen fused Fl is
electroly=ed in a cell ith inert electrodes What is the overall cell
reaction
8112019 Chemistry Question 12sci (1)
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13 tate 6aradayBs las of electrolysis
14o ill you calculate the numer of moles of electrons
actually passed and mass of the sustance produced during
electrolysis of a salt solution using reaction stoichiometry1$o many electrons ill have a total charge of 1 coulom
1 o many faradayBs ould e reCuired to plate out 177 mole
of free metal from the folloing cations
a) ampg2H
) r3H
c) -2H
d) uH
1+ ene coulom and faraday
1 escrie the electrolysis of molten al using inert
electrodes
15 What is the dierence eteen electrolytic cell and voltaic
cell
27 Why is anode in galvanic cell considered to e negative and
cathode positive electrode
21 8etch the cell for the electrolysis of molten al (ndicate
cathodelt anode and their signs ho the Jo of electrons and
ions
22 What is salt ridge What are its functions in galvanic cell
23 What are the conventions used to rite cell diagramcell
formula)
24 escrie the construction of aniel cell Write electrode half
reactions and net cell reaction in aniel cell
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2$ escrie the folloing types of electrodes giving one
examplelt ith reference to formulationlt electrode reaction and
ernst eCuation for electrode potential
a) metalsparingly salt electrode) gas electrode
2 What is redox electrode Give one example ith formulationlt
electrode reaction and ernst eCuation for electrode potential
2+ ene the terms oxidation potentiallt reduction potential and
cell potential
2 What conditions are reCuired for a cell potential to e calledstandard cell potential
25 6ormulate a cell for each of the folloing electrode reactions
a) n2H aC) H 2gl s) L n4H aC) H 2gs) H2l aC)
) ampg s) H r2l) L ampg2H aC) H 2r aC)
37 6ormulate a cell from the folloing electrode reactions
a) l2g) H 2e L 2l aC)
) 2( aC) L (2s) H 2e
31 What are standard electrode potential and standard emf of
the galvanic cell
32 Write ernst eCuation and explain the terms involved in it
What part of the eCuation represents the correction factor for
nonstandard state conditions
33 Write ernst eCuation for the folloing reactions
a) rs) H 36e3H aC) L r3H aC) H 36e2H aC)
) l3H aC) H 3e L l s)
8112019 Chemistry Question 12sci (1)
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34 onsider the folloing E7 values and half reactions
(2s) H 2e L 2( aC) E7A7$3$M
u2H aC) H 2e L u s) E7A733+M
d2H aC) H 2e L ds) E7A77473
a) Which of the metals or nonmetals or ions is the strongest
oxidi=ing agent and hich is the strongest reducing agent
) 0he half reactions can e used to construct three galvanic
cells Which ill have the highest cell potential
3$ -redict hether
a) gH can oxidi=e - to -2H under standard state condition
) E7gA7+55M and E7
-A712M
3 -redict hether the folloing reactions occur under standard
state conditions
a) Dxidation of gs) y l2g) E7gA7Mlt E7
l2A13M
) eduction of 6e
3H
to 6e
2H
y us) E
7
6e3Hlt 6e2H A 7++MltE7uA14M
3+ 8etch and descrie the operation of
a) dry cell
) 2D2 fuel cell
3 What are the advantages and disadvantages of fuel cells
35 8etch lead storage cell
47 Write electrode reaction and overall cell reaction during the
operation of lead storage cell
41 Write electrode reaction and overall cell reaction hen lead
accumulator ehaves as an electrolytic cell
8112019 Chemistry Question 12sci (1)
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42 o can ernst eCuation e used to sho that electrode
potential is eCual to the standard electrode potential y putting
approximate values in ernst eCuation se u2HNd half cell for
illustration
43 o are G7lt E7cell and eCuilirium constant related for a
particular reaction
44 Why is eCuilirium constant related to E7cell and not Ecell
4$ G7 for a redox reaction depends on the numer of electrons
transferred Explain
4 o does the eCuiliriumlt G7An6E7 explain that an
electrical potential is an intensive property
4+ Write shorthand notation for the cell for each of the folloing
reactions
a) u2H aC) H 2gs) H 2r L u s) H 2gr s)
) n2H aC) is oxidi=ed y r2 l)
4 rrange the folloing reducing agents in order of increasing
strength under standard state conditions 0he standard potentialsfor the reduction half reactions are given
gH aC) 7M)lt l3H aC) 1M)lt 62g) 2+M)lt l2g) 13M)lt
(2s) 7$4M)lt d2H aC) 74M)
45 rrange the folloing oxidi=ing agents in order of increasing
strength under standard state conditions 0he standard potentials
for the reduction half reactions are given
ls) 1M)lt l aC) 13M)lt us) 734M)lt 6es)744M)lt r
aC) 175M)lt is) 72M)
$7 Which species in each of the folloing pairs is etter oxidi=ing
agent under standard state conditions standard potential are
given) Give reasons for your anser
8112019 Chemistry Question 12sci (1)
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a) r2l) 175M) or u3H 14M)
) H aC) or gH aC) 7M)
c) -2H aC) 713M) or o2H 72M)
d) l2 g) 13M) or r3H 7+4M)
$1 Which species in each of the folloing pairs is etter reducing
agent under standard conditions E7 values are given Give
reasons for your anser
a) Fs) 2353M) or ampgs) 23M)
) o2H aC) 11M) or (n s) 714M)
c) e3H aC) 11M) or 0i2H73+M)
d) gl) 7M) or is) 723M)
PROBLEMS
1 conductivity cell lled ith 771amp Fl given at 2$o the
resistance of 74ohms 0he conductivity of Fl at 2$
o
is 7777
CHEMISTRY
d f O DF EEampE0
1) What are dloc8 elements
8112019 Chemistry Question 12sci (1)
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2) What are floc8 elements
3) Explain the meaning of
i) 0ransition series ii) (nner transition element
4) Explain the position of the folloing in periodic tale
i) dloc8 elements ii) anthanoids iii) ctinoids
$) Explain the oxidation state of 1st ro elements of transition
series
) Explain the oxidation states of lanthanoids and actinoids
+) Why do lanthanoids form coloured compounds ) Explainlt most of the transition metal compounds are
remar8aly coloured
5) Why chromium has electronic conguration 3d$ 4s1 and not 3d4
4s2
17) Why does copper sho anormal electronic conguration
11) Explainlt the trends in atomic and ionic si=es of lanthanoidsand also of 1st ro elements of transition series
12) What are actinoids
13) What are transuranic elements Write their name
14) Why transition elements sho tendency to form large numer
of complexes
1$) Explain the compounds of copper ((() are coloured ut thoseof =inc are colourless
1) o is potassium dichromate prepared from chrome ion
1+) Write the preparationlt properties and use of potassium
permanganate
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1) Explainlt hy -t(M) complexes are generally octahedral hile
-t(() complexes are sCuare planar
15) ierentiate eteen lanthanoids and actinoids
27) What are chemical tins Give examples
21) Explain hy Gd3H is colourless
COORDINATION COMPOUNDS
1) What is the dierence eteen doule salt and coordinationcompounds
2) Explainlt hy 6e4)2 D4)22D) is a salt ut F 4P6e)Q is a
complex compound
3) Write the formula of the folloing complexes
i) alcium hexa cyano ferrate (()
ii) iammine dichloro platinum
iii) is ethylene diammine) dichloro iridium ((() ion
iv) -entamine caronato chromium ((() D(E
v) 0risethylene diammine ) coalt((() sulphate
vi) iamine ethylene diammine nic8el (() acetate
4) Write the rules hich are applied hile riting the formulas of
coordination compounds
$) ene the terms
i) entral metal atomgtion
ii) igand
8112019 Chemistry Question 12sci (1)
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iii) oordination compound
iv) oordination sphere
v) oordination numer
vi) oordination polyhedral
vii) omoleptic and heteroleptic complexes
viii) harge on the complexes
ix) oordination entity
) Write (- name of the folloing complexes
i) Pr2D)4 l2QD3
ii) P-ten)l4Q
iii) F 2Pi)4Q
iv) sP6el4Q
v) rl3-y)3
vi) F 3Po2D4)3Q
vii) Por2en)2Q
viii) P-tl4Q2
ix) Po2D))en)2Q2H
x) F 3Pl2D4)3Q
+) Explain the importance of principles of additive nomenclature
) (dentify the folloing ions y a simple test forming complex
compound
i) u2H ii) i2H iii) 6e3H iv) o2H
8112019 Chemistry Question 12sci (1)
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5) Dn the asis of WernerBs theory explainlt hy coalt amine
complexlt ol343 hen treated ith gD3 solution
precipitates only one ion even though there are three ions
17) alculate the eective atomic numer E) of the centralmetal atom in the folloing compounds
i) F 3P6e)Q ii) rD)
11) Write the postulates of WernerBs theory
12) Explain the onding in ol333 and ol3$3
13) Explain stereoisomerism in metal complexes ith coordination
numer 4 and 14) Why the tetrahedral complexes do not exhiit geometrical
isomerism
1$) ra cis and trans geometrical isomers of
i) dichlororomo iodo palladium (() ion
ii) P-t(()3)2l2Q
iii) Po((()3)l3Q
iv) Po((()3)42D)lQ2H
1) ra all possile geometrical isomers of P-t(M)
3)2-y)2l2Q2H ion
1+) Write oxidation statelt coordination numer and electronic
conguration of the metal atom in the folloing complexes
i) rl3-y)3 ii) F 4Pampn)Q
1) lassify the folloing ligands into monodentatelt polydentate
and amidentate
i) 3 ii) iii) iv) v) D2 vi) ethylene diammine
vii) oxalate
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viii) triaminotriethylamine
15) ol3$32D is a pin8 solidlt the solution of this salt is also
pin8 and formed 3mol of gl ith silver nitrate solution Dn
heating pin8 solidlt it loses one ater molecule and forms purplesolid having same ratio of o3l as that of pin8 solid 0he
purple solid hen dissolved in ater and treated ith forms 1 mol
of gl ra the structure and name of the pin8 and purple
solids
27) ame the octahedral complex ions
i) Po2D4) en)2QH ii) transPr)4 3)2Q
21) ra the structures of the folloing complexes
i) Pol4Q2 ii) Pampn3)Q2H iii) P-tlQ iv) iD)4 v) Pi)4Q2
22) (n an octahedral crystal eldlt dra the gure to sho splitting
of dorital
23) What are ea8 eld and strong eld ligands What is spectro
chemical series
24) Pi)4Q2 is diamagnetic hile Pr3)Q3H is paramagnetltexplain
2$) Dn the asis of valence ond theory explain the nature of
onding in the folloing complexes
i) Po6Q3 ii) Po2D4)3Q3
2) lue coloured copper sulphate solution gave folloing
experimental results Explain the same
i) With aCueous potassium chloride it gave right green solution
ii) With aCueous potassium Juoride it gave a green precipitate
2+) ra the structures of optically active isomers of Poen)3Q3H
8112019 Chemistry Question 12sci (1)
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2) ra the geometrical and optical isomers of
i) Pol2en)2QH ii) Polen)23)Q2H
25) What is lin8age isomerism Explain ith an example
37) What are hydrate isomers Explain ith examples
31) Explain the structure of
i) upraammonium sulphate ii) Po3)Q3H
32) What are the limitations of valence ond theory
33) Explain the magnetic properties of coordination compounds
34) Write the salient features of crystal eld theory What are itslimitations
3$) Explain the octahedral geometry of complexes using crystal
eld theory
3) Write a note on colours in coordination compounds
3+) Explain the factors aecting the staility of coordination
compound3) Write rief the applications of coordination compounds
HALOGEN DERIVATIVES O ALANES AND ARENES
1) What are al8yl halides o are they classied
2) Write (- names of the folloing compounds
i)
ii) 2Al
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iii)
iv)
v)
vi) secutyl chloride
vii) neopentyl romide
viii) tutyl iodide
ix) isopropyl romide
3) o is ethyl romide prepared from
i) Ethyl alcohol ii) ethane iii) ethane
4)Write the preparation of isopropyl chloride using the folloing
reagents
i) -l3 ii) -l$ iii) l2 iv) l v) Dl2
$) o is group replaced y folloing functional rroups
i) OD ii) O iii) O iv) O2
) Write a note on
i) andmeyerBs reaction ii) Wurt= reaction iii) 6in8elstein reaction
iv) 6ittig reaction v) 6riedel raft reaction
+) (dentify and in the folloing
8112019 Chemistry Question 12sci (1)
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) Give the structures of the folloing compounds
i) 3romo2methyl pentane ii) 2romo3ethyl hexane iii) 1
holo utane
iv) pichloroen=ene v) 1lt1lt10richloroethane
5) student has performed an experiment in the laoratory e
mixed ater ith hexane and found to layers separated econd
time he mixed chloroform ith ater and he again found to
layers in the test tue Explain hich ill e upper layer and
hich one ill e loer layer in oth the experiments
17) onvert 1hloroutane into the folloing compounds
i) utane1ol ii) 1(odoutane iii) 3222 iv)
11) 6or each pair of compoundslt state hich compound is etter
2 sustrate
i) 2romoutanelt isopropyl romide ii) 1(odo2lt2dimethyl
propane or isopropyl iodide
12) hoose the memer that ill react faster from the folloing
pairs y 1 mechanism
13) -redict the expected product of sustitution reaction
i) isoutyl chloride mH sodium ethoxide
ii) nutyl chloride H sodium
iii) 1hloro propane H aC potassium hydroxide
iv) aniline H aD2gt l
14) Write the products
i) $22A2 H r L
ii) $A2 H r
8112019 Chemistry Question 12sci (1)
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iii)
iv)
v)
1$) (dentify the chiral and achiral molecules
i)
ii)
iii)
1) iscuss 2 mechanism of methyl romide using aCueous
FD ra energy prole diagram1+) Write the mechanism of the reaction hen tutyl chloride is
treated ith aCueous FD ith energy prole diagram
1) ierentiate eteen 1 and 2 mechanism
15) Explain the nature of ond in
i) 322 ii)
27) What are uses of
i) 0 ii) (odoform iii) hloroform iv) aron tetrachloride
21) l8yl halides are polar and miscile ith aterlt explain
22) Which one of the folloing is more easily hydrolysed y
aCueous FD
$l$ and $2l
23) rrange the folloing groups in descending order 2lt D3lt
D3lt DD and l
24) ssign or conguration to each of the folloing
structures
8112019 Chemistry Question 12sci (1)
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i)
ii)
iii)
iv)
DDlt -ED E0E
1) What are alcohols o are they classied
2) What are monohydric alcohols o are they classied
4) Write the structures of folloing alcohols
i) 1Ethylcyclohexanol ii) ex3en2ol iii)yclohex2en1ol
iv) -entane1lt4diol
v) 2lt4imethylhexane1lt3lt$triol
$) Explain the folloing
i) -ropan1ol has higher oiling point than nutane
ii) ampethanol is more solule in ater than -ropan1ol
) Write the mechanism of hydration of ethylene to ethyl alcohol
+) -ropan1ol can not e prepared y acid catalyst hydration of
propenelt then ho is propene converted into propan1ol
)5) o is propanone converted into
i) -ropan2ol ii) 2ampethyl propan2ol
17) o ill you otain utan2ol from
8112019 Chemistry Question 12sci (1)
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i) -ropanal ii) utan2one iii) ut2ene
11) o is propan1ol prepared from
i) -ropanal ii) -ropanoic acid
12) o is cyclopentanol prepared from
i) yclopentanone ii) yclopentene
14) Write the mechanism of acid catalysed dehydration of ethanol
to give ethane
1$) Write the structure of aldehyde lt caroxylic acid and ester
that yield folloing alcohol
1+) o ill you prepare
i) 2ampethylutane1ol from an al8ene
ii) cyclohexylmethanol from a Grignard reagent
iii) 1phenylethanol from acetaldehyde
1) o are folloing conversions rought aout
i) en=yl chloride to en=yl alcohol
ii) en=yl alcohol to en=oic acid
iii) 1Ethylcyclohexanol from yclohexanone
15) What are phenols o are they classied
27)21) Give the structures and (- names of isomeric phenols
represented y the molecular formula 17D
22) o is phenol prepared from
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i) hloroen=ene ii) (sopropyl en=ene iii) en=ene sulphonic
acid iv) aniline
23 ) Explain the folloing
i) -henol is more acidic than phenol
ii) onitrophenol is more acidic than ocresol
iii) pnitrophenol is less volatile than onitrophenol
24) Explain the folloing reactions of phenol
i) FoleBs reaction ii) iemer0iemann reaction
2$) ame the reagents used to convert phenol intoi) picric acid ii) 2lt4lt0riromophenol iii) en=ene iv) ophenol
sulphonic acid
2) What is the action of folloing reagents on phenol i)
romine in 2 at lo temperature
ii) ilute nitric acid at room temperature iii) oncentrated
sulphuric acid at room temperature
2+) Give distinguish test eteen phenol and ethanol
2) What are ethers o are ethers classied
25) What is metamerism Give the structure and (- name of
metamers of 2ampethoxypropane
37) Write the mechanism for acidic dehydration of ethanol
31) o is diethyl ether prepared y continuous ethericationprocess Why is the process so called
32) o ill you prepared methoxyethane from
i) l8yl halide ii) ia=omethane
33) tate the important uses of i) -henol ii) diethyl ether
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34) Write the mechanism of action of hydrogen romide on tert
utyl methyl ether
3$) Explain the folloing reactions of anisole
i) romination ii) itration iii) 6riedelrafts al8ylation iv)6riedelrafts acylation
3) Explainlt i) 0he OD group attached to aromatic ring in
phenols and ii) 0he al8oxy group in al8yl aryl ethers are ortholt
para directing and activate the aromatic ring toars electrophilic
sustitution
3+) Write the chemical eCuations for Williamson synthesis of 2
Ethoxy2methypentane starting from ethanol and 2ampethylpentan2ol
3) n organic compound ith the formula 417D3 shos
properties of ether and alcohol hen treated ith an excess of
r yields only one compound 1lt2 diromomethane Write
structural formula of ether and that of alcohol
ALDEHYDES ETONES AND CABO$YLIC
ACID
1) Write the structure and give (- names of the folloing
compounds
i) chloropropionaldehyde
ii) Rhydroxyutyraldehyde
iii) isoutyraldehyde
iv) Rmethylvaleraldehyde
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v) isopropyl methyl 8etone
vi) diisopropyl 8etone
vii) mromoen=aldehyde
viii) dien=yl 8etone
ix) divinyl 8etone
x) allyl methyl 8etone
xi) ethyl phenyl 8etone
xii) nutyrophenone
2) Write the structure of folloing compounds
i) 4ampethyl3nitroen=ophenone ii) 2ampethyl4oxopentanal iii)
3Dxopentanoic acid iv) 4chloropropiophenone v) 3
ampethoxyutanal vi) 4ydroxycyclohaxane caraldehyde
3) o ill you prepare i) propiophenone from propanenitrile ii)
4chloroen=aldehyde from 4chlorotoluene iii)
yclohaxanecaraldehyde from cyclohexylmethanol iv) 4
methoxyacetophenone from anisole v) 4methylen=aldehydefrom toluene
4) rrange the folloing compounds in the increasing order of
their oiling points
i) dimethyl etherlt ethyl alcohollt propanelt acetaldehyde
ii) acetonelt npropyl alcohollt ethyl methyl alcohol and nutane
$) What is the action of hydrogen cyanide in asic medium on i)utanone ii) 2lt4dichloroen=aldehyde
) What is the action of folloing compounds on cyclohexanone in
presence of dry hydrogen chloride
i) ethyl alcohol ii) ethylene glycol
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+) Write the structure of product in the folloing reactions
i) 322D3
ii) $2D3
) Write the structures of caronyl compounds and ammonia
derivatives that comine to give folloing imines
i)
ii)
iii)
iv)v)
vi)
5) Write the chemical eCuations for aldol condensation or
anni==aro reaction that folloing compounds undergo
i) -ropanal ii) 2ampethylpropanal iii) -entanal iv) 3
ampethylutanal v) cetophenonevi) pampethoxyen=aldehyde vii) 2ampethylcyclohaxanone viii)
chloral ix) yclopentanone
x) -henyl acetaldehyde xi) 1-henylpropan1one
17) Write the structure of the maKor product of the folloing
crossed aldol condensation
i) formaldehyde and propionaldehydeii) en=aldehyde ith acetone
11) (dentify the compounds SBlt SB and SB in the folloing
reactions and rerite the complete eCuations
i)
8112019 Chemistry Question 12sci (1)
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ii)
12)o ill you eect folloing tostep conversions
i) -ropanal into utanone ii) utanone into ut2ene iii)
en=ene into mromoacetophenone iv) ex3yne into exan
3one v) en=oic acid into mnitroen=ylalcohol
13) o ill you convert en=aldehyde into folloing compounds
ampore than one steps may e reCuired
i) en=ophenone ii) en=oic acid iii) 3-henylpropan1ol iv)hydroxyphenylacetic acid
14) Give a chemical test to distinguish eteen folloing pairs of
compounds
i) Ethanal and propanone ii) -rpopanal and propanone iii)
-entane2one and pentane3one
1$) Write the structure and (- names of folloing caroxylicacids
i) ltRdimethylutanoic acid ii) Rphenylutyric acid iii) 1038389
chloromethylvaleric acid
8112019 Chemistry Question 12sci (1)
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$) 2 172 8g of nitrogen is expanded isothermally and
reversily at 377F from 1$1$ 17$ m 2 hen the or8 done is
found to e 1+338 I 6ind the nal pressure
) sample of a gas asors 47778I of heata) if volume remains constantlt hat is
) uppose that in addition to asorption of heat y the samplelt
the surrounding does 27778I of or8 on the samplelt hat is
c) uppose that as the original sample asors heatlt it expands
against atmospheric pressure and does 778 I of or8 on its
surroundings What is
+) alculate the or8 done in each of the folloing reactions
tate hether or8 is done on or y the system
a) 0he oxidation of one mole of D2 at $7
2D2g) H D2g) 2D3g)
) decomposition of 2 moles of 4D3 at 177
4D3s) 2Dg) H 22Dg)
) 0he enthalpy change for the reaction
24g) H 2g) 2g) is 27I hen 177m of ethylene and
177m of 2 react at 1atm pressure alculate the pressure
volume or8 and
5) alculate standard enthalpy of the reaction
6e2D3s) H 3Dg) 26es) H 3D2g) from the folloing data
f 76e2D3)A2428Imol1ltf 7D)A117$8Imol1lt
f 7D2)A353$8Imol1
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8112019 Chemistry Question 12sci (1)
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Electro chemitry
Theory
1ene the terms resistivitylt conductivity and molar
conductivity Give its ( units
2Explain the terms conductivity and molar conductivity o are
they interrelated
3Why does conductivity of s solution decrease on dilution of a
solution
4o does molar conductivity of an electrolyte vary ith
concentration
$o does the variation in molar conductivity of an electrolyte
ith concentration diers for strong and ea8 electrolytes
Explain the dierent ehaviour of strong and ea8 electrolytes
toards the variation of conductivity ith concentration
+tate and explain Fohlrausch la of independent migration of
ions o it is useful to determine the molar conductivity of ea8
electrolytes at =ero concentration
o is the molar conductivity of strong electrolytes at =ero
concentration determined y graphical method Why is this
method not useful for ea8 electrolytes
5What is cell constant What is its unit o is it determined
17ene anode and cathode
11 Why is cathode in electrolytic cell considered to e negative
and anode positive
12 -redict the half cell reactions that occur hen fused Fl is
electroly=ed in a cell ith inert electrodes What is the overall cell
reaction
8112019 Chemistry Question 12sci (1)
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13 tate 6aradayBs las of electrolysis
14o ill you calculate the numer of moles of electrons
actually passed and mass of the sustance produced during
electrolysis of a salt solution using reaction stoichiometry1$o many electrons ill have a total charge of 1 coulom
1 o many faradayBs ould e reCuired to plate out 177 mole
of free metal from the folloing cations
a) ampg2H
) r3H
c) -2H
d) uH
1+ ene coulom and faraday
1 escrie the electrolysis of molten al using inert
electrodes
15 What is the dierence eteen electrolytic cell and voltaic
cell
27 Why is anode in galvanic cell considered to e negative and
cathode positive electrode
21 8etch the cell for the electrolysis of molten al (ndicate
cathodelt anode and their signs ho the Jo of electrons and
ions
22 What is salt ridge What are its functions in galvanic cell
23 What are the conventions used to rite cell diagramcell
formula)
24 escrie the construction of aniel cell Write electrode half
reactions and net cell reaction in aniel cell
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2$ escrie the folloing types of electrodes giving one
examplelt ith reference to formulationlt electrode reaction and
ernst eCuation for electrode potential
a) metalsparingly salt electrode) gas electrode
2 What is redox electrode Give one example ith formulationlt
electrode reaction and ernst eCuation for electrode potential
2+ ene the terms oxidation potentiallt reduction potential and
cell potential
2 What conditions are reCuired for a cell potential to e calledstandard cell potential
25 6ormulate a cell for each of the folloing electrode reactions
a) n2H aC) H 2gl s) L n4H aC) H 2gs) H2l aC)
) ampg s) H r2l) L ampg2H aC) H 2r aC)
37 6ormulate a cell from the folloing electrode reactions
a) l2g) H 2e L 2l aC)
) 2( aC) L (2s) H 2e
31 What are standard electrode potential and standard emf of
the galvanic cell
32 Write ernst eCuation and explain the terms involved in it
What part of the eCuation represents the correction factor for
nonstandard state conditions
33 Write ernst eCuation for the folloing reactions
a) rs) H 36e3H aC) L r3H aC) H 36e2H aC)
) l3H aC) H 3e L l s)
8112019 Chemistry Question 12sci (1)
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34 onsider the folloing E7 values and half reactions
(2s) H 2e L 2( aC) E7A7$3$M
u2H aC) H 2e L u s) E7A733+M
d2H aC) H 2e L ds) E7A77473
a) Which of the metals or nonmetals or ions is the strongest
oxidi=ing agent and hich is the strongest reducing agent
) 0he half reactions can e used to construct three galvanic
cells Which ill have the highest cell potential
3$ -redict hether
a) gH can oxidi=e - to -2H under standard state condition
) E7gA7+55M and E7
-A712M
3 -redict hether the folloing reactions occur under standard
state conditions
a) Dxidation of gs) y l2g) E7gA7Mlt E7
l2A13M
) eduction of 6e
3H
to 6e
2H
y us) E
7
6e3Hlt 6e2H A 7++MltE7uA14M
3+ 8etch and descrie the operation of
a) dry cell
) 2D2 fuel cell
3 What are the advantages and disadvantages of fuel cells
35 8etch lead storage cell
47 Write electrode reaction and overall cell reaction during the
operation of lead storage cell
41 Write electrode reaction and overall cell reaction hen lead
accumulator ehaves as an electrolytic cell
8112019 Chemistry Question 12sci (1)
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42 o can ernst eCuation e used to sho that electrode
potential is eCual to the standard electrode potential y putting
approximate values in ernst eCuation se u2HNd half cell for
illustration
43 o are G7lt E7cell and eCuilirium constant related for a
particular reaction
44 Why is eCuilirium constant related to E7cell and not Ecell
4$ G7 for a redox reaction depends on the numer of electrons
transferred Explain
4 o does the eCuiliriumlt G7An6E7 explain that an
electrical potential is an intensive property
4+ Write shorthand notation for the cell for each of the folloing
reactions
a) u2H aC) H 2gs) H 2r L u s) H 2gr s)
) n2H aC) is oxidi=ed y r2 l)
4 rrange the folloing reducing agents in order of increasing
strength under standard state conditions 0he standard potentialsfor the reduction half reactions are given
gH aC) 7M)lt l3H aC) 1M)lt 62g) 2+M)lt l2g) 13M)lt
(2s) 7$4M)lt d2H aC) 74M)
45 rrange the folloing oxidi=ing agents in order of increasing
strength under standard state conditions 0he standard potentials
for the reduction half reactions are given
ls) 1M)lt l aC) 13M)lt us) 734M)lt 6es)744M)lt r
aC) 175M)lt is) 72M)
$7 Which species in each of the folloing pairs is etter oxidi=ing
agent under standard state conditions standard potential are
given) Give reasons for your anser
8112019 Chemistry Question 12sci (1)
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a) r2l) 175M) or u3H 14M)
) H aC) or gH aC) 7M)
c) -2H aC) 713M) or o2H 72M)
d) l2 g) 13M) or r3H 7+4M)
$1 Which species in each of the folloing pairs is etter reducing
agent under standard conditions E7 values are given Give
reasons for your anser
a) Fs) 2353M) or ampgs) 23M)
) o2H aC) 11M) or (n s) 714M)
c) e3H aC) 11M) or 0i2H73+M)
d) gl) 7M) or is) 723M)
PROBLEMS
1 conductivity cell lled ith 771amp Fl given at 2$o the
resistance of 74ohms 0he conductivity of Fl at 2$
o
is 7777
CHEMISTRY
d f O DF EEampE0
1) What are dloc8 elements
8112019 Chemistry Question 12sci (1)
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2) What are floc8 elements
3) Explain the meaning of
i) 0ransition series ii) (nner transition element
4) Explain the position of the folloing in periodic tale
i) dloc8 elements ii) anthanoids iii) ctinoids
$) Explain the oxidation state of 1st ro elements of transition
series
) Explain the oxidation states of lanthanoids and actinoids
+) Why do lanthanoids form coloured compounds ) Explainlt most of the transition metal compounds are
remar8aly coloured
5) Why chromium has electronic conguration 3d$ 4s1 and not 3d4
4s2
17) Why does copper sho anormal electronic conguration
11) Explainlt the trends in atomic and ionic si=es of lanthanoidsand also of 1st ro elements of transition series
12) What are actinoids
13) What are transuranic elements Write their name
14) Why transition elements sho tendency to form large numer
of complexes
1$) Explain the compounds of copper ((() are coloured ut thoseof =inc are colourless
1) o is potassium dichromate prepared from chrome ion
1+) Write the preparationlt properties and use of potassium
permanganate
8112019 Chemistry Question 12sci (1)
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1) Explainlt hy -t(M) complexes are generally octahedral hile
-t(() complexes are sCuare planar
15) ierentiate eteen lanthanoids and actinoids
27) What are chemical tins Give examples
21) Explain hy Gd3H is colourless
COORDINATION COMPOUNDS
1) What is the dierence eteen doule salt and coordinationcompounds
2) Explainlt hy 6e4)2 D4)22D) is a salt ut F 4P6e)Q is a
complex compound
3) Write the formula of the folloing complexes
i) alcium hexa cyano ferrate (()
ii) iammine dichloro platinum
iii) is ethylene diammine) dichloro iridium ((() ion
iv) -entamine caronato chromium ((() D(E
v) 0risethylene diammine ) coalt((() sulphate
vi) iamine ethylene diammine nic8el (() acetate
4) Write the rules hich are applied hile riting the formulas of
coordination compounds
$) ene the terms
i) entral metal atomgtion
ii) igand
8112019 Chemistry Question 12sci (1)
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iii) oordination compound
iv) oordination sphere
v) oordination numer
vi) oordination polyhedral
vii) omoleptic and heteroleptic complexes
viii) harge on the complexes
ix) oordination entity
) Write (- name of the folloing complexes
i) Pr2D)4 l2QD3
ii) P-ten)l4Q
iii) F 2Pi)4Q
iv) sP6el4Q
v) rl3-y)3
vi) F 3Po2D4)3Q
vii) Por2en)2Q
viii) P-tl4Q2
ix) Po2D))en)2Q2H
x) F 3Pl2D4)3Q
+) Explain the importance of principles of additive nomenclature
) (dentify the folloing ions y a simple test forming complex
compound
i) u2H ii) i2H iii) 6e3H iv) o2H
8112019 Chemistry Question 12sci (1)
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5) Dn the asis of WernerBs theory explainlt hy coalt amine
complexlt ol343 hen treated ith gD3 solution
precipitates only one ion even though there are three ions
17) alculate the eective atomic numer E) of the centralmetal atom in the folloing compounds
i) F 3P6e)Q ii) rD)
11) Write the postulates of WernerBs theory
12) Explain the onding in ol333 and ol3$3
13) Explain stereoisomerism in metal complexes ith coordination
numer 4 and 14) Why the tetrahedral complexes do not exhiit geometrical
isomerism
1$) ra cis and trans geometrical isomers of
i) dichlororomo iodo palladium (() ion
ii) P-t(()3)2l2Q
iii) Po((()3)l3Q
iv) Po((()3)42D)lQ2H
1) ra all possile geometrical isomers of P-t(M)
3)2-y)2l2Q2H ion
1+) Write oxidation statelt coordination numer and electronic
conguration of the metal atom in the folloing complexes
i) rl3-y)3 ii) F 4Pampn)Q
1) lassify the folloing ligands into monodentatelt polydentate
and amidentate
i) 3 ii) iii) iv) v) D2 vi) ethylene diammine
vii) oxalate
8112019 Chemistry Question 12sci (1)
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viii) triaminotriethylamine
15) ol3$32D is a pin8 solidlt the solution of this salt is also
pin8 and formed 3mol of gl ith silver nitrate solution Dn
heating pin8 solidlt it loses one ater molecule and forms purplesolid having same ratio of o3l as that of pin8 solid 0he
purple solid hen dissolved in ater and treated ith forms 1 mol
of gl ra the structure and name of the pin8 and purple
solids
27) ame the octahedral complex ions
i) Po2D4) en)2QH ii) transPr)4 3)2Q
21) ra the structures of the folloing complexes
i) Pol4Q2 ii) Pampn3)Q2H iii) P-tlQ iv) iD)4 v) Pi)4Q2
22) (n an octahedral crystal eldlt dra the gure to sho splitting
of dorital
23) What are ea8 eld and strong eld ligands What is spectro
chemical series
24) Pi)4Q2 is diamagnetic hile Pr3)Q3H is paramagnetltexplain
2$) Dn the asis of valence ond theory explain the nature of
onding in the folloing complexes
i) Po6Q3 ii) Po2D4)3Q3
2) lue coloured copper sulphate solution gave folloing
experimental results Explain the same
i) With aCueous potassium chloride it gave right green solution
ii) With aCueous potassium Juoride it gave a green precipitate
2+) ra the structures of optically active isomers of Poen)3Q3H
8112019 Chemistry Question 12sci (1)
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2) ra the geometrical and optical isomers of
i) Pol2en)2QH ii) Polen)23)Q2H
25) What is lin8age isomerism Explain ith an example
37) What are hydrate isomers Explain ith examples
31) Explain the structure of
i) upraammonium sulphate ii) Po3)Q3H
32) What are the limitations of valence ond theory
33) Explain the magnetic properties of coordination compounds
34) Write the salient features of crystal eld theory What are itslimitations
3$) Explain the octahedral geometry of complexes using crystal
eld theory
3) Write a note on colours in coordination compounds
3+) Explain the factors aecting the staility of coordination
compound3) Write rief the applications of coordination compounds
HALOGEN DERIVATIVES O ALANES AND ARENES
1) What are al8yl halides o are they classied
2) Write (- names of the folloing compounds
i)
ii) 2Al
8112019 Chemistry Question 12sci (1)
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iii)
iv)
v)
vi) secutyl chloride
vii) neopentyl romide
viii) tutyl iodide
ix) isopropyl romide
3) o is ethyl romide prepared from
i) Ethyl alcohol ii) ethane iii) ethane
4)Write the preparation of isopropyl chloride using the folloing
reagents
i) -l3 ii) -l$ iii) l2 iv) l v) Dl2
$) o is group replaced y folloing functional rroups
i) OD ii) O iii) O iv) O2
) Write a note on
i) andmeyerBs reaction ii) Wurt= reaction iii) 6in8elstein reaction
iv) 6ittig reaction v) 6riedel raft reaction
+) (dentify and in the folloing
8112019 Chemistry Question 12sci (1)
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) Give the structures of the folloing compounds
i) 3romo2methyl pentane ii) 2romo3ethyl hexane iii) 1
holo utane
iv) pichloroen=ene v) 1lt1lt10richloroethane
5) student has performed an experiment in the laoratory e
mixed ater ith hexane and found to layers separated econd
time he mixed chloroform ith ater and he again found to
layers in the test tue Explain hich ill e upper layer and
hich one ill e loer layer in oth the experiments
17) onvert 1hloroutane into the folloing compounds
i) utane1ol ii) 1(odoutane iii) 3222 iv)
11) 6or each pair of compoundslt state hich compound is etter
2 sustrate
i) 2romoutanelt isopropyl romide ii) 1(odo2lt2dimethyl
propane or isopropyl iodide
12) hoose the memer that ill react faster from the folloing
pairs y 1 mechanism
13) -redict the expected product of sustitution reaction
i) isoutyl chloride mH sodium ethoxide
ii) nutyl chloride H sodium
iii) 1hloro propane H aC potassium hydroxide
iv) aniline H aD2gt l
14) Write the products
i) $22A2 H r L
ii) $A2 H r
8112019 Chemistry Question 12sci (1)
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iii)
iv)
v)
1$) (dentify the chiral and achiral molecules
i)
ii)
iii)
1) iscuss 2 mechanism of methyl romide using aCueous
FD ra energy prole diagram1+) Write the mechanism of the reaction hen tutyl chloride is
treated ith aCueous FD ith energy prole diagram
1) ierentiate eteen 1 and 2 mechanism
15) Explain the nature of ond in
i) 322 ii)
27) What are uses of
i) 0 ii) (odoform iii) hloroform iv) aron tetrachloride
21) l8yl halides are polar and miscile ith aterlt explain
22) Which one of the folloing is more easily hydrolysed y
aCueous FD
$l$ and $2l
23) rrange the folloing groups in descending order 2lt D3lt
D3lt DD and l
24) ssign or conguration to each of the folloing
structures
8112019 Chemistry Question 12sci (1)
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i)
ii)
iii)
iv)
DDlt -ED E0E
1) What are alcohols o are they classied
2) What are monohydric alcohols o are they classied
4) Write the structures of folloing alcohols
i) 1Ethylcyclohexanol ii) ex3en2ol iii)yclohex2en1ol
iv) -entane1lt4diol
v) 2lt4imethylhexane1lt3lt$triol
$) Explain the folloing
i) -ropan1ol has higher oiling point than nutane
ii) ampethanol is more solule in ater than -ropan1ol
) Write the mechanism of hydration of ethylene to ethyl alcohol
+) -ropan1ol can not e prepared y acid catalyst hydration of
propenelt then ho is propene converted into propan1ol
)5) o is propanone converted into
i) -ropan2ol ii) 2ampethyl propan2ol
17) o ill you otain utan2ol from
8112019 Chemistry Question 12sci (1)
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i) -ropanal ii) utan2one iii) ut2ene
11) o is propan1ol prepared from
i) -ropanal ii) -ropanoic acid
12) o is cyclopentanol prepared from
i) yclopentanone ii) yclopentene
14) Write the mechanism of acid catalysed dehydration of ethanol
to give ethane
1$) Write the structure of aldehyde lt caroxylic acid and ester
that yield folloing alcohol
1+) o ill you prepare
i) 2ampethylutane1ol from an al8ene
ii) cyclohexylmethanol from a Grignard reagent
iii) 1phenylethanol from acetaldehyde
1) o are folloing conversions rought aout
i) en=yl chloride to en=yl alcohol
ii) en=yl alcohol to en=oic acid
iii) 1Ethylcyclohexanol from yclohexanone
15) What are phenols o are they classied
27)21) Give the structures and (- names of isomeric phenols
represented y the molecular formula 17D
22) o is phenol prepared from
8112019 Chemistry Question 12sci (1)
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i) hloroen=ene ii) (sopropyl en=ene iii) en=ene sulphonic
acid iv) aniline
23 ) Explain the folloing
i) -henol is more acidic than phenol
ii) onitrophenol is more acidic than ocresol
iii) pnitrophenol is less volatile than onitrophenol
24) Explain the folloing reactions of phenol
i) FoleBs reaction ii) iemer0iemann reaction
2$) ame the reagents used to convert phenol intoi) picric acid ii) 2lt4lt0riromophenol iii) en=ene iv) ophenol
sulphonic acid
2) What is the action of folloing reagents on phenol i)
romine in 2 at lo temperature
ii) ilute nitric acid at room temperature iii) oncentrated
sulphuric acid at room temperature
2+) Give distinguish test eteen phenol and ethanol
2) What are ethers o are ethers classied
25) What is metamerism Give the structure and (- name of
metamers of 2ampethoxypropane
37) Write the mechanism for acidic dehydration of ethanol
31) o is diethyl ether prepared y continuous ethericationprocess Why is the process so called
32) o ill you prepared methoxyethane from
i) l8yl halide ii) ia=omethane
33) tate the important uses of i) -henol ii) diethyl ether
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34) Write the mechanism of action of hydrogen romide on tert
utyl methyl ether
3$) Explain the folloing reactions of anisole
i) romination ii) itration iii) 6riedelrafts al8ylation iv)6riedelrafts acylation
3) Explainlt i) 0he OD group attached to aromatic ring in
phenols and ii) 0he al8oxy group in al8yl aryl ethers are ortholt
para directing and activate the aromatic ring toars electrophilic
sustitution
3+) Write the chemical eCuations for Williamson synthesis of 2
Ethoxy2methypentane starting from ethanol and 2ampethylpentan2ol
3) n organic compound ith the formula 417D3 shos
properties of ether and alcohol hen treated ith an excess of
r yields only one compound 1lt2 diromomethane Write
structural formula of ether and that of alcohol
ALDEHYDES ETONES AND CABO$YLIC
ACID
1) Write the structure and give (- names of the folloing
compounds
i) chloropropionaldehyde
ii) Rhydroxyutyraldehyde
iii) isoutyraldehyde
iv) Rmethylvaleraldehyde
8112019 Chemistry Question 12sci (1)
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v) isopropyl methyl 8etone
vi) diisopropyl 8etone
vii) mromoen=aldehyde
viii) dien=yl 8etone
ix) divinyl 8etone
x) allyl methyl 8etone
xi) ethyl phenyl 8etone
xii) nutyrophenone
2) Write the structure of folloing compounds
i) 4ampethyl3nitroen=ophenone ii) 2ampethyl4oxopentanal iii)
3Dxopentanoic acid iv) 4chloropropiophenone v) 3
ampethoxyutanal vi) 4ydroxycyclohaxane caraldehyde
3) o ill you prepare i) propiophenone from propanenitrile ii)
4chloroen=aldehyde from 4chlorotoluene iii)
yclohaxanecaraldehyde from cyclohexylmethanol iv) 4
methoxyacetophenone from anisole v) 4methylen=aldehydefrom toluene
4) rrange the folloing compounds in the increasing order of
their oiling points
i) dimethyl etherlt ethyl alcohollt propanelt acetaldehyde
ii) acetonelt npropyl alcohollt ethyl methyl alcohol and nutane
$) What is the action of hydrogen cyanide in asic medium on i)utanone ii) 2lt4dichloroen=aldehyde
) What is the action of folloing compounds on cyclohexanone in
presence of dry hydrogen chloride
i) ethyl alcohol ii) ethylene glycol
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+) Write the structure of product in the folloing reactions
i) 322D3
ii) $2D3
) Write the structures of caronyl compounds and ammonia
derivatives that comine to give folloing imines
i)
ii)
iii)
iv)v)
vi)
5) Write the chemical eCuations for aldol condensation or
anni==aro reaction that folloing compounds undergo
i) -ropanal ii) 2ampethylpropanal iii) -entanal iv) 3
ampethylutanal v) cetophenonevi) pampethoxyen=aldehyde vii) 2ampethylcyclohaxanone viii)
chloral ix) yclopentanone
x) -henyl acetaldehyde xi) 1-henylpropan1one
17) Write the structure of the maKor product of the folloing
crossed aldol condensation
i) formaldehyde and propionaldehydeii) en=aldehyde ith acetone
11) (dentify the compounds SBlt SB and SB in the folloing
reactions and rerite the complete eCuations
i)
8112019 Chemistry Question 12sci (1)
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ii)
12)o ill you eect folloing tostep conversions
i) -ropanal into utanone ii) utanone into ut2ene iii)
en=ene into mromoacetophenone iv) ex3yne into exan
3one v) en=oic acid into mnitroen=ylalcohol
13) o ill you convert en=aldehyde into folloing compounds
ampore than one steps may e reCuired
i) en=ophenone ii) en=oic acid iii) 3-henylpropan1ol iv)hydroxyphenylacetic acid
14) Give a chemical test to distinguish eteen folloing pairs of
compounds
i) Ethanal and propanone ii) -rpopanal and propanone iii)
-entane2one and pentane3one
1$) Write the structure and (- names of folloing caroxylicacids
i) ltRdimethylutanoic acid ii) Rphenylutyric acid iii) 1038389
chloromethylvaleric acid
8112019 Chemistry Question 12sci (1)
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8112019 Chemistry Question 12sci (1)
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Electro chemitry
Theory
1ene the terms resistivitylt conductivity and molar
conductivity Give its ( units
2Explain the terms conductivity and molar conductivity o are
they interrelated
3Why does conductivity of s solution decrease on dilution of a
solution
4o does molar conductivity of an electrolyte vary ith
concentration
$o does the variation in molar conductivity of an electrolyte
ith concentration diers for strong and ea8 electrolytes
Explain the dierent ehaviour of strong and ea8 electrolytes
toards the variation of conductivity ith concentration
+tate and explain Fohlrausch la of independent migration of
ions o it is useful to determine the molar conductivity of ea8
electrolytes at =ero concentration
o is the molar conductivity of strong electrolytes at =ero
concentration determined y graphical method Why is this
method not useful for ea8 electrolytes
5What is cell constant What is its unit o is it determined
17ene anode and cathode
11 Why is cathode in electrolytic cell considered to e negative
and anode positive
12 -redict the half cell reactions that occur hen fused Fl is
electroly=ed in a cell ith inert electrodes What is the overall cell
reaction
8112019 Chemistry Question 12sci (1)
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13 tate 6aradayBs las of electrolysis
14o ill you calculate the numer of moles of electrons
actually passed and mass of the sustance produced during
electrolysis of a salt solution using reaction stoichiometry1$o many electrons ill have a total charge of 1 coulom
1 o many faradayBs ould e reCuired to plate out 177 mole
of free metal from the folloing cations
a) ampg2H
) r3H
c) -2H
d) uH
1+ ene coulom and faraday
1 escrie the electrolysis of molten al using inert
electrodes
15 What is the dierence eteen electrolytic cell and voltaic
cell
27 Why is anode in galvanic cell considered to e negative and
cathode positive electrode
21 8etch the cell for the electrolysis of molten al (ndicate
cathodelt anode and their signs ho the Jo of electrons and
ions
22 What is salt ridge What are its functions in galvanic cell
23 What are the conventions used to rite cell diagramcell
formula)
24 escrie the construction of aniel cell Write electrode half
reactions and net cell reaction in aniel cell
8112019 Chemistry Question 12sci (1)
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2$ escrie the folloing types of electrodes giving one
examplelt ith reference to formulationlt electrode reaction and
ernst eCuation for electrode potential
a) metalsparingly salt electrode) gas electrode
2 What is redox electrode Give one example ith formulationlt
electrode reaction and ernst eCuation for electrode potential
2+ ene the terms oxidation potentiallt reduction potential and
cell potential
2 What conditions are reCuired for a cell potential to e calledstandard cell potential
25 6ormulate a cell for each of the folloing electrode reactions
a) n2H aC) H 2gl s) L n4H aC) H 2gs) H2l aC)
) ampg s) H r2l) L ampg2H aC) H 2r aC)
37 6ormulate a cell from the folloing electrode reactions
a) l2g) H 2e L 2l aC)
) 2( aC) L (2s) H 2e
31 What are standard electrode potential and standard emf of
the galvanic cell
32 Write ernst eCuation and explain the terms involved in it
What part of the eCuation represents the correction factor for
nonstandard state conditions
33 Write ernst eCuation for the folloing reactions
a) rs) H 36e3H aC) L r3H aC) H 36e2H aC)
) l3H aC) H 3e L l s)
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34 onsider the folloing E7 values and half reactions
(2s) H 2e L 2( aC) E7A7$3$M
u2H aC) H 2e L u s) E7A733+M
d2H aC) H 2e L ds) E7A77473
a) Which of the metals or nonmetals or ions is the strongest
oxidi=ing agent and hich is the strongest reducing agent
) 0he half reactions can e used to construct three galvanic
cells Which ill have the highest cell potential
3$ -redict hether
a) gH can oxidi=e - to -2H under standard state condition
) E7gA7+55M and E7
-A712M
3 -redict hether the folloing reactions occur under standard
state conditions
a) Dxidation of gs) y l2g) E7gA7Mlt E7
l2A13M
) eduction of 6e
3H
to 6e
2H
y us) E
7
6e3Hlt 6e2H A 7++MltE7uA14M
3+ 8etch and descrie the operation of
a) dry cell
) 2D2 fuel cell
3 What are the advantages and disadvantages of fuel cells
35 8etch lead storage cell
47 Write electrode reaction and overall cell reaction during the
operation of lead storage cell
41 Write electrode reaction and overall cell reaction hen lead
accumulator ehaves as an electrolytic cell
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42 o can ernst eCuation e used to sho that electrode
potential is eCual to the standard electrode potential y putting
approximate values in ernst eCuation se u2HNd half cell for
illustration
43 o are G7lt E7cell and eCuilirium constant related for a
particular reaction
44 Why is eCuilirium constant related to E7cell and not Ecell
4$ G7 for a redox reaction depends on the numer of electrons
transferred Explain
4 o does the eCuiliriumlt G7An6E7 explain that an
electrical potential is an intensive property
4+ Write shorthand notation for the cell for each of the folloing
reactions
a) u2H aC) H 2gs) H 2r L u s) H 2gr s)
) n2H aC) is oxidi=ed y r2 l)
4 rrange the folloing reducing agents in order of increasing
strength under standard state conditions 0he standard potentialsfor the reduction half reactions are given
gH aC) 7M)lt l3H aC) 1M)lt 62g) 2+M)lt l2g) 13M)lt
(2s) 7$4M)lt d2H aC) 74M)
45 rrange the folloing oxidi=ing agents in order of increasing
strength under standard state conditions 0he standard potentials
for the reduction half reactions are given
ls) 1M)lt l aC) 13M)lt us) 734M)lt 6es)744M)lt r
aC) 175M)lt is) 72M)
$7 Which species in each of the folloing pairs is etter oxidi=ing
agent under standard state conditions standard potential are
given) Give reasons for your anser
8112019 Chemistry Question 12sci (1)
httpslidepdfcomreaderfullchemistry-question-12sci-1 2238
a) r2l) 175M) or u3H 14M)
) H aC) or gH aC) 7M)
c) -2H aC) 713M) or o2H 72M)
d) l2 g) 13M) or r3H 7+4M)
$1 Which species in each of the folloing pairs is etter reducing
agent under standard conditions E7 values are given Give
reasons for your anser
a) Fs) 2353M) or ampgs) 23M)
) o2H aC) 11M) or (n s) 714M)
c) e3H aC) 11M) or 0i2H73+M)
d) gl) 7M) or is) 723M)
PROBLEMS
1 conductivity cell lled ith 771amp Fl given at 2$o the
resistance of 74ohms 0he conductivity of Fl at 2$
o
is 7777
CHEMISTRY
d f O DF EEampE0
1) What are dloc8 elements
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2) What are floc8 elements
3) Explain the meaning of
i) 0ransition series ii) (nner transition element
4) Explain the position of the folloing in periodic tale
i) dloc8 elements ii) anthanoids iii) ctinoids
$) Explain the oxidation state of 1st ro elements of transition
series
) Explain the oxidation states of lanthanoids and actinoids
+) Why do lanthanoids form coloured compounds ) Explainlt most of the transition metal compounds are
remar8aly coloured
5) Why chromium has electronic conguration 3d$ 4s1 and not 3d4
4s2
17) Why does copper sho anormal electronic conguration
11) Explainlt the trends in atomic and ionic si=es of lanthanoidsand also of 1st ro elements of transition series
12) What are actinoids
13) What are transuranic elements Write their name
14) Why transition elements sho tendency to form large numer
of complexes
1$) Explain the compounds of copper ((() are coloured ut thoseof =inc are colourless
1) o is potassium dichromate prepared from chrome ion
1+) Write the preparationlt properties and use of potassium
permanganate
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1) Explainlt hy -t(M) complexes are generally octahedral hile
-t(() complexes are sCuare planar
15) ierentiate eteen lanthanoids and actinoids
27) What are chemical tins Give examples
21) Explain hy Gd3H is colourless
COORDINATION COMPOUNDS
1) What is the dierence eteen doule salt and coordinationcompounds
2) Explainlt hy 6e4)2 D4)22D) is a salt ut F 4P6e)Q is a
complex compound
3) Write the formula of the folloing complexes
i) alcium hexa cyano ferrate (()
ii) iammine dichloro platinum
iii) is ethylene diammine) dichloro iridium ((() ion
iv) -entamine caronato chromium ((() D(E
v) 0risethylene diammine ) coalt((() sulphate
vi) iamine ethylene diammine nic8el (() acetate
4) Write the rules hich are applied hile riting the formulas of
coordination compounds
$) ene the terms
i) entral metal atomgtion
ii) igand
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iii) oordination compound
iv) oordination sphere
v) oordination numer
vi) oordination polyhedral
vii) omoleptic and heteroleptic complexes
viii) harge on the complexes
ix) oordination entity
) Write (- name of the folloing complexes
i) Pr2D)4 l2QD3
ii) P-ten)l4Q
iii) F 2Pi)4Q
iv) sP6el4Q
v) rl3-y)3
vi) F 3Po2D4)3Q
vii) Por2en)2Q
viii) P-tl4Q2
ix) Po2D))en)2Q2H
x) F 3Pl2D4)3Q
+) Explain the importance of principles of additive nomenclature
) (dentify the folloing ions y a simple test forming complex
compound
i) u2H ii) i2H iii) 6e3H iv) o2H
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5) Dn the asis of WernerBs theory explainlt hy coalt amine
complexlt ol343 hen treated ith gD3 solution
precipitates only one ion even though there are three ions
17) alculate the eective atomic numer E) of the centralmetal atom in the folloing compounds
i) F 3P6e)Q ii) rD)
11) Write the postulates of WernerBs theory
12) Explain the onding in ol333 and ol3$3
13) Explain stereoisomerism in metal complexes ith coordination
numer 4 and 14) Why the tetrahedral complexes do not exhiit geometrical
isomerism
1$) ra cis and trans geometrical isomers of
i) dichlororomo iodo palladium (() ion
ii) P-t(()3)2l2Q
iii) Po((()3)l3Q
iv) Po((()3)42D)lQ2H
1) ra all possile geometrical isomers of P-t(M)
3)2-y)2l2Q2H ion
1+) Write oxidation statelt coordination numer and electronic
conguration of the metal atom in the folloing complexes
i) rl3-y)3 ii) F 4Pampn)Q
1) lassify the folloing ligands into monodentatelt polydentate
and amidentate
i) 3 ii) iii) iv) v) D2 vi) ethylene diammine
vii) oxalate
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viii) triaminotriethylamine
15) ol3$32D is a pin8 solidlt the solution of this salt is also
pin8 and formed 3mol of gl ith silver nitrate solution Dn
heating pin8 solidlt it loses one ater molecule and forms purplesolid having same ratio of o3l as that of pin8 solid 0he
purple solid hen dissolved in ater and treated ith forms 1 mol
of gl ra the structure and name of the pin8 and purple
solids
27) ame the octahedral complex ions
i) Po2D4) en)2QH ii) transPr)4 3)2Q
21) ra the structures of the folloing complexes
i) Pol4Q2 ii) Pampn3)Q2H iii) P-tlQ iv) iD)4 v) Pi)4Q2
22) (n an octahedral crystal eldlt dra the gure to sho splitting
of dorital
23) What are ea8 eld and strong eld ligands What is spectro
chemical series
24) Pi)4Q2 is diamagnetic hile Pr3)Q3H is paramagnetltexplain
2$) Dn the asis of valence ond theory explain the nature of
onding in the folloing complexes
i) Po6Q3 ii) Po2D4)3Q3
2) lue coloured copper sulphate solution gave folloing
experimental results Explain the same
i) With aCueous potassium chloride it gave right green solution
ii) With aCueous potassium Juoride it gave a green precipitate
2+) ra the structures of optically active isomers of Poen)3Q3H
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2) ra the geometrical and optical isomers of
i) Pol2en)2QH ii) Polen)23)Q2H
25) What is lin8age isomerism Explain ith an example
37) What are hydrate isomers Explain ith examples
31) Explain the structure of
i) upraammonium sulphate ii) Po3)Q3H
32) What are the limitations of valence ond theory
33) Explain the magnetic properties of coordination compounds
34) Write the salient features of crystal eld theory What are itslimitations
3$) Explain the octahedral geometry of complexes using crystal
eld theory
3) Write a note on colours in coordination compounds
3+) Explain the factors aecting the staility of coordination
compound3) Write rief the applications of coordination compounds
HALOGEN DERIVATIVES O ALANES AND ARENES
1) What are al8yl halides o are they classied
2) Write (- names of the folloing compounds
i)
ii) 2Al
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iii)
iv)
v)
vi) secutyl chloride
vii) neopentyl romide
viii) tutyl iodide
ix) isopropyl romide
3) o is ethyl romide prepared from
i) Ethyl alcohol ii) ethane iii) ethane
4)Write the preparation of isopropyl chloride using the folloing
reagents
i) -l3 ii) -l$ iii) l2 iv) l v) Dl2
$) o is group replaced y folloing functional rroups
i) OD ii) O iii) O iv) O2
) Write a note on
i) andmeyerBs reaction ii) Wurt= reaction iii) 6in8elstein reaction
iv) 6ittig reaction v) 6riedel raft reaction
+) (dentify and in the folloing
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) Give the structures of the folloing compounds
i) 3romo2methyl pentane ii) 2romo3ethyl hexane iii) 1
holo utane
iv) pichloroen=ene v) 1lt1lt10richloroethane
5) student has performed an experiment in the laoratory e
mixed ater ith hexane and found to layers separated econd
time he mixed chloroform ith ater and he again found to
layers in the test tue Explain hich ill e upper layer and
hich one ill e loer layer in oth the experiments
17) onvert 1hloroutane into the folloing compounds
i) utane1ol ii) 1(odoutane iii) 3222 iv)
11) 6or each pair of compoundslt state hich compound is etter
2 sustrate
i) 2romoutanelt isopropyl romide ii) 1(odo2lt2dimethyl
propane or isopropyl iodide
12) hoose the memer that ill react faster from the folloing
pairs y 1 mechanism
13) -redict the expected product of sustitution reaction
i) isoutyl chloride mH sodium ethoxide
ii) nutyl chloride H sodium
iii) 1hloro propane H aC potassium hydroxide
iv) aniline H aD2gt l
14) Write the products
i) $22A2 H r L
ii) $A2 H r
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iii)
iv)
v)
1$) (dentify the chiral and achiral molecules
i)
ii)
iii)
1) iscuss 2 mechanism of methyl romide using aCueous
FD ra energy prole diagram1+) Write the mechanism of the reaction hen tutyl chloride is
treated ith aCueous FD ith energy prole diagram
1) ierentiate eteen 1 and 2 mechanism
15) Explain the nature of ond in
i) 322 ii)
27) What are uses of
i) 0 ii) (odoform iii) hloroform iv) aron tetrachloride
21) l8yl halides are polar and miscile ith aterlt explain
22) Which one of the folloing is more easily hydrolysed y
aCueous FD
$l$ and $2l
23) rrange the folloing groups in descending order 2lt D3lt
D3lt DD and l
24) ssign or conguration to each of the folloing
structures
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i)
ii)
iii)
iv)
DDlt -ED E0E
1) What are alcohols o are they classied
2) What are monohydric alcohols o are they classied
4) Write the structures of folloing alcohols
i) 1Ethylcyclohexanol ii) ex3en2ol iii)yclohex2en1ol
iv) -entane1lt4diol
v) 2lt4imethylhexane1lt3lt$triol
$) Explain the folloing
i) -ropan1ol has higher oiling point than nutane
ii) ampethanol is more solule in ater than -ropan1ol
) Write the mechanism of hydration of ethylene to ethyl alcohol
+) -ropan1ol can not e prepared y acid catalyst hydration of
propenelt then ho is propene converted into propan1ol
)5) o is propanone converted into
i) -ropan2ol ii) 2ampethyl propan2ol
17) o ill you otain utan2ol from
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i) -ropanal ii) utan2one iii) ut2ene
11) o is propan1ol prepared from
i) -ropanal ii) -ropanoic acid
12) o is cyclopentanol prepared from
i) yclopentanone ii) yclopentene
14) Write the mechanism of acid catalysed dehydration of ethanol
to give ethane
1$) Write the structure of aldehyde lt caroxylic acid and ester
that yield folloing alcohol
1+) o ill you prepare
i) 2ampethylutane1ol from an al8ene
ii) cyclohexylmethanol from a Grignard reagent
iii) 1phenylethanol from acetaldehyde
1) o are folloing conversions rought aout
i) en=yl chloride to en=yl alcohol
ii) en=yl alcohol to en=oic acid
iii) 1Ethylcyclohexanol from yclohexanone
15) What are phenols o are they classied
27)21) Give the structures and (- names of isomeric phenols
represented y the molecular formula 17D
22) o is phenol prepared from
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i) hloroen=ene ii) (sopropyl en=ene iii) en=ene sulphonic
acid iv) aniline
23 ) Explain the folloing
i) -henol is more acidic than phenol
ii) onitrophenol is more acidic than ocresol
iii) pnitrophenol is less volatile than onitrophenol
24) Explain the folloing reactions of phenol
i) FoleBs reaction ii) iemer0iemann reaction
2$) ame the reagents used to convert phenol intoi) picric acid ii) 2lt4lt0riromophenol iii) en=ene iv) ophenol
sulphonic acid
2) What is the action of folloing reagents on phenol i)
romine in 2 at lo temperature
ii) ilute nitric acid at room temperature iii) oncentrated
sulphuric acid at room temperature
2+) Give distinguish test eteen phenol and ethanol
2) What are ethers o are ethers classied
25) What is metamerism Give the structure and (- name of
metamers of 2ampethoxypropane
37) Write the mechanism for acidic dehydration of ethanol
31) o is diethyl ether prepared y continuous ethericationprocess Why is the process so called
32) o ill you prepared methoxyethane from
i) l8yl halide ii) ia=omethane
33) tate the important uses of i) -henol ii) diethyl ether
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34) Write the mechanism of action of hydrogen romide on tert
utyl methyl ether
3$) Explain the folloing reactions of anisole
i) romination ii) itration iii) 6riedelrafts al8ylation iv)6riedelrafts acylation
3) Explainlt i) 0he OD group attached to aromatic ring in
phenols and ii) 0he al8oxy group in al8yl aryl ethers are ortholt
para directing and activate the aromatic ring toars electrophilic
sustitution
3+) Write the chemical eCuations for Williamson synthesis of 2
Ethoxy2methypentane starting from ethanol and 2ampethylpentan2ol
3) n organic compound ith the formula 417D3 shos
properties of ether and alcohol hen treated ith an excess of
r yields only one compound 1lt2 diromomethane Write
structural formula of ether and that of alcohol
ALDEHYDES ETONES AND CABO$YLIC
ACID
1) Write the structure and give (- names of the folloing
compounds
i) chloropropionaldehyde
ii) Rhydroxyutyraldehyde
iii) isoutyraldehyde
iv) Rmethylvaleraldehyde
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v) isopropyl methyl 8etone
vi) diisopropyl 8etone
vii) mromoen=aldehyde
viii) dien=yl 8etone
ix) divinyl 8etone
x) allyl methyl 8etone
xi) ethyl phenyl 8etone
xii) nutyrophenone
2) Write the structure of folloing compounds
i) 4ampethyl3nitroen=ophenone ii) 2ampethyl4oxopentanal iii)
3Dxopentanoic acid iv) 4chloropropiophenone v) 3
ampethoxyutanal vi) 4ydroxycyclohaxane caraldehyde
3) o ill you prepare i) propiophenone from propanenitrile ii)
4chloroen=aldehyde from 4chlorotoluene iii)
yclohaxanecaraldehyde from cyclohexylmethanol iv) 4
methoxyacetophenone from anisole v) 4methylen=aldehydefrom toluene
4) rrange the folloing compounds in the increasing order of
their oiling points
i) dimethyl etherlt ethyl alcohollt propanelt acetaldehyde
ii) acetonelt npropyl alcohollt ethyl methyl alcohol and nutane
$) What is the action of hydrogen cyanide in asic medium on i)utanone ii) 2lt4dichloroen=aldehyde
) What is the action of folloing compounds on cyclohexanone in
presence of dry hydrogen chloride
i) ethyl alcohol ii) ethylene glycol
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+) Write the structure of product in the folloing reactions
i) 322D3
ii) $2D3
) Write the structures of caronyl compounds and ammonia
derivatives that comine to give folloing imines
i)
ii)
iii)
iv)v)
vi)
5) Write the chemical eCuations for aldol condensation or
anni==aro reaction that folloing compounds undergo
i) -ropanal ii) 2ampethylpropanal iii) -entanal iv) 3
ampethylutanal v) cetophenonevi) pampethoxyen=aldehyde vii) 2ampethylcyclohaxanone viii)
chloral ix) yclopentanone
x) -henyl acetaldehyde xi) 1-henylpropan1one
17) Write the structure of the maKor product of the folloing
crossed aldol condensation
i) formaldehyde and propionaldehydeii) en=aldehyde ith acetone
11) (dentify the compounds SBlt SB and SB in the folloing
reactions and rerite the complete eCuations
i)
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ii)
12)o ill you eect folloing tostep conversions
i) -ropanal into utanone ii) utanone into ut2ene iii)
en=ene into mromoacetophenone iv) ex3yne into exan
3one v) en=oic acid into mnitroen=ylalcohol
13) o ill you convert en=aldehyde into folloing compounds
ampore than one steps may e reCuired
i) en=ophenone ii) en=oic acid iii) 3-henylpropan1ol iv)hydroxyphenylacetic acid
14) Give a chemical test to distinguish eteen folloing pairs of
compounds
i) Ethanal and propanone ii) -rpopanal and propanone iii)
-entane2one and pentane3one
1$) Write the structure and (- names of folloing caroxylicacids
i) ltRdimethylutanoic acid ii) Rphenylutyric acid iii) 1038389
chloromethylvaleric acid
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Electro chemitry
Theory
1ene the terms resistivitylt conductivity and molar
conductivity Give its ( units
2Explain the terms conductivity and molar conductivity o are
they interrelated
3Why does conductivity of s solution decrease on dilution of a
solution
4o does molar conductivity of an electrolyte vary ith
concentration
$o does the variation in molar conductivity of an electrolyte
ith concentration diers for strong and ea8 electrolytes
Explain the dierent ehaviour of strong and ea8 electrolytes
toards the variation of conductivity ith concentration
+tate and explain Fohlrausch la of independent migration of
ions o it is useful to determine the molar conductivity of ea8
electrolytes at =ero concentration
o is the molar conductivity of strong electrolytes at =ero
concentration determined y graphical method Why is this
method not useful for ea8 electrolytes
5What is cell constant What is its unit o is it determined
17ene anode and cathode
11 Why is cathode in electrolytic cell considered to e negative
and anode positive
12 -redict the half cell reactions that occur hen fused Fl is
electroly=ed in a cell ith inert electrodes What is the overall cell
reaction
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13 tate 6aradayBs las of electrolysis
14o ill you calculate the numer of moles of electrons
actually passed and mass of the sustance produced during
electrolysis of a salt solution using reaction stoichiometry1$o many electrons ill have a total charge of 1 coulom
1 o many faradayBs ould e reCuired to plate out 177 mole
of free metal from the folloing cations
a) ampg2H
) r3H
c) -2H
d) uH
1+ ene coulom and faraday
1 escrie the electrolysis of molten al using inert
electrodes
15 What is the dierence eteen electrolytic cell and voltaic
cell
27 Why is anode in galvanic cell considered to e negative and
cathode positive electrode
21 8etch the cell for the electrolysis of molten al (ndicate
cathodelt anode and their signs ho the Jo of electrons and
ions
22 What is salt ridge What are its functions in galvanic cell
23 What are the conventions used to rite cell diagramcell
formula)
24 escrie the construction of aniel cell Write electrode half
reactions and net cell reaction in aniel cell
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2$ escrie the folloing types of electrodes giving one
examplelt ith reference to formulationlt electrode reaction and
ernst eCuation for electrode potential
a) metalsparingly salt electrode) gas electrode
2 What is redox electrode Give one example ith formulationlt
electrode reaction and ernst eCuation for electrode potential
2+ ene the terms oxidation potentiallt reduction potential and
cell potential
2 What conditions are reCuired for a cell potential to e calledstandard cell potential
25 6ormulate a cell for each of the folloing electrode reactions
a) n2H aC) H 2gl s) L n4H aC) H 2gs) H2l aC)
) ampg s) H r2l) L ampg2H aC) H 2r aC)
37 6ormulate a cell from the folloing electrode reactions
a) l2g) H 2e L 2l aC)
) 2( aC) L (2s) H 2e
31 What are standard electrode potential and standard emf of
the galvanic cell
32 Write ernst eCuation and explain the terms involved in it
What part of the eCuation represents the correction factor for
nonstandard state conditions
33 Write ernst eCuation for the folloing reactions
a) rs) H 36e3H aC) L r3H aC) H 36e2H aC)
) l3H aC) H 3e L l s)
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34 onsider the folloing E7 values and half reactions
(2s) H 2e L 2( aC) E7A7$3$M
u2H aC) H 2e L u s) E7A733+M
d2H aC) H 2e L ds) E7A77473
a) Which of the metals or nonmetals or ions is the strongest
oxidi=ing agent and hich is the strongest reducing agent
) 0he half reactions can e used to construct three galvanic
cells Which ill have the highest cell potential
3$ -redict hether
a) gH can oxidi=e - to -2H under standard state condition
) E7gA7+55M and E7
-A712M
3 -redict hether the folloing reactions occur under standard
state conditions
a) Dxidation of gs) y l2g) E7gA7Mlt E7
l2A13M
) eduction of 6e
3H
to 6e
2H
y us) E
7
6e3Hlt 6e2H A 7++MltE7uA14M
3+ 8etch and descrie the operation of
a) dry cell
) 2D2 fuel cell
3 What are the advantages and disadvantages of fuel cells
35 8etch lead storage cell
47 Write electrode reaction and overall cell reaction during the
operation of lead storage cell
41 Write electrode reaction and overall cell reaction hen lead
accumulator ehaves as an electrolytic cell
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42 o can ernst eCuation e used to sho that electrode
potential is eCual to the standard electrode potential y putting
approximate values in ernst eCuation se u2HNd half cell for
illustration
43 o are G7lt E7cell and eCuilirium constant related for a
particular reaction
44 Why is eCuilirium constant related to E7cell and not Ecell
4$ G7 for a redox reaction depends on the numer of electrons
transferred Explain
4 o does the eCuiliriumlt G7An6E7 explain that an
electrical potential is an intensive property
4+ Write shorthand notation for the cell for each of the folloing
reactions
a) u2H aC) H 2gs) H 2r L u s) H 2gr s)
) n2H aC) is oxidi=ed y r2 l)
4 rrange the folloing reducing agents in order of increasing
strength under standard state conditions 0he standard potentialsfor the reduction half reactions are given
gH aC) 7M)lt l3H aC) 1M)lt 62g) 2+M)lt l2g) 13M)lt
(2s) 7$4M)lt d2H aC) 74M)
45 rrange the folloing oxidi=ing agents in order of increasing
strength under standard state conditions 0he standard potentials
for the reduction half reactions are given
ls) 1M)lt l aC) 13M)lt us) 734M)lt 6es)744M)lt r
aC) 175M)lt is) 72M)
$7 Which species in each of the folloing pairs is etter oxidi=ing
agent under standard state conditions standard potential are
given) Give reasons for your anser
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a) r2l) 175M) or u3H 14M)
) H aC) or gH aC) 7M)
c) -2H aC) 713M) or o2H 72M)
d) l2 g) 13M) or r3H 7+4M)
$1 Which species in each of the folloing pairs is etter reducing
agent under standard conditions E7 values are given Give
reasons for your anser
a) Fs) 2353M) or ampgs) 23M)
) o2H aC) 11M) or (n s) 714M)
c) e3H aC) 11M) or 0i2H73+M)
d) gl) 7M) or is) 723M)
PROBLEMS
1 conductivity cell lled ith 771amp Fl given at 2$o the
resistance of 74ohms 0he conductivity of Fl at 2$
o
is 7777
CHEMISTRY
d f O DF EEampE0
1) What are dloc8 elements
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2) What are floc8 elements
3) Explain the meaning of
i) 0ransition series ii) (nner transition element
4) Explain the position of the folloing in periodic tale
i) dloc8 elements ii) anthanoids iii) ctinoids
$) Explain the oxidation state of 1st ro elements of transition
series
) Explain the oxidation states of lanthanoids and actinoids
+) Why do lanthanoids form coloured compounds ) Explainlt most of the transition metal compounds are
remar8aly coloured
5) Why chromium has electronic conguration 3d$ 4s1 and not 3d4
4s2
17) Why does copper sho anormal electronic conguration
11) Explainlt the trends in atomic and ionic si=es of lanthanoidsand also of 1st ro elements of transition series
12) What are actinoids
13) What are transuranic elements Write their name
14) Why transition elements sho tendency to form large numer
of complexes
1$) Explain the compounds of copper ((() are coloured ut thoseof =inc are colourless
1) o is potassium dichromate prepared from chrome ion
1+) Write the preparationlt properties and use of potassium
permanganate
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1) Explainlt hy -t(M) complexes are generally octahedral hile
-t(() complexes are sCuare planar
15) ierentiate eteen lanthanoids and actinoids
27) What are chemical tins Give examples
21) Explain hy Gd3H is colourless
COORDINATION COMPOUNDS
1) What is the dierence eteen doule salt and coordinationcompounds
2) Explainlt hy 6e4)2 D4)22D) is a salt ut F 4P6e)Q is a
complex compound
3) Write the formula of the folloing complexes
i) alcium hexa cyano ferrate (()
ii) iammine dichloro platinum
iii) is ethylene diammine) dichloro iridium ((() ion
iv) -entamine caronato chromium ((() D(E
v) 0risethylene diammine ) coalt((() sulphate
vi) iamine ethylene diammine nic8el (() acetate
4) Write the rules hich are applied hile riting the formulas of
coordination compounds
$) ene the terms
i) entral metal atomgtion
ii) igand
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iii) oordination compound
iv) oordination sphere
v) oordination numer
vi) oordination polyhedral
vii) omoleptic and heteroleptic complexes
viii) harge on the complexes
ix) oordination entity
) Write (- name of the folloing complexes
i) Pr2D)4 l2QD3
ii) P-ten)l4Q
iii) F 2Pi)4Q
iv) sP6el4Q
v) rl3-y)3
vi) F 3Po2D4)3Q
vii) Por2en)2Q
viii) P-tl4Q2
ix) Po2D))en)2Q2H
x) F 3Pl2D4)3Q
+) Explain the importance of principles of additive nomenclature
) (dentify the folloing ions y a simple test forming complex
compound
i) u2H ii) i2H iii) 6e3H iv) o2H
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5) Dn the asis of WernerBs theory explainlt hy coalt amine
complexlt ol343 hen treated ith gD3 solution
precipitates only one ion even though there are three ions
17) alculate the eective atomic numer E) of the centralmetal atom in the folloing compounds
i) F 3P6e)Q ii) rD)
11) Write the postulates of WernerBs theory
12) Explain the onding in ol333 and ol3$3
13) Explain stereoisomerism in metal complexes ith coordination
numer 4 and 14) Why the tetrahedral complexes do not exhiit geometrical
isomerism
1$) ra cis and trans geometrical isomers of
i) dichlororomo iodo palladium (() ion
ii) P-t(()3)2l2Q
iii) Po((()3)l3Q
iv) Po((()3)42D)lQ2H
1) ra all possile geometrical isomers of P-t(M)
3)2-y)2l2Q2H ion
1+) Write oxidation statelt coordination numer and electronic
conguration of the metal atom in the folloing complexes
i) rl3-y)3 ii) F 4Pampn)Q
1) lassify the folloing ligands into monodentatelt polydentate
and amidentate
i) 3 ii) iii) iv) v) D2 vi) ethylene diammine
vii) oxalate
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viii) triaminotriethylamine
15) ol3$32D is a pin8 solidlt the solution of this salt is also
pin8 and formed 3mol of gl ith silver nitrate solution Dn
heating pin8 solidlt it loses one ater molecule and forms purplesolid having same ratio of o3l as that of pin8 solid 0he
purple solid hen dissolved in ater and treated ith forms 1 mol
of gl ra the structure and name of the pin8 and purple
solids
27) ame the octahedral complex ions
i) Po2D4) en)2QH ii) transPr)4 3)2Q
21) ra the structures of the folloing complexes
i) Pol4Q2 ii) Pampn3)Q2H iii) P-tlQ iv) iD)4 v) Pi)4Q2
22) (n an octahedral crystal eldlt dra the gure to sho splitting
of dorital
23) What are ea8 eld and strong eld ligands What is spectro
chemical series
24) Pi)4Q2 is diamagnetic hile Pr3)Q3H is paramagnetltexplain
2$) Dn the asis of valence ond theory explain the nature of
onding in the folloing complexes
i) Po6Q3 ii) Po2D4)3Q3
2) lue coloured copper sulphate solution gave folloing
experimental results Explain the same
i) With aCueous potassium chloride it gave right green solution
ii) With aCueous potassium Juoride it gave a green precipitate
2+) ra the structures of optically active isomers of Poen)3Q3H
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2) ra the geometrical and optical isomers of
i) Pol2en)2QH ii) Polen)23)Q2H
25) What is lin8age isomerism Explain ith an example
37) What are hydrate isomers Explain ith examples
31) Explain the structure of
i) upraammonium sulphate ii) Po3)Q3H
32) What are the limitations of valence ond theory
33) Explain the magnetic properties of coordination compounds
34) Write the salient features of crystal eld theory What are itslimitations
3$) Explain the octahedral geometry of complexes using crystal
eld theory
3) Write a note on colours in coordination compounds
3+) Explain the factors aecting the staility of coordination
compound3) Write rief the applications of coordination compounds
HALOGEN DERIVATIVES O ALANES AND ARENES
1) What are al8yl halides o are they classied
2) Write (- names of the folloing compounds
i)
ii) 2Al
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iii)
iv)
v)
vi) secutyl chloride
vii) neopentyl romide
viii) tutyl iodide
ix) isopropyl romide
3) o is ethyl romide prepared from
i) Ethyl alcohol ii) ethane iii) ethane
4)Write the preparation of isopropyl chloride using the folloing
reagents
i) -l3 ii) -l$ iii) l2 iv) l v) Dl2
$) o is group replaced y folloing functional rroups
i) OD ii) O iii) O iv) O2
) Write a note on
i) andmeyerBs reaction ii) Wurt= reaction iii) 6in8elstein reaction
iv) 6ittig reaction v) 6riedel raft reaction
+) (dentify and in the folloing
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) Give the structures of the folloing compounds
i) 3romo2methyl pentane ii) 2romo3ethyl hexane iii) 1
holo utane
iv) pichloroen=ene v) 1lt1lt10richloroethane
5) student has performed an experiment in the laoratory e
mixed ater ith hexane and found to layers separated econd
time he mixed chloroform ith ater and he again found to
layers in the test tue Explain hich ill e upper layer and
hich one ill e loer layer in oth the experiments
17) onvert 1hloroutane into the folloing compounds
i) utane1ol ii) 1(odoutane iii) 3222 iv)
11) 6or each pair of compoundslt state hich compound is etter
2 sustrate
i) 2romoutanelt isopropyl romide ii) 1(odo2lt2dimethyl
propane or isopropyl iodide
12) hoose the memer that ill react faster from the folloing
pairs y 1 mechanism
13) -redict the expected product of sustitution reaction
i) isoutyl chloride mH sodium ethoxide
ii) nutyl chloride H sodium
iii) 1hloro propane H aC potassium hydroxide
iv) aniline H aD2gt l
14) Write the products
i) $22A2 H r L
ii) $A2 H r
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iii)
iv)
v)
1$) (dentify the chiral and achiral molecules
i)
ii)
iii)
1) iscuss 2 mechanism of methyl romide using aCueous
FD ra energy prole diagram1+) Write the mechanism of the reaction hen tutyl chloride is
treated ith aCueous FD ith energy prole diagram
1) ierentiate eteen 1 and 2 mechanism
15) Explain the nature of ond in
i) 322 ii)
27) What are uses of
i) 0 ii) (odoform iii) hloroform iv) aron tetrachloride
21) l8yl halides are polar and miscile ith aterlt explain
22) Which one of the folloing is more easily hydrolysed y
aCueous FD
$l$ and $2l
23) rrange the folloing groups in descending order 2lt D3lt
D3lt DD and l
24) ssign or conguration to each of the folloing
structures
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i)
ii)
iii)
iv)
DDlt -ED E0E
1) What are alcohols o are they classied
2) What are monohydric alcohols o are they classied
4) Write the structures of folloing alcohols
i) 1Ethylcyclohexanol ii) ex3en2ol iii)yclohex2en1ol
iv) -entane1lt4diol
v) 2lt4imethylhexane1lt3lt$triol
$) Explain the folloing
i) -ropan1ol has higher oiling point than nutane
ii) ampethanol is more solule in ater than -ropan1ol
) Write the mechanism of hydration of ethylene to ethyl alcohol
+) -ropan1ol can not e prepared y acid catalyst hydration of
propenelt then ho is propene converted into propan1ol
)5) o is propanone converted into
i) -ropan2ol ii) 2ampethyl propan2ol
17) o ill you otain utan2ol from
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i) -ropanal ii) utan2one iii) ut2ene
11) o is propan1ol prepared from
i) -ropanal ii) -ropanoic acid
12) o is cyclopentanol prepared from
i) yclopentanone ii) yclopentene
14) Write the mechanism of acid catalysed dehydration of ethanol
to give ethane
1$) Write the structure of aldehyde lt caroxylic acid and ester
that yield folloing alcohol
1+) o ill you prepare
i) 2ampethylutane1ol from an al8ene
ii) cyclohexylmethanol from a Grignard reagent
iii) 1phenylethanol from acetaldehyde
1) o are folloing conversions rought aout
i) en=yl chloride to en=yl alcohol
ii) en=yl alcohol to en=oic acid
iii) 1Ethylcyclohexanol from yclohexanone
15) What are phenols o are they classied
27)21) Give the structures and (- names of isomeric phenols
represented y the molecular formula 17D
22) o is phenol prepared from
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i) hloroen=ene ii) (sopropyl en=ene iii) en=ene sulphonic
acid iv) aniline
23 ) Explain the folloing
i) -henol is more acidic than phenol
ii) onitrophenol is more acidic than ocresol
iii) pnitrophenol is less volatile than onitrophenol
24) Explain the folloing reactions of phenol
i) FoleBs reaction ii) iemer0iemann reaction
2$) ame the reagents used to convert phenol intoi) picric acid ii) 2lt4lt0riromophenol iii) en=ene iv) ophenol
sulphonic acid
2) What is the action of folloing reagents on phenol i)
romine in 2 at lo temperature
ii) ilute nitric acid at room temperature iii) oncentrated
sulphuric acid at room temperature
2+) Give distinguish test eteen phenol and ethanol
2) What are ethers o are ethers classied
25) What is metamerism Give the structure and (- name of
metamers of 2ampethoxypropane
37) Write the mechanism for acidic dehydration of ethanol
31) o is diethyl ether prepared y continuous ethericationprocess Why is the process so called
32) o ill you prepared methoxyethane from
i) l8yl halide ii) ia=omethane
33) tate the important uses of i) -henol ii) diethyl ether
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34) Write the mechanism of action of hydrogen romide on tert
utyl methyl ether
3$) Explain the folloing reactions of anisole
i) romination ii) itration iii) 6riedelrafts al8ylation iv)6riedelrafts acylation
3) Explainlt i) 0he OD group attached to aromatic ring in
phenols and ii) 0he al8oxy group in al8yl aryl ethers are ortholt
para directing and activate the aromatic ring toars electrophilic
sustitution
3+) Write the chemical eCuations for Williamson synthesis of 2
Ethoxy2methypentane starting from ethanol and 2ampethylpentan2ol
3) n organic compound ith the formula 417D3 shos
properties of ether and alcohol hen treated ith an excess of
r yields only one compound 1lt2 diromomethane Write
structural formula of ether and that of alcohol
ALDEHYDES ETONES AND CABO$YLIC
ACID
1) Write the structure and give (- names of the folloing
compounds
i) chloropropionaldehyde
ii) Rhydroxyutyraldehyde
iii) isoutyraldehyde
iv) Rmethylvaleraldehyde
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v) isopropyl methyl 8etone
vi) diisopropyl 8etone
vii) mromoen=aldehyde
viii) dien=yl 8etone
ix) divinyl 8etone
x) allyl methyl 8etone
xi) ethyl phenyl 8etone
xii) nutyrophenone
2) Write the structure of folloing compounds
i) 4ampethyl3nitroen=ophenone ii) 2ampethyl4oxopentanal iii)
3Dxopentanoic acid iv) 4chloropropiophenone v) 3
ampethoxyutanal vi) 4ydroxycyclohaxane caraldehyde
3) o ill you prepare i) propiophenone from propanenitrile ii)
4chloroen=aldehyde from 4chlorotoluene iii)
yclohaxanecaraldehyde from cyclohexylmethanol iv) 4
methoxyacetophenone from anisole v) 4methylen=aldehydefrom toluene
4) rrange the folloing compounds in the increasing order of
their oiling points
i) dimethyl etherlt ethyl alcohollt propanelt acetaldehyde
ii) acetonelt npropyl alcohollt ethyl methyl alcohol and nutane
$) What is the action of hydrogen cyanide in asic medium on i)utanone ii) 2lt4dichloroen=aldehyde
) What is the action of folloing compounds on cyclohexanone in
presence of dry hydrogen chloride
i) ethyl alcohol ii) ethylene glycol
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+) Write the structure of product in the folloing reactions
i) 322D3
ii) $2D3
) Write the structures of caronyl compounds and ammonia
derivatives that comine to give folloing imines
i)
ii)
iii)
iv)v)
vi)
5) Write the chemical eCuations for aldol condensation or
anni==aro reaction that folloing compounds undergo
i) -ropanal ii) 2ampethylpropanal iii) -entanal iv) 3
ampethylutanal v) cetophenonevi) pampethoxyen=aldehyde vii) 2ampethylcyclohaxanone viii)
chloral ix) yclopentanone
x) -henyl acetaldehyde xi) 1-henylpropan1one
17) Write the structure of the maKor product of the folloing
crossed aldol condensation
i) formaldehyde and propionaldehydeii) en=aldehyde ith acetone
11) (dentify the compounds SBlt SB and SB in the folloing
reactions and rerite the complete eCuations
i)
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ii)
12)o ill you eect folloing tostep conversions
i) -ropanal into utanone ii) utanone into ut2ene iii)
en=ene into mromoacetophenone iv) ex3yne into exan
3one v) en=oic acid into mnitroen=ylalcohol
13) o ill you convert en=aldehyde into folloing compounds
ampore than one steps may e reCuired
i) en=ophenone ii) en=oic acid iii) 3-henylpropan1ol iv)hydroxyphenylacetic acid
14) Give a chemical test to distinguish eteen folloing pairs of
compounds
i) Ethanal and propanone ii) -rpopanal and propanone iii)
-entane2one and pentane3one
1$) Write the structure and (- names of folloing caroxylicacids
i) ltRdimethylutanoic acid ii) Rphenylutyric acid iii) 1038389
chloromethylvaleric acid
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13 tate 6aradayBs las of electrolysis
14o ill you calculate the numer of moles of electrons
actually passed and mass of the sustance produced during
electrolysis of a salt solution using reaction stoichiometry1$o many electrons ill have a total charge of 1 coulom
1 o many faradayBs ould e reCuired to plate out 177 mole
of free metal from the folloing cations
a) ampg2H
) r3H
c) -2H
d) uH
1+ ene coulom and faraday
1 escrie the electrolysis of molten al using inert
electrodes
15 What is the dierence eteen electrolytic cell and voltaic
cell
27 Why is anode in galvanic cell considered to e negative and
cathode positive electrode
21 8etch the cell for the electrolysis of molten al (ndicate
cathodelt anode and their signs ho the Jo of electrons and
ions
22 What is salt ridge What are its functions in galvanic cell
23 What are the conventions used to rite cell diagramcell
formula)
24 escrie the construction of aniel cell Write electrode half
reactions and net cell reaction in aniel cell
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2$ escrie the folloing types of electrodes giving one
examplelt ith reference to formulationlt electrode reaction and
ernst eCuation for electrode potential
a) metalsparingly salt electrode) gas electrode
2 What is redox electrode Give one example ith formulationlt
electrode reaction and ernst eCuation for electrode potential
2+ ene the terms oxidation potentiallt reduction potential and
cell potential
2 What conditions are reCuired for a cell potential to e calledstandard cell potential
25 6ormulate a cell for each of the folloing electrode reactions
a) n2H aC) H 2gl s) L n4H aC) H 2gs) H2l aC)
) ampg s) H r2l) L ampg2H aC) H 2r aC)
37 6ormulate a cell from the folloing electrode reactions
a) l2g) H 2e L 2l aC)
) 2( aC) L (2s) H 2e
31 What are standard electrode potential and standard emf of
the galvanic cell
32 Write ernst eCuation and explain the terms involved in it
What part of the eCuation represents the correction factor for
nonstandard state conditions
33 Write ernst eCuation for the folloing reactions
a) rs) H 36e3H aC) L r3H aC) H 36e2H aC)
) l3H aC) H 3e L l s)
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34 onsider the folloing E7 values and half reactions
(2s) H 2e L 2( aC) E7A7$3$M
u2H aC) H 2e L u s) E7A733+M
d2H aC) H 2e L ds) E7A77473
a) Which of the metals or nonmetals or ions is the strongest
oxidi=ing agent and hich is the strongest reducing agent
) 0he half reactions can e used to construct three galvanic
cells Which ill have the highest cell potential
3$ -redict hether
a) gH can oxidi=e - to -2H under standard state condition
) E7gA7+55M and E7
-A712M
3 -redict hether the folloing reactions occur under standard
state conditions
a) Dxidation of gs) y l2g) E7gA7Mlt E7
l2A13M
) eduction of 6e
3H
to 6e
2H
y us) E
7
6e3Hlt 6e2H A 7++MltE7uA14M
3+ 8etch and descrie the operation of
a) dry cell
) 2D2 fuel cell
3 What are the advantages and disadvantages of fuel cells
35 8etch lead storage cell
47 Write electrode reaction and overall cell reaction during the
operation of lead storage cell
41 Write electrode reaction and overall cell reaction hen lead
accumulator ehaves as an electrolytic cell
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42 o can ernst eCuation e used to sho that electrode
potential is eCual to the standard electrode potential y putting
approximate values in ernst eCuation se u2HNd half cell for
illustration
43 o are G7lt E7cell and eCuilirium constant related for a
particular reaction
44 Why is eCuilirium constant related to E7cell and not Ecell
4$ G7 for a redox reaction depends on the numer of electrons
transferred Explain
4 o does the eCuiliriumlt G7An6E7 explain that an
electrical potential is an intensive property
4+ Write shorthand notation for the cell for each of the folloing
reactions
a) u2H aC) H 2gs) H 2r L u s) H 2gr s)
) n2H aC) is oxidi=ed y r2 l)
4 rrange the folloing reducing agents in order of increasing
strength under standard state conditions 0he standard potentialsfor the reduction half reactions are given
gH aC) 7M)lt l3H aC) 1M)lt 62g) 2+M)lt l2g) 13M)lt
(2s) 7$4M)lt d2H aC) 74M)
45 rrange the folloing oxidi=ing agents in order of increasing
strength under standard state conditions 0he standard potentials
for the reduction half reactions are given
ls) 1M)lt l aC) 13M)lt us) 734M)lt 6es)744M)lt r
aC) 175M)lt is) 72M)
$7 Which species in each of the folloing pairs is etter oxidi=ing
agent under standard state conditions standard potential are
given) Give reasons for your anser
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a) r2l) 175M) or u3H 14M)
) H aC) or gH aC) 7M)
c) -2H aC) 713M) or o2H 72M)
d) l2 g) 13M) or r3H 7+4M)
$1 Which species in each of the folloing pairs is etter reducing
agent under standard conditions E7 values are given Give
reasons for your anser
a) Fs) 2353M) or ampgs) 23M)
) o2H aC) 11M) or (n s) 714M)
c) e3H aC) 11M) or 0i2H73+M)
d) gl) 7M) or is) 723M)
PROBLEMS
1 conductivity cell lled ith 771amp Fl given at 2$o the
resistance of 74ohms 0he conductivity of Fl at 2$
o
is 7777
CHEMISTRY
d f O DF EEampE0
1) What are dloc8 elements
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2) What are floc8 elements
3) Explain the meaning of
i) 0ransition series ii) (nner transition element
4) Explain the position of the folloing in periodic tale
i) dloc8 elements ii) anthanoids iii) ctinoids
$) Explain the oxidation state of 1st ro elements of transition
series
) Explain the oxidation states of lanthanoids and actinoids
+) Why do lanthanoids form coloured compounds ) Explainlt most of the transition metal compounds are
remar8aly coloured
5) Why chromium has electronic conguration 3d$ 4s1 and not 3d4
4s2
17) Why does copper sho anormal electronic conguration
11) Explainlt the trends in atomic and ionic si=es of lanthanoidsand also of 1st ro elements of transition series
12) What are actinoids
13) What are transuranic elements Write their name
14) Why transition elements sho tendency to form large numer
of complexes
1$) Explain the compounds of copper ((() are coloured ut thoseof =inc are colourless
1) o is potassium dichromate prepared from chrome ion
1+) Write the preparationlt properties and use of potassium
permanganate
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1) Explainlt hy -t(M) complexes are generally octahedral hile
-t(() complexes are sCuare planar
15) ierentiate eteen lanthanoids and actinoids
27) What are chemical tins Give examples
21) Explain hy Gd3H is colourless
COORDINATION COMPOUNDS
1) What is the dierence eteen doule salt and coordinationcompounds
2) Explainlt hy 6e4)2 D4)22D) is a salt ut F 4P6e)Q is a
complex compound
3) Write the formula of the folloing complexes
i) alcium hexa cyano ferrate (()
ii) iammine dichloro platinum
iii) is ethylene diammine) dichloro iridium ((() ion
iv) -entamine caronato chromium ((() D(E
v) 0risethylene diammine ) coalt((() sulphate
vi) iamine ethylene diammine nic8el (() acetate
4) Write the rules hich are applied hile riting the formulas of
coordination compounds
$) ene the terms
i) entral metal atomgtion
ii) igand
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iii) oordination compound
iv) oordination sphere
v) oordination numer
vi) oordination polyhedral
vii) omoleptic and heteroleptic complexes
viii) harge on the complexes
ix) oordination entity
) Write (- name of the folloing complexes
i) Pr2D)4 l2QD3
ii) P-ten)l4Q
iii) F 2Pi)4Q
iv) sP6el4Q
v) rl3-y)3
vi) F 3Po2D4)3Q
vii) Por2en)2Q
viii) P-tl4Q2
ix) Po2D))en)2Q2H
x) F 3Pl2D4)3Q
+) Explain the importance of principles of additive nomenclature
) (dentify the folloing ions y a simple test forming complex
compound
i) u2H ii) i2H iii) 6e3H iv) o2H
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5) Dn the asis of WernerBs theory explainlt hy coalt amine
complexlt ol343 hen treated ith gD3 solution
precipitates only one ion even though there are three ions
17) alculate the eective atomic numer E) of the centralmetal atom in the folloing compounds
i) F 3P6e)Q ii) rD)
11) Write the postulates of WernerBs theory
12) Explain the onding in ol333 and ol3$3
13) Explain stereoisomerism in metal complexes ith coordination
numer 4 and 14) Why the tetrahedral complexes do not exhiit geometrical
isomerism
1$) ra cis and trans geometrical isomers of
i) dichlororomo iodo palladium (() ion
ii) P-t(()3)2l2Q
iii) Po((()3)l3Q
iv) Po((()3)42D)lQ2H
1) ra all possile geometrical isomers of P-t(M)
3)2-y)2l2Q2H ion
1+) Write oxidation statelt coordination numer and electronic
conguration of the metal atom in the folloing complexes
i) rl3-y)3 ii) F 4Pampn)Q
1) lassify the folloing ligands into monodentatelt polydentate
and amidentate
i) 3 ii) iii) iv) v) D2 vi) ethylene diammine
vii) oxalate
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viii) triaminotriethylamine
15) ol3$32D is a pin8 solidlt the solution of this salt is also
pin8 and formed 3mol of gl ith silver nitrate solution Dn
heating pin8 solidlt it loses one ater molecule and forms purplesolid having same ratio of o3l as that of pin8 solid 0he
purple solid hen dissolved in ater and treated ith forms 1 mol
of gl ra the structure and name of the pin8 and purple
solids
27) ame the octahedral complex ions
i) Po2D4) en)2QH ii) transPr)4 3)2Q
21) ra the structures of the folloing complexes
i) Pol4Q2 ii) Pampn3)Q2H iii) P-tlQ iv) iD)4 v) Pi)4Q2
22) (n an octahedral crystal eldlt dra the gure to sho splitting
of dorital
23) What are ea8 eld and strong eld ligands What is spectro
chemical series
24) Pi)4Q2 is diamagnetic hile Pr3)Q3H is paramagnetltexplain
2$) Dn the asis of valence ond theory explain the nature of
onding in the folloing complexes
i) Po6Q3 ii) Po2D4)3Q3
2) lue coloured copper sulphate solution gave folloing
experimental results Explain the same
i) With aCueous potassium chloride it gave right green solution
ii) With aCueous potassium Juoride it gave a green precipitate
2+) ra the structures of optically active isomers of Poen)3Q3H
8112019 Chemistry Question 12sci (1)
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2) ra the geometrical and optical isomers of
i) Pol2en)2QH ii) Polen)23)Q2H
25) What is lin8age isomerism Explain ith an example
37) What are hydrate isomers Explain ith examples
31) Explain the structure of
i) upraammonium sulphate ii) Po3)Q3H
32) What are the limitations of valence ond theory
33) Explain the magnetic properties of coordination compounds
34) Write the salient features of crystal eld theory What are itslimitations
3$) Explain the octahedral geometry of complexes using crystal
eld theory
3) Write a note on colours in coordination compounds
3+) Explain the factors aecting the staility of coordination
compound3) Write rief the applications of coordination compounds
HALOGEN DERIVATIVES O ALANES AND ARENES
1) What are al8yl halides o are they classied
2) Write (- names of the folloing compounds
i)
ii) 2Al
8112019 Chemistry Question 12sci (1)
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iii)
iv)
v)
vi) secutyl chloride
vii) neopentyl romide
viii) tutyl iodide
ix) isopropyl romide
3) o is ethyl romide prepared from
i) Ethyl alcohol ii) ethane iii) ethane
4)Write the preparation of isopropyl chloride using the folloing
reagents
i) -l3 ii) -l$ iii) l2 iv) l v) Dl2
$) o is group replaced y folloing functional rroups
i) OD ii) O iii) O iv) O2
) Write a note on
i) andmeyerBs reaction ii) Wurt= reaction iii) 6in8elstein reaction
iv) 6ittig reaction v) 6riedel raft reaction
+) (dentify and in the folloing
8112019 Chemistry Question 12sci (1)
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) Give the structures of the folloing compounds
i) 3romo2methyl pentane ii) 2romo3ethyl hexane iii) 1
holo utane
iv) pichloroen=ene v) 1lt1lt10richloroethane
5) student has performed an experiment in the laoratory e
mixed ater ith hexane and found to layers separated econd
time he mixed chloroform ith ater and he again found to
layers in the test tue Explain hich ill e upper layer and
hich one ill e loer layer in oth the experiments
17) onvert 1hloroutane into the folloing compounds
i) utane1ol ii) 1(odoutane iii) 3222 iv)
11) 6or each pair of compoundslt state hich compound is etter
2 sustrate
i) 2romoutanelt isopropyl romide ii) 1(odo2lt2dimethyl
propane or isopropyl iodide
12) hoose the memer that ill react faster from the folloing
pairs y 1 mechanism
13) -redict the expected product of sustitution reaction
i) isoutyl chloride mH sodium ethoxide
ii) nutyl chloride H sodium
iii) 1hloro propane H aC potassium hydroxide
iv) aniline H aD2gt l
14) Write the products
i) $22A2 H r L
ii) $A2 H r
8112019 Chemistry Question 12sci (1)
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iii)
iv)
v)
1$) (dentify the chiral and achiral molecules
i)
ii)
iii)
1) iscuss 2 mechanism of methyl romide using aCueous
FD ra energy prole diagram1+) Write the mechanism of the reaction hen tutyl chloride is
treated ith aCueous FD ith energy prole diagram
1) ierentiate eteen 1 and 2 mechanism
15) Explain the nature of ond in
i) 322 ii)
27) What are uses of
i) 0 ii) (odoform iii) hloroform iv) aron tetrachloride
21) l8yl halides are polar and miscile ith aterlt explain
22) Which one of the folloing is more easily hydrolysed y
aCueous FD
$l$ and $2l
23) rrange the folloing groups in descending order 2lt D3lt
D3lt DD and l
24) ssign or conguration to each of the folloing
structures
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i)
ii)
iii)
iv)
DDlt -ED E0E
1) What are alcohols o are they classied
2) What are monohydric alcohols o are they classied
4) Write the structures of folloing alcohols
i) 1Ethylcyclohexanol ii) ex3en2ol iii)yclohex2en1ol
iv) -entane1lt4diol
v) 2lt4imethylhexane1lt3lt$triol
$) Explain the folloing
i) -ropan1ol has higher oiling point than nutane
ii) ampethanol is more solule in ater than -ropan1ol
) Write the mechanism of hydration of ethylene to ethyl alcohol
+) -ropan1ol can not e prepared y acid catalyst hydration of
propenelt then ho is propene converted into propan1ol
)5) o is propanone converted into
i) -ropan2ol ii) 2ampethyl propan2ol
17) o ill you otain utan2ol from
8112019 Chemistry Question 12sci (1)
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i) -ropanal ii) utan2one iii) ut2ene
11) o is propan1ol prepared from
i) -ropanal ii) -ropanoic acid
12) o is cyclopentanol prepared from
i) yclopentanone ii) yclopentene
14) Write the mechanism of acid catalysed dehydration of ethanol
to give ethane
1$) Write the structure of aldehyde lt caroxylic acid and ester
that yield folloing alcohol
1+) o ill you prepare
i) 2ampethylutane1ol from an al8ene
ii) cyclohexylmethanol from a Grignard reagent
iii) 1phenylethanol from acetaldehyde
1) o are folloing conversions rought aout
i) en=yl chloride to en=yl alcohol
ii) en=yl alcohol to en=oic acid
iii) 1Ethylcyclohexanol from yclohexanone
15) What are phenols o are they classied
27)21) Give the structures and (- names of isomeric phenols
represented y the molecular formula 17D
22) o is phenol prepared from
8112019 Chemistry Question 12sci (1)
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i) hloroen=ene ii) (sopropyl en=ene iii) en=ene sulphonic
acid iv) aniline
23 ) Explain the folloing
i) -henol is more acidic than phenol
ii) onitrophenol is more acidic than ocresol
iii) pnitrophenol is less volatile than onitrophenol
24) Explain the folloing reactions of phenol
i) FoleBs reaction ii) iemer0iemann reaction
2$) ame the reagents used to convert phenol intoi) picric acid ii) 2lt4lt0riromophenol iii) en=ene iv) ophenol
sulphonic acid
2) What is the action of folloing reagents on phenol i)
romine in 2 at lo temperature
ii) ilute nitric acid at room temperature iii) oncentrated
sulphuric acid at room temperature
2+) Give distinguish test eteen phenol and ethanol
2) What are ethers o are ethers classied
25) What is metamerism Give the structure and (- name of
metamers of 2ampethoxypropane
37) Write the mechanism for acidic dehydration of ethanol
31) o is diethyl ether prepared y continuous ethericationprocess Why is the process so called
32) o ill you prepared methoxyethane from
i) l8yl halide ii) ia=omethane
33) tate the important uses of i) -henol ii) diethyl ether
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34) Write the mechanism of action of hydrogen romide on tert
utyl methyl ether
3$) Explain the folloing reactions of anisole
i) romination ii) itration iii) 6riedelrafts al8ylation iv)6riedelrafts acylation
3) Explainlt i) 0he OD group attached to aromatic ring in
phenols and ii) 0he al8oxy group in al8yl aryl ethers are ortholt
para directing and activate the aromatic ring toars electrophilic
sustitution
3+) Write the chemical eCuations for Williamson synthesis of 2
Ethoxy2methypentane starting from ethanol and 2ampethylpentan2ol
3) n organic compound ith the formula 417D3 shos
properties of ether and alcohol hen treated ith an excess of
r yields only one compound 1lt2 diromomethane Write
structural formula of ether and that of alcohol
ALDEHYDES ETONES AND CABO$YLIC
ACID
1) Write the structure and give (- names of the folloing
compounds
i) chloropropionaldehyde
ii) Rhydroxyutyraldehyde
iii) isoutyraldehyde
iv) Rmethylvaleraldehyde
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v) isopropyl methyl 8etone
vi) diisopropyl 8etone
vii) mromoen=aldehyde
viii) dien=yl 8etone
ix) divinyl 8etone
x) allyl methyl 8etone
xi) ethyl phenyl 8etone
xii) nutyrophenone
2) Write the structure of folloing compounds
i) 4ampethyl3nitroen=ophenone ii) 2ampethyl4oxopentanal iii)
3Dxopentanoic acid iv) 4chloropropiophenone v) 3
ampethoxyutanal vi) 4ydroxycyclohaxane caraldehyde
3) o ill you prepare i) propiophenone from propanenitrile ii)
4chloroen=aldehyde from 4chlorotoluene iii)
yclohaxanecaraldehyde from cyclohexylmethanol iv) 4
methoxyacetophenone from anisole v) 4methylen=aldehydefrom toluene
4) rrange the folloing compounds in the increasing order of
their oiling points
i) dimethyl etherlt ethyl alcohollt propanelt acetaldehyde
ii) acetonelt npropyl alcohollt ethyl methyl alcohol and nutane
$) What is the action of hydrogen cyanide in asic medium on i)utanone ii) 2lt4dichloroen=aldehyde
) What is the action of folloing compounds on cyclohexanone in
presence of dry hydrogen chloride
i) ethyl alcohol ii) ethylene glycol
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+) Write the structure of product in the folloing reactions
i) 322D3
ii) $2D3
) Write the structures of caronyl compounds and ammonia
derivatives that comine to give folloing imines
i)
ii)
iii)
iv)v)
vi)
5) Write the chemical eCuations for aldol condensation or
anni==aro reaction that folloing compounds undergo
i) -ropanal ii) 2ampethylpropanal iii) -entanal iv) 3
ampethylutanal v) cetophenonevi) pampethoxyen=aldehyde vii) 2ampethylcyclohaxanone viii)
chloral ix) yclopentanone
x) -henyl acetaldehyde xi) 1-henylpropan1one
17) Write the structure of the maKor product of the folloing
crossed aldol condensation
i) formaldehyde and propionaldehydeii) en=aldehyde ith acetone
11) (dentify the compounds SBlt SB and SB in the folloing
reactions and rerite the complete eCuations
i)
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ii)
12)o ill you eect folloing tostep conversions
i) -ropanal into utanone ii) utanone into ut2ene iii)
en=ene into mromoacetophenone iv) ex3yne into exan
3one v) en=oic acid into mnitroen=ylalcohol
13) o ill you convert en=aldehyde into folloing compounds
ampore than one steps may e reCuired
i) en=ophenone ii) en=oic acid iii) 3-henylpropan1ol iv)hydroxyphenylacetic acid
14) Give a chemical test to distinguish eteen folloing pairs of
compounds
i) Ethanal and propanone ii) -rpopanal and propanone iii)
-entane2one and pentane3one
1$) Write the structure and (- names of folloing caroxylicacids
i) ltRdimethylutanoic acid ii) Rphenylutyric acid iii) 1038389
chloromethylvaleric acid
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2$ escrie the folloing types of electrodes giving one
examplelt ith reference to formulationlt electrode reaction and
ernst eCuation for electrode potential
a) metalsparingly salt electrode) gas electrode
2 What is redox electrode Give one example ith formulationlt
electrode reaction and ernst eCuation for electrode potential
2+ ene the terms oxidation potentiallt reduction potential and
cell potential
2 What conditions are reCuired for a cell potential to e calledstandard cell potential
25 6ormulate a cell for each of the folloing electrode reactions
a) n2H aC) H 2gl s) L n4H aC) H 2gs) H2l aC)
) ampg s) H r2l) L ampg2H aC) H 2r aC)
37 6ormulate a cell from the folloing electrode reactions
a) l2g) H 2e L 2l aC)
) 2( aC) L (2s) H 2e
31 What are standard electrode potential and standard emf of
the galvanic cell
32 Write ernst eCuation and explain the terms involved in it
What part of the eCuation represents the correction factor for
nonstandard state conditions
33 Write ernst eCuation for the folloing reactions
a) rs) H 36e3H aC) L r3H aC) H 36e2H aC)
) l3H aC) H 3e L l s)
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34 onsider the folloing E7 values and half reactions
(2s) H 2e L 2( aC) E7A7$3$M
u2H aC) H 2e L u s) E7A733+M
d2H aC) H 2e L ds) E7A77473
a) Which of the metals or nonmetals or ions is the strongest
oxidi=ing agent and hich is the strongest reducing agent
) 0he half reactions can e used to construct three galvanic
cells Which ill have the highest cell potential
3$ -redict hether
a) gH can oxidi=e - to -2H under standard state condition
) E7gA7+55M and E7
-A712M
3 -redict hether the folloing reactions occur under standard
state conditions
a) Dxidation of gs) y l2g) E7gA7Mlt E7
l2A13M
) eduction of 6e
3H
to 6e
2H
y us) E
7
6e3Hlt 6e2H A 7++MltE7uA14M
3+ 8etch and descrie the operation of
a) dry cell
) 2D2 fuel cell
3 What are the advantages and disadvantages of fuel cells
35 8etch lead storage cell
47 Write electrode reaction and overall cell reaction during the
operation of lead storage cell
41 Write electrode reaction and overall cell reaction hen lead
accumulator ehaves as an electrolytic cell
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42 o can ernst eCuation e used to sho that electrode
potential is eCual to the standard electrode potential y putting
approximate values in ernst eCuation se u2HNd half cell for
illustration
43 o are G7lt E7cell and eCuilirium constant related for a
particular reaction
44 Why is eCuilirium constant related to E7cell and not Ecell
4$ G7 for a redox reaction depends on the numer of electrons
transferred Explain
4 o does the eCuiliriumlt G7An6E7 explain that an
electrical potential is an intensive property
4+ Write shorthand notation for the cell for each of the folloing
reactions
a) u2H aC) H 2gs) H 2r L u s) H 2gr s)
) n2H aC) is oxidi=ed y r2 l)
4 rrange the folloing reducing agents in order of increasing
strength under standard state conditions 0he standard potentialsfor the reduction half reactions are given
gH aC) 7M)lt l3H aC) 1M)lt 62g) 2+M)lt l2g) 13M)lt
(2s) 7$4M)lt d2H aC) 74M)
45 rrange the folloing oxidi=ing agents in order of increasing
strength under standard state conditions 0he standard potentials
for the reduction half reactions are given
ls) 1M)lt l aC) 13M)lt us) 734M)lt 6es)744M)lt r
aC) 175M)lt is) 72M)
$7 Which species in each of the folloing pairs is etter oxidi=ing
agent under standard state conditions standard potential are
given) Give reasons for your anser
8112019 Chemistry Question 12sci (1)
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a) r2l) 175M) or u3H 14M)
) H aC) or gH aC) 7M)
c) -2H aC) 713M) or o2H 72M)
d) l2 g) 13M) or r3H 7+4M)
$1 Which species in each of the folloing pairs is etter reducing
agent under standard conditions E7 values are given Give
reasons for your anser
a) Fs) 2353M) or ampgs) 23M)
) o2H aC) 11M) or (n s) 714M)
c) e3H aC) 11M) or 0i2H73+M)
d) gl) 7M) or is) 723M)
PROBLEMS
1 conductivity cell lled ith 771amp Fl given at 2$o the
resistance of 74ohms 0he conductivity of Fl at 2$
o
is 7777
CHEMISTRY
d f O DF EEampE0
1) What are dloc8 elements
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2) What are floc8 elements
3) Explain the meaning of
i) 0ransition series ii) (nner transition element
4) Explain the position of the folloing in periodic tale
i) dloc8 elements ii) anthanoids iii) ctinoids
$) Explain the oxidation state of 1st ro elements of transition
series
) Explain the oxidation states of lanthanoids and actinoids
+) Why do lanthanoids form coloured compounds ) Explainlt most of the transition metal compounds are
remar8aly coloured
5) Why chromium has electronic conguration 3d$ 4s1 and not 3d4
4s2
17) Why does copper sho anormal electronic conguration
11) Explainlt the trends in atomic and ionic si=es of lanthanoidsand also of 1st ro elements of transition series
12) What are actinoids
13) What are transuranic elements Write their name
14) Why transition elements sho tendency to form large numer
of complexes
1$) Explain the compounds of copper ((() are coloured ut thoseof =inc are colourless
1) o is potassium dichromate prepared from chrome ion
1+) Write the preparationlt properties and use of potassium
permanganate
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1) Explainlt hy -t(M) complexes are generally octahedral hile
-t(() complexes are sCuare planar
15) ierentiate eteen lanthanoids and actinoids
27) What are chemical tins Give examples
21) Explain hy Gd3H is colourless
COORDINATION COMPOUNDS
1) What is the dierence eteen doule salt and coordinationcompounds
2) Explainlt hy 6e4)2 D4)22D) is a salt ut F 4P6e)Q is a
complex compound
3) Write the formula of the folloing complexes
i) alcium hexa cyano ferrate (()
ii) iammine dichloro platinum
iii) is ethylene diammine) dichloro iridium ((() ion
iv) -entamine caronato chromium ((() D(E
v) 0risethylene diammine ) coalt((() sulphate
vi) iamine ethylene diammine nic8el (() acetate
4) Write the rules hich are applied hile riting the formulas of
coordination compounds
$) ene the terms
i) entral metal atomgtion
ii) igand
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iii) oordination compound
iv) oordination sphere
v) oordination numer
vi) oordination polyhedral
vii) omoleptic and heteroleptic complexes
viii) harge on the complexes
ix) oordination entity
) Write (- name of the folloing complexes
i) Pr2D)4 l2QD3
ii) P-ten)l4Q
iii) F 2Pi)4Q
iv) sP6el4Q
v) rl3-y)3
vi) F 3Po2D4)3Q
vii) Por2en)2Q
viii) P-tl4Q2
ix) Po2D))en)2Q2H
x) F 3Pl2D4)3Q
+) Explain the importance of principles of additive nomenclature
) (dentify the folloing ions y a simple test forming complex
compound
i) u2H ii) i2H iii) 6e3H iv) o2H
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5) Dn the asis of WernerBs theory explainlt hy coalt amine
complexlt ol343 hen treated ith gD3 solution
precipitates only one ion even though there are three ions
17) alculate the eective atomic numer E) of the centralmetal atom in the folloing compounds
i) F 3P6e)Q ii) rD)
11) Write the postulates of WernerBs theory
12) Explain the onding in ol333 and ol3$3
13) Explain stereoisomerism in metal complexes ith coordination
numer 4 and 14) Why the tetrahedral complexes do not exhiit geometrical
isomerism
1$) ra cis and trans geometrical isomers of
i) dichlororomo iodo palladium (() ion
ii) P-t(()3)2l2Q
iii) Po((()3)l3Q
iv) Po((()3)42D)lQ2H
1) ra all possile geometrical isomers of P-t(M)
3)2-y)2l2Q2H ion
1+) Write oxidation statelt coordination numer and electronic
conguration of the metal atom in the folloing complexes
i) rl3-y)3 ii) F 4Pampn)Q
1) lassify the folloing ligands into monodentatelt polydentate
and amidentate
i) 3 ii) iii) iv) v) D2 vi) ethylene diammine
vii) oxalate
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viii) triaminotriethylamine
15) ol3$32D is a pin8 solidlt the solution of this salt is also
pin8 and formed 3mol of gl ith silver nitrate solution Dn
heating pin8 solidlt it loses one ater molecule and forms purplesolid having same ratio of o3l as that of pin8 solid 0he
purple solid hen dissolved in ater and treated ith forms 1 mol
of gl ra the structure and name of the pin8 and purple
solids
27) ame the octahedral complex ions
i) Po2D4) en)2QH ii) transPr)4 3)2Q
21) ra the structures of the folloing complexes
i) Pol4Q2 ii) Pampn3)Q2H iii) P-tlQ iv) iD)4 v) Pi)4Q2
22) (n an octahedral crystal eldlt dra the gure to sho splitting
of dorital
23) What are ea8 eld and strong eld ligands What is spectro
chemical series
24) Pi)4Q2 is diamagnetic hile Pr3)Q3H is paramagnetltexplain
2$) Dn the asis of valence ond theory explain the nature of
onding in the folloing complexes
i) Po6Q3 ii) Po2D4)3Q3
2) lue coloured copper sulphate solution gave folloing
experimental results Explain the same
i) With aCueous potassium chloride it gave right green solution
ii) With aCueous potassium Juoride it gave a green precipitate
2+) ra the structures of optically active isomers of Poen)3Q3H
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2) ra the geometrical and optical isomers of
i) Pol2en)2QH ii) Polen)23)Q2H
25) What is lin8age isomerism Explain ith an example
37) What are hydrate isomers Explain ith examples
31) Explain the structure of
i) upraammonium sulphate ii) Po3)Q3H
32) What are the limitations of valence ond theory
33) Explain the magnetic properties of coordination compounds
34) Write the salient features of crystal eld theory What are itslimitations
3$) Explain the octahedral geometry of complexes using crystal
eld theory
3) Write a note on colours in coordination compounds
3+) Explain the factors aecting the staility of coordination
compound3) Write rief the applications of coordination compounds
HALOGEN DERIVATIVES O ALANES AND ARENES
1) What are al8yl halides o are they classied
2) Write (- names of the folloing compounds
i)
ii) 2Al
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iii)
iv)
v)
vi) secutyl chloride
vii) neopentyl romide
viii) tutyl iodide
ix) isopropyl romide
3) o is ethyl romide prepared from
i) Ethyl alcohol ii) ethane iii) ethane
4)Write the preparation of isopropyl chloride using the folloing
reagents
i) -l3 ii) -l$ iii) l2 iv) l v) Dl2
$) o is group replaced y folloing functional rroups
i) OD ii) O iii) O iv) O2
) Write a note on
i) andmeyerBs reaction ii) Wurt= reaction iii) 6in8elstein reaction
iv) 6ittig reaction v) 6riedel raft reaction
+) (dentify and in the folloing
8112019 Chemistry Question 12sci (1)
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) Give the structures of the folloing compounds
i) 3romo2methyl pentane ii) 2romo3ethyl hexane iii) 1
holo utane
iv) pichloroen=ene v) 1lt1lt10richloroethane
5) student has performed an experiment in the laoratory e
mixed ater ith hexane and found to layers separated econd
time he mixed chloroform ith ater and he again found to
layers in the test tue Explain hich ill e upper layer and
hich one ill e loer layer in oth the experiments
17) onvert 1hloroutane into the folloing compounds
i) utane1ol ii) 1(odoutane iii) 3222 iv)
11) 6or each pair of compoundslt state hich compound is etter
2 sustrate
i) 2romoutanelt isopropyl romide ii) 1(odo2lt2dimethyl
propane or isopropyl iodide
12) hoose the memer that ill react faster from the folloing
pairs y 1 mechanism
13) -redict the expected product of sustitution reaction
i) isoutyl chloride mH sodium ethoxide
ii) nutyl chloride H sodium
iii) 1hloro propane H aC potassium hydroxide
iv) aniline H aD2gt l
14) Write the products
i) $22A2 H r L
ii) $A2 H r
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iii)
iv)
v)
1$) (dentify the chiral and achiral molecules
i)
ii)
iii)
1) iscuss 2 mechanism of methyl romide using aCueous
FD ra energy prole diagram1+) Write the mechanism of the reaction hen tutyl chloride is
treated ith aCueous FD ith energy prole diagram
1) ierentiate eteen 1 and 2 mechanism
15) Explain the nature of ond in
i) 322 ii)
27) What are uses of
i) 0 ii) (odoform iii) hloroform iv) aron tetrachloride
21) l8yl halides are polar and miscile ith aterlt explain
22) Which one of the folloing is more easily hydrolysed y
aCueous FD
$l$ and $2l
23) rrange the folloing groups in descending order 2lt D3lt
D3lt DD and l
24) ssign or conguration to each of the folloing
structures
8112019 Chemistry Question 12sci (1)
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i)
ii)
iii)
iv)
DDlt -ED E0E
1) What are alcohols o are they classied
2) What are monohydric alcohols o are they classied
4) Write the structures of folloing alcohols
i) 1Ethylcyclohexanol ii) ex3en2ol iii)yclohex2en1ol
iv) -entane1lt4diol
v) 2lt4imethylhexane1lt3lt$triol
$) Explain the folloing
i) -ropan1ol has higher oiling point than nutane
ii) ampethanol is more solule in ater than -ropan1ol
) Write the mechanism of hydration of ethylene to ethyl alcohol
+) -ropan1ol can not e prepared y acid catalyst hydration of
propenelt then ho is propene converted into propan1ol
)5) o is propanone converted into
i) -ropan2ol ii) 2ampethyl propan2ol
17) o ill you otain utan2ol from
8112019 Chemistry Question 12sci (1)
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i) -ropanal ii) utan2one iii) ut2ene
11) o is propan1ol prepared from
i) -ropanal ii) -ropanoic acid
12) o is cyclopentanol prepared from
i) yclopentanone ii) yclopentene
14) Write the mechanism of acid catalysed dehydration of ethanol
to give ethane
1$) Write the structure of aldehyde lt caroxylic acid and ester
that yield folloing alcohol
1+) o ill you prepare
i) 2ampethylutane1ol from an al8ene
ii) cyclohexylmethanol from a Grignard reagent
iii) 1phenylethanol from acetaldehyde
1) o are folloing conversions rought aout
i) en=yl chloride to en=yl alcohol
ii) en=yl alcohol to en=oic acid
iii) 1Ethylcyclohexanol from yclohexanone
15) What are phenols o are they classied
27)21) Give the structures and (- names of isomeric phenols
represented y the molecular formula 17D
22) o is phenol prepared from
8112019 Chemistry Question 12sci (1)
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i) hloroen=ene ii) (sopropyl en=ene iii) en=ene sulphonic
acid iv) aniline
23 ) Explain the folloing
i) -henol is more acidic than phenol
ii) onitrophenol is more acidic than ocresol
iii) pnitrophenol is less volatile than onitrophenol
24) Explain the folloing reactions of phenol
i) FoleBs reaction ii) iemer0iemann reaction
2$) ame the reagents used to convert phenol intoi) picric acid ii) 2lt4lt0riromophenol iii) en=ene iv) ophenol
sulphonic acid
2) What is the action of folloing reagents on phenol i)
romine in 2 at lo temperature
ii) ilute nitric acid at room temperature iii) oncentrated
sulphuric acid at room temperature
2+) Give distinguish test eteen phenol and ethanol
2) What are ethers o are ethers classied
25) What is metamerism Give the structure and (- name of
metamers of 2ampethoxypropane
37) Write the mechanism for acidic dehydration of ethanol
31) o is diethyl ether prepared y continuous ethericationprocess Why is the process so called
32) o ill you prepared methoxyethane from
i) l8yl halide ii) ia=omethane
33) tate the important uses of i) -henol ii) diethyl ether
8112019 Chemistry Question 12sci (1)
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34) Write the mechanism of action of hydrogen romide on tert
utyl methyl ether
3$) Explain the folloing reactions of anisole
i) romination ii) itration iii) 6riedelrafts al8ylation iv)6riedelrafts acylation
3) Explainlt i) 0he OD group attached to aromatic ring in
phenols and ii) 0he al8oxy group in al8yl aryl ethers are ortholt
para directing and activate the aromatic ring toars electrophilic
sustitution
3+) Write the chemical eCuations for Williamson synthesis of 2
Ethoxy2methypentane starting from ethanol and 2ampethylpentan2ol
3) n organic compound ith the formula 417D3 shos
properties of ether and alcohol hen treated ith an excess of
r yields only one compound 1lt2 diromomethane Write
structural formula of ether and that of alcohol
ALDEHYDES ETONES AND CABO$YLIC
ACID
1) Write the structure and give (- names of the folloing
compounds
i) chloropropionaldehyde
ii) Rhydroxyutyraldehyde
iii) isoutyraldehyde
iv) Rmethylvaleraldehyde
8112019 Chemistry Question 12sci (1)
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v) isopropyl methyl 8etone
vi) diisopropyl 8etone
vii) mromoen=aldehyde
viii) dien=yl 8etone
ix) divinyl 8etone
x) allyl methyl 8etone
xi) ethyl phenyl 8etone
xii) nutyrophenone
2) Write the structure of folloing compounds
i) 4ampethyl3nitroen=ophenone ii) 2ampethyl4oxopentanal iii)
3Dxopentanoic acid iv) 4chloropropiophenone v) 3
ampethoxyutanal vi) 4ydroxycyclohaxane caraldehyde
3) o ill you prepare i) propiophenone from propanenitrile ii)
4chloroen=aldehyde from 4chlorotoluene iii)
yclohaxanecaraldehyde from cyclohexylmethanol iv) 4
methoxyacetophenone from anisole v) 4methylen=aldehydefrom toluene
4) rrange the folloing compounds in the increasing order of
their oiling points
i) dimethyl etherlt ethyl alcohollt propanelt acetaldehyde
ii) acetonelt npropyl alcohollt ethyl methyl alcohol and nutane
$) What is the action of hydrogen cyanide in asic medium on i)utanone ii) 2lt4dichloroen=aldehyde
) What is the action of folloing compounds on cyclohexanone in
presence of dry hydrogen chloride
i) ethyl alcohol ii) ethylene glycol
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+) Write the structure of product in the folloing reactions
i) 322D3
ii) $2D3
) Write the structures of caronyl compounds and ammonia
derivatives that comine to give folloing imines
i)
ii)
iii)
iv)v)
vi)
5) Write the chemical eCuations for aldol condensation or
anni==aro reaction that folloing compounds undergo
i) -ropanal ii) 2ampethylpropanal iii) -entanal iv) 3
ampethylutanal v) cetophenonevi) pampethoxyen=aldehyde vii) 2ampethylcyclohaxanone viii)
chloral ix) yclopentanone
x) -henyl acetaldehyde xi) 1-henylpropan1one
17) Write the structure of the maKor product of the folloing
crossed aldol condensation
i) formaldehyde and propionaldehydeii) en=aldehyde ith acetone
11) (dentify the compounds SBlt SB and SB in the folloing
reactions and rerite the complete eCuations
i)
8112019 Chemistry Question 12sci (1)
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ii)
12)o ill you eect folloing tostep conversions
i) -ropanal into utanone ii) utanone into ut2ene iii)
en=ene into mromoacetophenone iv) ex3yne into exan
3one v) en=oic acid into mnitroen=ylalcohol
13) o ill you convert en=aldehyde into folloing compounds
ampore than one steps may e reCuired
i) en=ophenone ii) en=oic acid iii) 3-henylpropan1ol iv)hydroxyphenylacetic acid
14) Give a chemical test to distinguish eteen folloing pairs of
compounds
i) Ethanal and propanone ii) -rpopanal and propanone iii)
-entane2one and pentane3one
1$) Write the structure and (- names of folloing caroxylicacids
i) ltRdimethylutanoic acid ii) Rphenylutyric acid iii) 1038389
chloromethylvaleric acid
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34 onsider the folloing E7 values and half reactions
(2s) H 2e L 2( aC) E7A7$3$M
u2H aC) H 2e L u s) E7A733+M
d2H aC) H 2e L ds) E7A77473
a) Which of the metals or nonmetals or ions is the strongest
oxidi=ing agent and hich is the strongest reducing agent
) 0he half reactions can e used to construct three galvanic
cells Which ill have the highest cell potential
3$ -redict hether
a) gH can oxidi=e - to -2H under standard state condition
) E7gA7+55M and E7
-A712M
3 -redict hether the folloing reactions occur under standard
state conditions
a) Dxidation of gs) y l2g) E7gA7Mlt E7
l2A13M
) eduction of 6e
3H
to 6e
2H
y us) E
7
6e3Hlt 6e2H A 7++MltE7uA14M
3+ 8etch and descrie the operation of
a) dry cell
) 2D2 fuel cell
3 What are the advantages and disadvantages of fuel cells
35 8etch lead storage cell
47 Write electrode reaction and overall cell reaction during the
operation of lead storage cell
41 Write electrode reaction and overall cell reaction hen lead
accumulator ehaves as an electrolytic cell
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42 o can ernst eCuation e used to sho that electrode
potential is eCual to the standard electrode potential y putting
approximate values in ernst eCuation se u2HNd half cell for
illustration
43 o are G7lt E7cell and eCuilirium constant related for a
particular reaction
44 Why is eCuilirium constant related to E7cell and not Ecell
4$ G7 for a redox reaction depends on the numer of electrons
transferred Explain
4 o does the eCuiliriumlt G7An6E7 explain that an
electrical potential is an intensive property
4+ Write shorthand notation for the cell for each of the folloing
reactions
a) u2H aC) H 2gs) H 2r L u s) H 2gr s)
) n2H aC) is oxidi=ed y r2 l)
4 rrange the folloing reducing agents in order of increasing
strength under standard state conditions 0he standard potentialsfor the reduction half reactions are given
gH aC) 7M)lt l3H aC) 1M)lt 62g) 2+M)lt l2g) 13M)lt
(2s) 7$4M)lt d2H aC) 74M)
45 rrange the folloing oxidi=ing agents in order of increasing
strength under standard state conditions 0he standard potentials
for the reduction half reactions are given
ls) 1M)lt l aC) 13M)lt us) 734M)lt 6es)744M)lt r
aC) 175M)lt is) 72M)
$7 Which species in each of the folloing pairs is etter oxidi=ing
agent under standard state conditions standard potential are
given) Give reasons for your anser
8112019 Chemistry Question 12sci (1)
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a) r2l) 175M) or u3H 14M)
) H aC) or gH aC) 7M)
c) -2H aC) 713M) or o2H 72M)
d) l2 g) 13M) or r3H 7+4M)
$1 Which species in each of the folloing pairs is etter reducing
agent under standard conditions E7 values are given Give
reasons for your anser
a) Fs) 2353M) or ampgs) 23M)
) o2H aC) 11M) or (n s) 714M)
c) e3H aC) 11M) or 0i2H73+M)
d) gl) 7M) or is) 723M)
PROBLEMS
1 conductivity cell lled ith 771amp Fl given at 2$o the
resistance of 74ohms 0he conductivity of Fl at 2$
o
is 7777
CHEMISTRY
d f O DF EEampE0
1) What are dloc8 elements
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2) What are floc8 elements
3) Explain the meaning of
i) 0ransition series ii) (nner transition element
4) Explain the position of the folloing in periodic tale
i) dloc8 elements ii) anthanoids iii) ctinoids
$) Explain the oxidation state of 1st ro elements of transition
series
) Explain the oxidation states of lanthanoids and actinoids
+) Why do lanthanoids form coloured compounds ) Explainlt most of the transition metal compounds are
remar8aly coloured
5) Why chromium has electronic conguration 3d$ 4s1 and not 3d4
4s2
17) Why does copper sho anormal electronic conguration
11) Explainlt the trends in atomic and ionic si=es of lanthanoidsand also of 1st ro elements of transition series
12) What are actinoids
13) What are transuranic elements Write their name
14) Why transition elements sho tendency to form large numer
of complexes
1$) Explain the compounds of copper ((() are coloured ut thoseof =inc are colourless
1) o is potassium dichromate prepared from chrome ion
1+) Write the preparationlt properties and use of potassium
permanganate
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1) Explainlt hy -t(M) complexes are generally octahedral hile
-t(() complexes are sCuare planar
15) ierentiate eteen lanthanoids and actinoids
27) What are chemical tins Give examples
21) Explain hy Gd3H is colourless
COORDINATION COMPOUNDS
1) What is the dierence eteen doule salt and coordinationcompounds
2) Explainlt hy 6e4)2 D4)22D) is a salt ut F 4P6e)Q is a
complex compound
3) Write the formula of the folloing complexes
i) alcium hexa cyano ferrate (()
ii) iammine dichloro platinum
iii) is ethylene diammine) dichloro iridium ((() ion
iv) -entamine caronato chromium ((() D(E
v) 0risethylene diammine ) coalt((() sulphate
vi) iamine ethylene diammine nic8el (() acetate
4) Write the rules hich are applied hile riting the formulas of
coordination compounds
$) ene the terms
i) entral metal atomgtion
ii) igand
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iii) oordination compound
iv) oordination sphere
v) oordination numer
vi) oordination polyhedral
vii) omoleptic and heteroleptic complexes
viii) harge on the complexes
ix) oordination entity
) Write (- name of the folloing complexes
i) Pr2D)4 l2QD3
ii) P-ten)l4Q
iii) F 2Pi)4Q
iv) sP6el4Q
v) rl3-y)3
vi) F 3Po2D4)3Q
vii) Por2en)2Q
viii) P-tl4Q2
ix) Po2D))en)2Q2H
x) F 3Pl2D4)3Q
+) Explain the importance of principles of additive nomenclature
) (dentify the folloing ions y a simple test forming complex
compound
i) u2H ii) i2H iii) 6e3H iv) o2H
8112019 Chemistry Question 12sci (1)
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5) Dn the asis of WernerBs theory explainlt hy coalt amine
complexlt ol343 hen treated ith gD3 solution
precipitates only one ion even though there are three ions
17) alculate the eective atomic numer E) of the centralmetal atom in the folloing compounds
i) F 3P6e)Q ii) rD)
11) Write the postulates of WernerBs theory
12) Explain the onding in ol333 and ol3$3
13) Explain stereoisomerism in metal complexes ith coordination
numer 4 and 14) Why the tetrahedral complexes do not exhiit geometrical
isomerism
1$) ra cis and trans geometrical isomers of
i) dichlororomo iodo palladium (() ion
ii) P-t(()3)2l2Q
iii) Po((()3)l3Q
iv) Po((()3)42D)lQ2H
1) ra all possile geometrical isomers of P-t(M)
3)2-y)2l2Q2H ion
1+) Write oxidation statelt coordination numer and electronic
conguration of the metal atom in the folloing complexes
i) rl3-y)3 ii) F 4Pampn)Q
1) lassify the folloing ligands into monodentatelt polydentate
and amidentate
i) 3 ii) iii) iv) v) D2 vi) ethylene diammine
vii) oxalate
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viii) triaminotriethylamine
15) ol3$32D is a pin8 solidlt the solution of this salt is also
pin8 and formed 3mol of gl ith silver nitrate solution Dn
heating pin8 solidlt it loses one ater molecule and forms purplesolid having same ratio of o3l as that of pin8 solid 0he
purple solid hen dissolved in ater and treated ith forms 1 mol
of gl ra the structure and name of the pin8 and purple
solids
27) ame the octahedral complex ions
i) Po2D4) en)2QH ii) transPr)4 3)2Q
21) ra the structures of the folloing complexes
i) Pol4Q2 ii) Pampn3)Q2H iii) P-tlQ iv) iD)4 v) Pi)4Q2
22) (n an octahedral crystal eldlt dra the gure to sho splitting
of dorital
23) What are ea8 eld and strong eld ligands What is spectro
chemical series
24) Pi)4Q2 is diamagnetic hile Pr3)Q3H is paramagnetltexplain
2$) Dn the asis of valence ond theory explain the nature of
onding in the folloing complexes
i) Po6Q3 ii) Po2D4)3Q3
2) lue coloured copper sulphate solution gave folloing
experimental results Explain the same
i) With aCueous potassium chloride it gave right green solution
ii) With aCueous potassium Juoride it gave a green precipitate
2+) ra the structures of optically active isomers of Poen)3Q3H
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2) ra the geometrical and optical isomers of
i) Pol2en)2QH ii) Polen)23)Q2H
25) What is lin8age isomerism Explain ith an example
37) What are hydrate isomers Explain ith examples
31) Explain the structure of
i) upraammonium sulphate ii) Po3)Q3H
32) What are the limitations of valence ond theory
33) Explain the magnetic properties of coordination compounds
34) Write the salient features of crystal eld theory What are itslimitations
3$) Explain the octahedral geometry of complexes using crystal
eld theory
3) Write a note on colours in coordination compounds
3+) Explain the factors aecting the staility of coordination
compound3) Write rief the applications of coordination compounds
HALOGEN DERIVATIVES O ALANES AND ARENES
1) What are al8yl halides o are they classied
2) Write (- names of the folloing compounds
i)
ii) 2Al
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iii)
iv)
v)
vi) secutyl chloride
vii) neopentyl romide
viii) tutyl iodide
ix) isopropyl romide
3) o is ethyl romide prepared from
i) Ethyl alcohol ii) ethane iii) ethane
4)Write the preparation of isopropyl chloride using the folloing
reagents
i) -l3 ii) -l$ iii) l2 iv) l v) Dl2
$) o is group replaced y folloing functional rroups
i) OD ii) O iii) O iv) O2
) Write a note on
i) andmeyerBs reaction ii) Wurt= reaction iii) 6in8elstein reaction
iv) 6ittig reaction v) 6riedel raft reaction
+) (dentify and in the folloing
8112019 Chemistry Question 12sci (1)
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) Give the structures of the folloing compounds
i) 3romo2methyl pentane ii) 2romo3ethyl hexane iii) 1
holo utane
iv) pichloroen=ene v) 1lt1lt10richloroethane
5) student has performed an experiment in the laoratory e
mixed ater ith hexane and found to layers separated econd
time he mixed chloroform ith ater and he again found to
layers in the test tue Explain hich ill e upper layer and
hich one ill e loer layer in oth the experiments
17) onvert 1hloroutane into the folloing compounds
i) utane1ol ii) 1(odoutane iii) 3222 iv)
11) 6or each pair of compoundslt state hich compound is etter
2 sustrate
i) 2romoutanelt isopropyl romide ii) 1(odo2lt2dimethyl
propane or isopropyl iodide
12) hoose the memer that ill react faster from the folloing
pairs y 1 mechanism
13) -redict the expected product of sustitution reaction
i) isoutyl chloride mH sodium ethoxide
ii) nutyl chloride H sodium
iii) 1hloro propane H aC potassium hydroxide
iv) aniline H aD2gt l
14) Write the products
i) $22A2 H r L
ii) $A2 H r
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iii)
iv)
v)
1$) (dentify the chiral and achiral molecules
i)
ii)
iii)
1) iscuss 2 mechanism of methyl romide using aCueous
FD ra energy prole diagram1+) Write the mechanism of the reaction hen tutyl chloride is
treated ith aCueous FD ith energy prole diagram
1) ierentiate eteen 1 and 2 mechanism
15) Explain the nature of ond in
i) 322 ii)
27) What are uses of
i) 0 ii) (odoform iii) hloroform iv) aron tetrachloride
21) l8yl halides are polar and miscile ith aterlt explain
22) Which one of the folloing is more easily hydrolysed y
aCueous FD
$l$ and $2l
23) rrange the folloing groups in descending order 2lt D3lt
D3lt DD and l
24) ssign or conguration to each of the folloing
structures
8112019 Chemistry Question 12sci (1)
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i)
ii)
iii)
iv)
DDlt -ED E0E
1) What are alcohols o are they classied
2) What are monohydric alcohols o are they classied
4) Write the structures of folloing alcohols
i) 1Ethylcyclohexanol ii) ex3en2ol iii)yclohex2en1ol
iv) -entane1lt4diol
v) 2lt4imethylhexane1lt3lt$triol
$) Explain the folloing
i) -ropan1ol has higher oiling point than nutane
ii) ampethanol is more solule in ater than -ropan1ol
) Write the mechanism of hydration of ethylene to ethyl alcohol
+) -ropan1ol can not e prepared y acid catalyst hydration of
propenelt then ho is propene converted into propan1ol
)5) o is propanone converted into
i) -ropan2ol ii) 2ampethyl propan2ol
17) o ill you otain utan2ol from
8112019 Chemistry Question 12sci (1)
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i) -ropanal ii) utan2one iii) ut2ene
11) o is propan1ol prepared from
i) -ropanal ii) -ropanoic acid
12) o is cyclopentanol prepared from
i) yclopentanone ii) yclopentene
14) Write the mechanism of acid catalysed dehydration of ethanol
to give ethane
1$) Write the structure of aldehyde lt caroxylic acid and ester
that yield folloing alcohol
1+) o ill you prepare
i) 2ampethylutane1ol from an al8ene
ii) cyclohexylmethanol from a Grignard reagent
iii) 1phenylethanol from acetaldehyde
1) o are folloing conversions rought aout
i) en=yl chloride to en=yl alcohol
ii) en=yl alcohol to en=oic acid
iii) 1Ethylcyclohexanol from yclohexanone
15) What are phenols o are they classied
27)21) Give the structures and (- names of isomeric phenols
represented y the molecular formula 17D
22) o is phenol prepared from
8112019 Chemistry Question 12sci (1)
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i) hloroen=ene ii) (sopropyl en=ene iii) en=ene sulphonic
acid iv) aniline
23 ) Explain the folloing
i) -henol is more acidic than phenol
ii) onitrophenol is more acidic than ocresol
iii) pnitrophenol is less volatile than onitrophenol
24) Explain the folloing reactions of phenol
i) FoleBs reaction ii) iemer0iemann reaction
2$) ame the reagents used to convert phenol intoi) picric acid ii) 2lt4lt0riromophenol iii) en=ene iv) ophenol
sulphonic acid
2) What is the action of folloing reagents on phenol i)
romine in 2 at lo temperature
ii) ilute nitric acid at room temperature iii) oncentrated
sulphuric acid at room temperature
2+) Give distinguish test eteen phenol and ethanol
2) What are ethers o are ethers classied
25) What is metamerism Give the structure and (- name of
metamers of 2ampethoxypropane
37) Write the mechanism for acidic dehydration of ethanol
31) o is diethyl ether prepared y continuous ethericationprocess Why is the process so called
32) o ill you prepared methoxyethane from
i) l8yl halide ii) ia=omethane
33) tate the important uses of i) -henol ii) diethyl ether
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34) Write the mechanism of action of hydrogen romide on tert
utyl methyl ether
3$) Explain the folloing reactions of anisole
i) romination ii) itration iii) 6riedelrafts al8ylation iv)6riedelrafts acylation
3) Explainlt i) 0he OD group attached to aromatic ring in
phenols and ii) 0he al8oxy group in al8yl aryl ethers are ortholt
para directing and activate the aromatic ring toars electrophilic
sustitution
3+) Write the chemical eCuations for Williamson synthesis of 2
Ethoxy2methypentane starting from ethanol and 2ampethylpentan2ol
3) n organic compound ith the formula 417D3 shos
properties of ether and alcohol hen treated ith an excess of
r yields only one compound 1lt2 diromomethane Write
structural formula of ether and that of alcohol
ALDEHYDES ETONES AND CABO$YLIC
ACID
1) Write the structure and give (- names of the folloing
compounds
i) chloropropionaldehyde
ii) Rhydroxyutyraldehyde
iii) isoutyraldehyde
iv) Rmethylvaleraldehyde
8112019 Chemistry Question 12sci (1)
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v) isopropyl methyl 8etone
vi) diisopropyl 8etone
vii) mromoen=aldehyde
viii) dien=yl 8etone
ix) divinyl 8etone
x) allyl methyl 8etone
xi) ethyl phenyl 8etone
xii) nutyrophenone
2) Write the structure of folloing compounds
i) 4ampethyl3nitroen=ophenone ii) 2ampethyl4oxopentanal iii)
3Dxopentanoic acid iv) 4chloropropiophenone v) 3
ampethoxyutanal vi) 4ydroxycyclohaxane caraldehyde
3) o ill you prepare i) propiophenone from propanenitrile ii)
4chloroen=aldehyde from 4chlorotoluene iii)
yclohaxanecaraldehyde from cyclohexylmethanol iv) 4
methoxyacetophenone from anisole v) 4methylen=aldehydefrom toluene
4) rrange the folloing compounds in the increasing order of
their oiling points
i) dimethyl etherlt ethyl alcohollt propanelt acetaldehyde
ii) acetonelt npropyl alcohollt ethyl methyl alcohol and nutane
$) What is the action of hydrogen cyanide in asic medium on i)utanone ii) 2lt4dichloroen=aldehyde
) What is the action of folloing compounds on cyclohexanone in
presence of dry hydrogen chloride
i) ethyl alcohol ii) ethylene glycol
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+) Write the structure of product in the folloing reactions
i) 322D3
ii) $2D3
) Write the structures of caronyl compounds and ammonia
derivatives that comine to give folloing imines
i)
ii)
iii)
iv)v)
vi)
5) Write the chemical eCuations for aldol condensation or
anni==aro reaction that folloing compounds undergo
i) -ropanal ii) 2ampethylpropanal iii) -entanal iv) 3
ampethylutanal v) cetophenonevi) pampethoxyen=aldehyde vii) 2ampethylcyclohaxanone viii)
chloral ix) yclopentanone
x) -henyl acetaldehyde xi) 1-henylpropan1one
17) Write the structure of the maKor product of the folloing
crossed aldol condensation
i) formaldehyde and propionaldehydeii) en=aldehyde ith acetone
11) (dentify the compounds SBlt SB and SB in the folloing
reactions and rerite the complete eCuations
i)
8112019 Chemistry Question 12sci (1)
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ii)
12)o ill you eect folloing tostep conversions
i) -ropanal into utanone ii) utanone into ut2ene iii)
en=ene into mromoacetophenone iv) ex3yne into exan
3one v) en=oic acid into mnitroen=ylalcohol
13) o ill you convert en=aldehyde into folloing compounds
ampore than one steps may e reCuired
i) en=ophenone ii) en=oic acid iii) 3-henylpropan1ol iv)hydroxyphenylacetic acid
14) Give a chemical test to distinguish eteen folloing pairs of
compounds
i) Ethanal and propanone ii) -rpopanal and propanone iii)
-entane2one and pentane3one
1$) Write the structure and (- names of folloing caroxylicacids
i) ltRdimethylutanoic acid ii) Rphenylutyric acid iii) 1038389
chloromethylvaleric acid
8112019 Chemistry Question 12sci (1)
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42 o can ernst eCuation e used to sho that electrode
potential is eCual to the standard electrode potential y putting
approximate values in ernst eCuation se u2HNd half cell for
illustration
43 o are G7lt E7cell and eCuilirium constant related for a
particular reaction
44 Why is eCuilirium constant related to E7cell and not Ecell
4$ G7 for a redox reaction depends on the numer of electrons
transferred Explain
4 o does the eCuiliriumlt G7An6E7 explain that an
electrical potential is an intensive property
4+ Write shorthand notation for the cell for each of the folloing
reactions
a) u2H aC) H 2gs) H 2r L u s) H 2gr s)
) n2H aC) is oxidi=ed y r2 l)
4 rrange the folloing reducing agents in order of increasing
strength under standard state conditions 0he standard potentialsfor the reduction half reactions are given
gH aC) 7M)lt l3H aC) 1M)lt 62g) 2+M)lt l2g) 13M)lt
(2s) 7$4M)lt d2H aC) 74M)
45 rrange the folloing oxidi=ing agents in order of increasing
strength under standard state conditions 0he standard potentials
for the reduction half reactions are given
ls) 1M)lt l aC) 13M)lt us) 734M)lt 6es)744M)lt r
aC) 175M)lt is) 72M)
$7 Which species in each of the folloing pairs is etter oxidi=ing
agent under standard state conditions standard potential are
given) Give reasons for your anser
8112019 Chemistry Question 12sci (1)
httpslidepdfcomreaderfullchemistry-question-12sci-1 2238
a) r2l) 175M) or u3H 14M)
) H aC) or gH aC) 7M)
c) -2H aC) 713M) or o2H 72M)
d) l2 g) 13M) or r3H 7+4M)
$1 Which species in each of the folloing pairs is etter reducing
agent under standard conditions E7 values are given Give
reasons for your anser
a) Fs) 2353M) or ampgs) 23M)
) o2H aC) 11M) or (n s) 714M)
c) e3H aC) 11M) or 0i2H73+M)
d) gl) 7M) or is) 723M)
PROBLEMS
1 conductivity cell lled ith 771amp Fl given at 2$o the
resistance of 74ohms 0he conductivity of Fl at 2$
o
is 7777
CHEMISTRY
d f O DF EEampE0
1) What are dloc8 elements
8112019 Chemistry Question 12sci (1)
httpslidepdfcomreaderfullchemistry-question-12sci-1 2338
2) What are floc8 elements
3) Explain the meaning of
i) 0ransition series ii) (nner transition element
4) Explain the position of the folloing in periodic tale
i) dloc8 elements ii) anthanoids iii) ctinoids
$) Explain the oxidation state of 1st ro elements of transition
series
) Explain the oxidation states of lanthanoids and actinoids
+) Why do lanthanoids form coloured compounds ) Explainlt most of the transition metal compounds are
remar8aly coloured
5) Why chromium has electronic conguration 3d$ 4s1 and not 3d4
4s2
17) Why does copper sho anormal electronic conguration
11) Explainlt the trends in atomic and ionic si=es of lanthanoidsand also of 1st ro elements of transition series
12) What are actinoids
13) What are transuranic elements Write their name
14) Why transition elements sho tendency to form large numer
of complexes
1$) Explain the compounds of copper ((() are coloured ut thoseof =inc are colourless
1) o is potassium dichromate prepared from chrome ion
1+) Write the preparationlt properties and use of potassium
permanganate
8112019 Chemistry Question 12sci (1)
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1) Explainlt hy -t(M) complexes are generally octahedral hile
-t(() complexes are sCuare planar
15) ierentiate eteen lanthanoids and actinoids
27) What are chemical tins Give examples
21) Explain hy Gd3H is colourless
COORDINATION COMPOUNDS
1) What is the dierence eteen doule salt and coordinationcompounds
2) Explainlt hy 6e4)2 D4)22D) is a salt ut F 4P6e)Q is a
complex compound
3) Write the formula of the folloing complexes
i) alcium hexa cyano ferrate (()
ii) iammine dichloro platinum
iii) is ethylene diammine) dichloro iridium ((() ion
iv) -entamine caronato chromium ((() D(E
v) 0risethylene diammine ) coalt((() sulphate
vi) iamine ethylene diammine nic8el (() acetate
4) Write the rules hich are applied hile riting the formulas of
coordination compounds
$) ene the terms
i) entral metal atomgtion
ii) igand
8112019 Chemistry Question 12sci (1)
httpslidepdfcomreaderfullchemistry-question-12sci-1 2538
iii) oordination compound
iv) oordination sphere
v) oordination numer
vi) oordination polyhedral
vii) omoleptic and heteroleptic complexes
viii) harge on the complexes
ix) oordination entity
) Write (- name of the folloing complexes
i) Pr2D)4 l2QD3
ii) P-ten)l4Q
iii) F 2Pi)4Q
iv) sP6el4Q
v) rl3-y)3
vi) F 3Po2D4)3Q
vii) Por2en)2Q
viii) P-tl4Q2
ix) Po2D))en)2Q2H
x) F 3Pl2D4)3Q
+) Explain the importance of principles of additive nomenclature
) (dentify the folloing ions y a simple test forming complex
compound
i) u2H ii) i2H iii) 6e3H iv) o2H
8112019 Chemistry Question 12sci (1)
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5) Dn the asis of WernerBs theory explainlt hy coalt amine
complexlt ol343 hen treated ith gD3 solution
precipitates only one ion even though there are three ions
17) alculate the eective atomic numer E) of the centralmetal atom in the folloing compounds
i) F 3P6e)Q ii) rD)
11) Write the postulates of WernerBs theory
12) Explain the onding in ol333 and ol3$3
13) Explain stereoisomerism in metal complexes ith coordination
numer 4 and 14) Why the tetrahedral complexes do not exhiit geometrical
isomerism
1$) ra cis and trans geometrical isomers of
i) dichlororomo iodo palladium (() ion
ii) P-t(()3)2l2Q
iii) Po((()3)l3Q
iv) Po((()3)42D)lQ2H
1) ra all possile geometrical isomers of P-t(M)
3)2-y)2l2Q2H ion
1+) Write oxidation statelt coordination numer and electronic
conguration of the metal atom in the folloing complexes
i) rl3-y)3 ii) F 4Pampn)Q
1) lassify the folloing ligands into monodentatelt polydentate
and amidentate
i) 3 ii) iii) iv) v) D2 vi) ethylene diammine
vii) oxalate
8112019 Chemistry Question 12sci (1)
httpslidepdfcomreaderfullchemistry-question-12sci-1 2738
viii) triaminotriethylamine
15) ol3$32D is a pin8 solidlt the solution of this salt is also
pin8 and formed 3mol of gl ith silver nitrate solution Dn
heating pin8 solidlt it loses one ater molecule and forms purplesolid having same ratio of o3l as that of pin8 solid 0he
purple solid hen dissolved in ater and treated ith forms 1 mol
of gl ra the structure and name of the pin8 and purple
solids
27) ame the octahedral complex ions
i) Po2D4) en)2QH ii) transPr)4 3)2Q
21) ra the structures of the folloing complexes
i) Pol4Q2 ii) Pampn3)Q2H iii) P-tlQ iv) iD)4 v) Pi)4Q2
22) (n an octahedral crystal eldlt dra the gure to sho splitting
of dorital
23) What are ea8 eld and strong eld ligands What is spectro
chemical series
24) Pi)4Q2 is diamagnetic hile Pr3)Q3H is paramagnetltexplain
2$) Dn the asis of valence ond theory explain the nature of
onding in the folloing complexes
i) Po6Q3 ii) Po2D4)3Q3
2) lue coloured copper sulphate solution gave folloing
experimental results Explain the same
i) With aCueous potassium chloride it gave right green solution
ii) With aCueous potassium Juoride it gave a green precipitate
2+) ra the structures of optically active isomers of Poen)3Q3H
8112019 Chemistry Question 12sci (1)
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2) ra the geometrical and optical isomers of
i) Pol2en)2QH ii) Polen)23)Q2H
25) What is lin8age isomerism Explain ith an example
37) What are hydrate isomers Explain ith examples
31) Explain the structure of
i) upraammonium sulphate ii) Po3)Q3H
32) What are the limitations of valence ond theory
33) Explain the magnetic properties of coordination compounds
34) Write the salient features of crystal eld theory What are itslimitations
3$) Explain the octahedral geometry of complexes using crystal
eld theory
3) Write a note on colours in coordination compounds
3+) Explain the factors aecting the staility of coordination
compound3) Write rief the applications of coordination compounds
HALOGEN DERIVATIVES O ALANES AND ARENES
1) What are al8yl halides o are they classied
2) Write (- names of the folloing compounds
i)
ii) 2Al
8112019 Chemistry Question 12sci (1)
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iii)
iv)
v)
vi) secutyl chloride
vii) neopentyl romide
viii) tutyl iodide
ix) isopropyl romide
3) o is ethyl romide prepared from
i) Ethyl alcohol ii) ethane iii) ethane
4)Write the preparation of isopropyl chloride using the folloing
reagents
i) -l3 ii) -l$ iii) l2 iv) l v) Dl2
$) o is group replaced y folloing functional rroups
i) OD ii) O iii) O iv) O2
) Write a note on
i) andmeyerBs reaction ii) Wurt= reaction iii) 6in8elstein reaction
iv) 6ittig reaction v) 6riedel raft reaction
+) (dentify and in the folloing
8112019 Chemistry Question 12sci (1)
httpslidepdfcomreaderfullchemistry-question-12sci-1 3038
) Give the structures of the folloing compounds
i) 3romo2methyl pentane ii) 2romo3ethyl hexane iii) 1
holo utane
iv) pichloroen=ene v) 1lt1lt10richloroethane
5) student has performed an experiment in the laoratory e
mixed ater ith hexane and found to layers separated econd
time he mixed chloroform ith ater and he again found to
layers in the test tue Explain hich ill e upper layer and
hich one ill e loer layer in oth the experiments
17) onvert 1hloroutane into the folloing compounds
i) utane1ol ii) 1(odoutane iii) 3222 iv)
11) 6or each pair of compoundslt state hich compound is etter
2 sustrate
i) 2romoutanelt isopropyl romide ii) 1(odo2lt2dimethyl
propane or isopropyl iodide
12) hoose the memer that ill react faster from the folloing
pairs y 1 mechanism
13) -redict the expected product of sustitution reaction
i) isoutyl chloride mH sodium ethoxide
ii) nutyl chloride H sodium
iii) 1hloro propane H aC potassium hydroxide
iv) aniline H aD2gt l
14) Write the products
i) $22A2 H r L
ii) $A2 H r
8112019 Chemistry Question 12sci (1)
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iii)
iv)
v)
1$) (dentify the chiral and achiral molecules
i)
ii)
iii)
1) iscuss 2 mechanism of methyl romide using aCueous
FD ra energy prole diagram1+) Write the mechanism of the reaction hen tutyl chloride is
treated ith aCueous FD ith energy prole diagram
1) ierentiate eteen 1 and 2 mechanism
15) Explain the nature of ond in
i) 322 ii)
27) What are uses of
i) 0 ii) (odoform iii) hloroform iv) aron tetrachloride
21) l8yl halides are polar and miscile ith aterlt explain
22) Which one of the folloing is more easily hydrolysed y
aCueous FD
$l$ and $2l
23) rrange the folloing groups in descending order 2lt D3lt
D3lt DD and l
24) ssign or conguration to each of the folloing
structures
8112019 Chemistry Question 12sci (1)
httpslidepdfcomreaderfullchemistry-question-12sci-1 3238
i)
ii)
iii)
iv)
DDlt -ED E0E
1) What are alcohols o are they classied
2) What are monohydric alcohols o are they classied
4) Write the structures of folloing alcohols
i) 1Ethylcyclohexanol ii) ex3en2ol iii)yclohex2en1ol
iv) -entane1lt4diol
v) 2lt4imethylhexane1lt3lt$triol
$) Explain the folloing
i) -ropan1ol has higher oiling point than nutane
ii) ampethanol is more solule in ater than -ropan1ol
) Write the mechanism of hydration of ethylene to ethyl alcohol
+) -ropan1ol can not e prepared y acid catalyst hydration of
propenelt then ho is propene converted into propan1ol
)5) o is propanone converted into
i) -ropan2ol ii) 2ampethyl propan2ol
17) o ill you otain utan2ol from
8112019 Chemistry Question 12sci (1)
httpslidepdfcomreaderfullchemistry-question-12sci-1 3338
i) -ropanal ii) utan2one iii) ut2ene
11) o is propan1ol prepared from
i) -ropanal ii) -ropanoic acid
12) o is cyclopentanol prepared from
i) yclopentanone ii) yclopentene
14) Write the mechanism of acid catalysed dehydration of ethanol
to give ethane
1$) Write the structure of aldehyde lt caroxylic acid and ester
that yield folloing alcohol
1+) o ill you prepare
i) 2ampethylutane1ol from an al8ene
ii) cyclohexylmethanol from a Grignard reagent
iii) 1phenylethanol from acetaldehyde
1) o are folloing conversions rought aout
i) en=yl chloride to en=yl alcohol
ii) en=yl alcohol to en=oic acid
iii) 1Ethylcyclohexanol from yclohexanone
15) What are phenols o are they classied
27)21) Give the structures and (- names of isomeric phenols
represented y the molecular formula 17D
22) o is phenol prepared from
8112019 Chemistry Question 12sci (1)
httpslidepdfcomreaderfullchemistry-question-12sci-1 3438
i) hloroen=ene ii) (sopropyl en=ene iii) en=ene sulphonic
acid iv) aniline
23 ) Explain the folloing
i) -henol is more acidic than phenol
ii) onitrophenol is more acidic than ocresol
iii) pnitrophenol is less volatile than onitrophenol
24) Explain the folloing reactions of phenol
i) FoleBs reaction ii) iemer0iemann reaction
2$) ame the reagents used to convert phenol intoi) picric acid ii) 2lt4lt0riromophenol iii) en=ene iv) ophenol
sulphonic acid
2) What is the action of folloing reagents on phenol i)
romine in 2 at lo temperature
ii) ilute nitric acid at room temperature iii) oncentrated
sulphuric acid at room temperature
2+) Give distinguish test eteen phenol and ethanol
2) What are ethers o are ethers classied
25) What is metamerism Give the structure and (- name of
metamers of 2ampethoxypropane
37) Write the mechanism for acidic dehydration of ethanol
31) o is diethyl ether prepared y continuous ethericationprocess Why is the process so called
32) o ill you prepared methoxyethane from
i) l8yl halide ii) ia=omethane
33) tate the important uses of i) -henol ii) diethyl ether
8112019 Chemistry Question 12sci (1)
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34) Write the mechanism of action of hydrogen romide on tert
utyl methyl ether
3$) Explain the folloing reactions of anisole
i) romination ii) itration iii) 6riedelrafts al8ylation iv)6riedelrafts acylation
3) Explainlt i) 0he OD group attached to aromatic ring in
phenols and ii) 0he al8oxy group in al8yl aryl ethers are ortholt
para directing and activate the aromatic ring toars electrophilic
sustitution
3+) Write the chemical eCuations for Williamson synthesis of 2
Ethoxy2methypentane starting from ethanol and 2ampethylpentan2ol
3) n organic compound ith the formula 417D3 shos
properties of ether and alcohol hen treated ith an excess of
r yields only one compound 1lt2 diromomethane Write
structural formula of ether and that of alcohol
ALDEHYDES ETONES AND CABO$YLIC
ACID
1) Write the structure and give (- names of the folloing
compounds
i) chloropropionaldehyde
ii) Rhydroxyutyraldehyde
iii) isoutyraldehyde
iv) Rmethylvaleraldehyde
8112019 Chemistry Question 12sci (1)
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v) isopropyl methyl 8etone
vi) diisopropyl 8etone
vii) mromoen=aldehyde
viii) dien=yl 8etone
ix) divinyl 8etone
x) allyl methyl 8etone
xi) ethyl phenyl 8etone
xii) nutyrophenone
2) Write the structure of folloing compounds
i) 4ampethyl3nitroen=ophenone ii) 2ampethyl4oxopentanal iii)
3Dxopentanoic acid iv) 4chloropropiophenone v) 3
ampethoxyutanal vi) 4ydroxycyclohaxane caraldehyde
3) o ill you prepare i) propiophenone from propanenitrile ii)
4chloroen=aldehyde from 4chlorotoluene iii)
yclohaxanecaraldehyde from cyclohexylmethanol iv) 4
methoxyacetophenone from anisole v) 4methylen=aldehydefrom toluene
4) rrange the folloing compounds in the increasing order of
their oiling points
i) dimethyl etherlt ethyl alcohollt propanelt acetaldehyde
ii) acetonelt npropyl alcohollt ethyl methyl alcohol and nutane
$) What is the action of hydrogen cyanide in asic medium on i)utanone ii) 2lt4dichloroen=aldehyde
) What is the action of folloing compounds on cyclohexanone in
presence of dry hydrogen chloride
i) ethyl alcohol ii) ethylene glycol
8112019 Chemistry Question 12sci (1)
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+) Write the structure of product in the folloing reactions
i) 322D3
ii) $2D3
) Write the structures of caronyl compounds and ammonia
derivatives that comine to give folloing imines
i)
ii)
iii)
iv)v)
vi)
5) Write the chemical eCuations for aldol condensation or
anni==aro reaction that folloing compounds undergo
i) -ropanal ii) 2ampethylpropanal iii) -entanal iv) 3
ampethylutanal v) cetophenonevi) pampethoxyen=aldehyde vii) 2ampethylcyclohaxanone viii)
chloral ix) yclopentanone
x) -henyl acetaldehyde xi) 1-henylpropan1one
17) Write the structure of the maKor product of the folloing
crossed aldol condensation
i) formaldehyde and propionaldehydeii) en=aldehyde ith acetone
11) (dentify the compounds SBlt SB and SB in the folloing
reactions and rerite the complete eCuations
i)
8112019 Chemistry Question 12sci (1)
httpslidepdfcomreaderfullchemistry-question-12sci-1 3838
ii)
12)o ill you eect folloing tostep conversions
i) -ropanal into utanone ii) utanone into ut2ene iii)
en=ene into mromoacetophenone iv) ex3yne into exan
3one v) en=oic acid into mnitroen=ylalcohol
13) o ill you convert en=aldehyde into folloing compounds
ampore than one steps may e reCuired
i) en=ophenone ii) en=oic acid iii) 3-henylpropan1ol iv)hydroxyphenylacetic acid
14) Give a chemical test to distinguish eteen folloing pairs of
compounds
i) Ethanal and propanone ii) -rpopanal and propanone iii)
-entane2one and pentane3one
1$) Write the structure and (- names of folloing caroxylicacids
i) ltRdimethylutanoic acid ii) Rphenylutyric acid iii) 1038389
chloromethylvaleric acid
8112019 Chemistry Question 12sci (1)
httpslidepdfcomreaderfullchemistry-question-12sci-1 2238
a) r2l) 175M) or u3H 14M)
) H aC) or gH aC) 7M)
c) -2H aC) 713M) or o2H 72M)
d) l2 g) 13M) or r3H 7+4M)
$1 Which species in each of the folloing pairs is etter reducing
agent under standard conditions E7 values are given Give
reasons for your anser
a) Fs) 2353M) or ampgs) 23M)
) o2H aC) 11M) or (n s) 714M)
c) e3H aC) 11M) or 0i2H73+M)
d) gl) 7M) or is) 723M)
PROBLEMS
1 conductivity cell lled ith 771amp Fl given at 2$o the
resistance of 74ohms 0he conductivity of Fl at 2$
o
is 7777
CHEMISTRY
d f O DF EEampE0
1) What are dloc8 elements
8112019 Chemistry Question 12sci (1)
httpslidepdfcomreaderfullchemistry-question-12sci-1 2338
2) What are floc8 elements
3) Explain the meaning of
i) 0ransition series ii) (nner transition element
4) Explain the position of the folloing in periodic tale
i) dloc8 elements ii) anthanoids iii) ctinoids
$) Explain the oxidation state of 1st ro elements of transition
series
) Explain the oxidation states of lanthanoids and actinoids
+) Why do lanthanoids form coloured compounds ) Explainlt most of the transition metal compounds are
remar8aly coloured
5) Why chromium has electronic conguration 3d$ 4s1 and not 3d4
4s2
17) Why does copper sho anormal electronic conguration
11) Explainlt the trends in atomic and ionic si=es of lanthanoidsand also of 1st ro elements of transition series
12) What are actinoids
13) What are transuranic elements Write their name
14) Why transition elements sho tendency to form large numer
of complexes
1$) Explain the compounds of copper ((() are coloured ut thoseof =inc are colourless
1) o is potassium dichromate prepared from chrome ion
1+) Write the preparationlt properties and use of potassium
permanganate
8112019 Chemistry Question 12sci (1)
httpslidepdfcomreaderfullchemistry-question-12sci-1 2438
1) Explainlt hy -t(M) complexes are generally octahedral hile
-t(() complexes are sCuare planar
15) ierentiate eteen lanthanoids and actinoids
27) What are chemical tins Give examples
21) Explain hy Gd3H is colourless
COORDINATION COMPOUNDS
1) What is the dierence eteen doule salt and coordinationcompounds
2) Explainlt hy 6e4)2 D4)22D) is a salt ut F 4P6e)Q is a
complex compound
3) Write the formula of the folloing complexes
i) alcium hexa cyano ferrate (()
ii) iammine dichloro platinum
iii) is ethylene diammine) dichloro iridium ((() ion
iv) -entamine caronato chromium ((() D(E
v) 0risethylene diammine ) coalt((() sulphate
vi) iamine ethylene diammine nic8el (() acetate
4) Write the rules hich are applied hile riting the formulas of
coordination compounds
$) ene the terms
i) entral metal atomgtion
ii) igand
8112019 Chemistry Question 12sci (1)
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iii) oordination compound
iv) oordination sphere
v) oordination numer
vi) oordination polyhedral
vii) omoleptic and heteroleptic complexes
viii) harge on the complexes
ix) oordination entity
) Write (- name of the folloing complexes
i) Pr2D)4 l2QD3
ii) P-ten)l4Q
iii) F 2Pi)4Q
iv) sP6el4Q
v) rl3-y)3
vi) F 3Po2D4)3Q
vii) Por2en)2Q
viii) P-tl4Q2
ix) Po2D))en)2Q2H
x) F 3Pl2D4)3Q
+) Explain the importance of principles of additive nomenclature
) (dentify the folloing ions y a simple test forming complex
compound
i) u2H ii) i2H iii) 6e3H iv) o2H
8112019 Chemistry Question 12sci (1)
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5) Dn the asis of WernerBs theory explainlt hy coalt amine
complexlt ol343 hen treated ith gD3 solution
precipitates only one ion even though there are three ions
17) alculate the eective atomic numer E) of the centralmetal atom in the folloing compounds
i) F 3P6e)Q ii) rD)
11) Write the postulates of WernerBs theory
12) Explain the onding in ol333 and ol3$3
13) Explain stereoisomerism in metal complexes ith coordination
numer 4 and 14) Why the tetrahedral complexes do not exhiit geometrical
isomerism
1$) ra cis and trans geometrical isomers of
i) dichlororomo iodo palladium (() ion
ii) P-t(()3)2l2Q
iii) Po((()3)l3Q
iv) Po((()3)42D)lQ2H
1) ra all possile geometrical isomers of P-t(M)
3)2-y)2l2Q2H ion
1+) Write oxidation statelt coordination numer and electronic
conguration of the metal atom in the folloing complexes
i) rl3-y)3 ii) F 4Pampn)Q
1) lassify the folloing ligands into monodentatelt polydentate
and amidentate
i) 3 ii) iii) iv) v) D2 vi) ethylene diammine
vii) oxalate
8112019 Chemistry Question 12sci (1)
httpslidepdfcomreaderfullchemistry-question-12sci-1 2738
viii) triaminotriethylamine
15) ol3$32D is a pin8 solidlt the solution of this salt is also
pin8 and formed 3mol of gl ith silver nitrate solution Dn
heating pin8 solidlt it loses one ater molecule and forms purplesolid having same ratio of o3l as that of pin8 solid 0he
purple solid hen dissolved in ater and treated ith forms 1 mol
of gl ra the structure and name of the pin8 and purple
solids
27) ame the octahedral complex ions
i) Po2D4) en)2QH ii) transPr)4 3)2Q
21) ra the structures of the folloing complexes
i) Pol4Q2 ii) Pampn3)Q2H iii) P-tlQ iv) iD)4 v) Pi)4Q2
22) (n an octahedral crystal eldlt dra the gure to sho splitting
of dorital
23) What are ea8 eld and strong eld ligands What is spectro
chemical series
24) Pi)4Q2 is diamagnetic hile Pr3)Q3H is paramagnetltexplain
2$) Dn the asis of valence ond theory explain the nature of
onding in the folloing complexes
i) Po6Q3 ii) Po2D4)3Q3
2) lue coloured copper sulphate solution gave folloing
experimental results Explain the same
i) With aCueous potassium chloride it gave right green solution
ii) With aCueous potassium Juoride it gave a green precipitate
2+) ra the structures of optically active isomers of Poen)3Q3H
8112019 Chemistry Question 12sci (1)
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2) ra the geometrical and optical isomers of
i) Pol2en)2QH ii) Polen)23)Q2H
25) What is lin8age isomerism Explain ith an example
37) What are hydrate isomers Explain ith examples
31) Explain the structure of
i) upraammonium sulphate ii) Po3)Q3H
32) What are the limitations of valence ond theory
33) Explain the magnetic properties of coordination compounds
34) Write the salient features of crystal eld theory What are itslimitations
3$) Explain the octahedral geometry of complexes using crystal
eld theory
3) Write a note on colours in coordination compounds
3+) Explain the factors aecting the staility of coordination
compound3) Write rief the applications of coordination compounds
HALOGEN DERIVATIVES O ALANES AND ARENES
1) What are al8yl halides o are they classied
2) Write (- names of the folloing compounds
i)
ii) 2Al
8112019 Chemistry Question 12sci (1)
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iii)
iv)
v)
vi) secutyl chloride
vii) neopentyl romide
viii) tutyl iodide
ix) isopropyl romide
3) o is ethyl romide prepared from
i) Ethyl alcohol ii) ethane iii) ethane
4)Write the preparation of isopropyl chloride using the folloing
reagents
i) -l3 ii) -l$ iii) l2 iv) l v) Dl2
$) o is group replaced y folloing functional rroups
i) OD ii) O iii) O iv) O2
) Write a note on
i) andmeyerBs reaction ii) Wurt= reaction iii) 6in8elstein reaction
iv) 6ittig reaction v) 6riedel raft reaction
+) (dentify and in the folloing
8112019 Chemistry Question 12sci (1)
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) Give the structures of the folloing compounds
i) 3romo2methyl pentane ii) 2romo3ethyl hexane iii) 1
holo utane
iv) pichloroen=ene v) 1lt1lt10richloroethane
5) student has performed an experiment in the laoratory e
mixed ater ith hexane and found to layers separated econd
time he mixed chloroform ith ater and he again found to
layers in the test tue Explain hich ill e upper layer and
hich one ill e loer layer in oth the experiments
17) onvert 1hloroutane into the folloing compounds
i) utane1ol ii) 1(odoutane iii) 3222 iv)
11) 6or each pair of compoundslt state hich compound is etter
2 sustrate
i) 2romoutanelt isopropyl romide ii) 1(odo2lt2dimethyl
propane or isopropyl iodide
12) hoose the memer that ill react faster from the folloing
pairs y 1 mechanism
13) -redict the expected product of sustitution reaction
i) isoutyl chloride mH sodium ethoxide
ii) nutyl chloride H sodium
iii) 1hloro propane H aC potassium hydroxide
iv) aniline H aD2gt l
14) Write the products
i) $22A2 H r L
ii) $A2 H r
8112019 Chemistry Question 12sci (1)
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iii)
iv)
v)
1$) (dentify the chiral and achiral molecules
i)
ii)
iii)
1) iscuss 2 mechanism of methyl romide using aCueous
FD ra energy prole diagram1+) Write the mechanism of the reaction hen tutyl chloride is
treated ith aCueous FD ith energy prole diagram
1) ierentiate eteen 1 and 2 mechanism
15) Explain the nature of ond in
i) 322 ii)
27) What are uses of
i) 0 ii) (odoform iii) hloroform iv) aron tetrachloride
21) l8yl halides are polar and miscile ith aterlt explain
22) Which one of the folloing is more easily hydrolysed y
aCueous FD
$l$ and $2l
23) rrange the folloing groups in descending order 2lt D3lt
D3lt DD and l
24) ssign or conguration to each of the folloing
structures
8112019 Chemistry Question 12sci (1)
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i)
ii)
iii)
iv)
DDlt -ED E0E
1) What are alcohols o are they classied
2) What are monohydric alcohols o are they classied
4) Write the structures of folloing alcohols
i) 1Ethylcyclohexanol ii) ex3en2ol iii)yclohex2en1ol
iv) -entane1lt4diol
v) 2lt4imethylhexane1lt3lt$triol
$) Explain the folloing
i) -ropan1ol has higher oiling point than nutane
ii) ampethanol is more solule in ater than -ropan1ol
) Write the mechanism of hydration of ethylene to ethyl alcohol
+) -ropan1ol can not e prepared y acid catalyst hydration of
propenelt then ho is propene converted into propan1ol
)5) o is propanone converted into
i) -ropan2ol ii) 2ampethyl propan2ol
17) o ill you otain utan2ol from
8112019 Chemistry Question 12sci (1)
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i) -ropanal ii) utan2one iii) ut2ene
11) o is propan1ol prepared from
i) -ropanal ii) -ropanoic acid
12) o is cyclopentanol prepared from
i) yclopentanone ii) yclopentene
14) Write the mechanism of acid catalysed dehydration of ethanol
to give ethane
1$) Write the structure of aldehyde lt caroxylic acid and ester
that yield folloing alcohol
1+) o ill you prepare
i) 2ampethylutane1ol from an al8ene
ii) cyclohexylmethanol from a Grignard reagent
iii) 1phenylethanol from acetaldehyde
1) o are folloing conversions rought aout
i) en=yl chloride to en=yl alcohol
ii) en=yl alcohol to en=oic acid
iii) 1Ethylcyclohexanol from yclohexanone
15) What are phenols o are they classied
27)21) Give the structures and (- names of isomeric phenols
represented y the molecular formula 17D
22) o is phenol prepared from
8112019 Chemistry Question 12sci (1)
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i) hloroen=ene ii) (sopropyl en=ene iii) en=ene sulphonic
acid iv) aniline
23 ) Explain the folloing
i) -henol is more acidic than phenol
ii) onitrophenol is more acidic than ocresol
iii) pnitrophenol is less volatile than onitrophenol
24) Explain the folloing reactions of phenol
i) FoleBs reaction ii) iemer0iemann reaction
2$) ame the reagents used to convert phenol intoi) picric acid ii) 2lt4lt0riromophenol iii) en=ene iv) ophenol
sulphonic acid
2) What is the action of folloing reagents on phenol i)
romine in 2 at lo temperature
ii) ilute nitric acid at room temperature iii) oncentrated
sulphuric acid at room temperature
2+) Give distinguish test eteen phenol and ethanol
2) What are ethers o are ethers classied
25) What is metamerism Give the structure and (- name of
metamers of 2ampethoxypropane
37) Write the mechanism for acidic dehydration of ethanol
31) o is diethyl ether prepared y continuous ethericationprocess Why is the process so called
32) o ill you prepared methoxyethane from
i) l8yl halide ii) ia=omethane
33) tate the important uses of i) -henol ii) diethyl ether
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34) Write the mechanism of action of hydrogen romide on tert
utyl methyl ether
3$) Explain the folloing reactions of anisole
i) romination ii) itration iii) 6riedelrafts al8ylation iv)6riedelrafts acylation
3) Explainlt i) 0he OD group attached to aromatic ring in
phenols and ii) 0he al8oxy group in al8yl aryl ethers are ortholt
para directing and activate the aromatic ring toars electrophilic
sustitution
3+) Write the chemical eCuations for Williamson synthesis of 2
Ethoxy2methypentane starting from ethanol and 2ampethylpentan2ol
3) n organic compound ith the formula 417D3 shos
properties of ether and alcohol hen treated ith an excess of
r yields only one compound 1lt2 diromomethane Write
structural formula of ether and that of alcohol
ALDEHYDES ETONES AND CABO$YLIC
ACID
1) Write the structure and give (- names of the folloing
compounds
i) chloropropionaldehyde
ii) Rhydroxyutyraldehyde
iii) isoutyraldehyde
iv) Rmethylvaleraldehyde
8112019 Chemistry Question 12sci (1)
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v) isopropyl methyl 8etone
vi) diisopropyl 8etone
vii) mromoen=aldehyde
viii) dien=yl 8etone
ix) divinyl 8etone
x) allyl methyl 8etone
xi) ethyl phenyl 8etone
xii) nutyrophenone
2) Write the structure of folloing compounds
i) 4ampethyl3nitroen=ophenone ii) 2ampethyl4oxopentanal iii)
3Dxopentanoic acid iv) 4chloropropiophenone v) 3
ampethoxyutanal vi) 4ydroxycyclohaxane caraldehyde
3) o ill you prepare i) propiophenone from propanenitrile ii)
4chloroen=aldehyde from 4chlorotoluene iii)
yclohaxanecaraldehyde from cyclohexylmethanol iv) 4
methoxyacetophenone from anisole v) 4methylen=aldehydefrom toluene
4) rrange the folloing compounds in the increasing order of
their oiling points
i) dimethyl etherlt ethyl alcohollt propanelt acetaldehyde
ii) acetonelt npropyl alcohollt ethyl methyl alcohol and nutane
$) What is the action of hydrogen cyanide in asic medium on i)utanone ii) 2lt4dichloroen=aldehyde
) What is the action of folloing compounds on cyclohexanone in
presence of dry hydrogen chloride
i) ethyl alcohol ii) ethylene glycol
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+) Write the structure of product in the folloing reactions
i) 322D3
ii) $2D3
) Write the structures of caronyl compounds and ammonia
derivatives that comine to give folloing imines
i)
ii)
iii)
iv)v)
vi)
5) Write the chemical eCuations for aldol condensation or
anni==aro reaction that folloing compounds undergo
i) -ropanal ii) 2ampethylpropanal iii) -entanal iv) 3
ampethylutanal v) cetophenonevi) pampethoxyen=aldehyde vii) 2ampethylcyclohaxanone viii)
chloral ix) yclopentanone
x) -henyl acetaldehyde xi) 1-henylpropan1one
17) Write the structure of the maKor product of the folloing
crossed aldol condensation
i) formaldehyde and propionaldehydeii) en=aldehyde ith acetone
11) (dentify the compounds SBlt SB and SB in the folloing
reactions and rerite the complete eCuations
i)
8112019 Chemistry Question 12sci (1)
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ii)
12)o ill you eect folloing tostep conversions
i) -ropanal into utanone ii) utanone into ut2ene iii)
en=ene into mromoacetophenone iv) ex3yne into exan
3one v) en=oic acid into mnitroen=ylalcohol
13) o ill you convert en=aldehyde into folloing compounds
ampore than one steps may e reCuired
i) en=ophenone ii) en=oic acid iii) 3-henylpropan1ol iv)hydroxyphenylacetic acid
14) Give a chemical test to distinguish eteen folloing pairs of
compounds
i) Ethanal and propanone ii) -rpopanal and propanone iii)
-entane2one and pentane3one
1$) Write the structure and (- names of folloing caroxylicacids
i) ltRdimethylutanoic acid ii) Rphenylutyric acid iii) 1038389
chloromethylvaleric acid
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2) What are floc8 elements
3) Explain the meaning of
i) 0ransition series ii) (nner transition element
4) Explain the position of the folloing in periodic tale
i) dloc8 elements ii) anthanoids iii) ctinoids
$) Explain the oxidation state of 1st ro elements of transition
series
) Explain the oxidation states of lanthanoids and actinoids
+) Why do lanthanoids form coloured compounds ) Explainlt most of the transition metal compounds are
remar8aly coloured
5) Why chromium has electronic conguration 3d$ 4s1 and not 3d4
4s2
17) Why does copper sho anormal electronic conguration
11) Explainlt the trends in atomic and ionic si=es of lanthanoidsand also of 1st ro elements of transition series
12) What are actinoids
13) What are transuranic elements Write their name
14) Why transition elements sho tendency to form large numer
of complexes
1$) Explain the compounds of copper ((() are coloured ut thoseof =inc are colourless
1) o is potassium dichromate prepared from chrome ion
1+) Write the preparationlt properties and use of potassium
permanganate
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1) Explainlt hy -t(M) complexes are generally octahedral hile
-t(() complexes are sCuare planar
15) ierentiate eteen lanthanoids and actinoids
27) What are chemical tins Give examples
21) Explain hy Gd3H is colourless
COORDINATION COMPOUNDS
1) What is the dierence eteen doule salt and coordinationcompounds
2) Explainlt hy 6e4)2 D4)22D) is a salt ut F 4P6e)Q is a
complex compound
3) Write the formula of the folloing complexes
i) alcium hexa cyano ferrate (()
ii) iammine dichloro platinum
iii) is ethylene diammine) dichloro iridium ((() ion
iv) -entamine caronato chromium ((() D(E
v) 0risethylene diammine ) coalt((() sulphate
vi) iamine ethylene diammine nic8el (() acetate
4) Write the rules hich are applied hile riting the formulas of
coordination compounds
$) ene the terms
i) entral metal atomgtion
ii) igand
8112019 Chemistry Question 12sci (1)
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iii) oordination compound
iv) oordination sphere
v) oordination numer
vi) oordination polyhedral
vii) omoleptic and heteroleptic complexes
viii) harge on the complexes
ix) oordination entity
) Write (- name of the folloing complexes
i) Pr2D)4 l2QD3
ii) P-ten)l4Q
iii) F 2Pi)4Q
iv) sP6el4Q
v) rl3-y)3
vi) F 3Po2D4)3Q
vii) Por2en)2Q
viii) P-tl4Q2
ix) Po2D))en)2Q2H
x) F 3Pl2D4)3Q
+) Explain the importance of principles of additive nomenclature
) (dentify the folloing ions y a simple test forming complex
compound
i) u2H ii) i2H iii) 6e3H iv) o2H
8112019 Chemistry Question 12sci (1)
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5) Dn the asis of WernerBs theory explainlt hy coalt amine
complexlt ol343 hen treated ith gD3 solution
precipitates only one ion even though there are three ions
17) alculate the eective atomic numer E) of the centralmetal atom in the folloing compounds
i) F 3P6e)Q ii) rD)
11) Write the postulates of WernerBs theory
12) Explain the onding in ol333 and ol3$3
13) Explain stereoisomerism in metal complexes ith coordination
numer 4 and 14) Why the tetrahedral complexes do not exhiit geometrical
isomerism
1$) ra cis and trans geometrical isomers of
i) dichlororomo iodo palladium (() ion
ii) P-t(()3)2l2Q
iii) Po((()3)l3Q
iv) Po((()3)42D)lQ2H
1) ra all possile geometrical isomers of P-t(M)
3)2-y)2l2Q2H ion
1+) Write oxidation statelt coordination numer and electronic
conguration of the metal atom in the folloing complexes
i) rl3-y)3 ii) F 4Pampn)Q
1) lassify the folloing ligands into monodentatelt polydentate
and amidentate
i) 3 ii) iii) iv) v) D2 vi) ethylene diammine
vii) oxalate
8112019 Chemistry Question 12sci (1)
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viii) triaminotriethylamine
15) ol3$32D is a pin8 solidlt the solution of this salt is also
pin8 and formed 3mol of gl ith silver nitrate solution Dn
heating pin8 solidlt it loses one ater molecule and forms purplesolid having same ratio of o3l as that of pin8 solid 0he
purple solid hen dissolved in ater and treated ith forms 1 mol
of gl ra the structure and name of the pin8 and purple
solids
27) ame the octahedral complex ions
i) Po2D4) en)2QH ii) transPr)4 3)2Q
21) ra the structures of the folloing complexes
i) Pol4Q2 ii) Pampn3)Q2H iii) P-tlQ iv) iD)4 v) Pi)4Q2
22) (n an octahedral crystal eldlt dra the gure to sho splitting
of dorital
23) What are ea8 eld and strong eld ligands What is spectro
chemical series
24) Pi)4Q2 is diamagnetic hile Pr3)Q3H is paramagnetltexplain
2$) Dn the asis of valence ond theory explain the nature of
onding in the folloing complexes
i) Po6Q3 ii) Po2D4)3Q3
2) lue coloured copper sulphate solution gave folloing
experimental results Explain the same
i) With aCueous potassium chloride it gave right green solution
ii) With aCueous potassium Juoride it gave a green precipitate
2+) ra the structures of optically active isomers of Poen)3Q3H
8112019 Chemistry Question 12sci (1)
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2) ra the geometrical and optical isomers of
i) Pol2en)2QH ii) Polen)23)Q2H
25) What is lin8age isomerism Explain ith an example
37) What are hydrate isomers Explain ith examples
31) Explain the structure of
i) upraammonium sulphate ii) Po3)Q3H
32) What are the limitations of valence ond theory
33) Explain the magnetic properties of coordination compounds
34) Write the salient features of crystal eld theory What are itslimitations
3$) Explain the octahedral geometry of complexes using crystal
eld theory
3) Write a note on colours in coordination compounds
3+) Explain the factors aecting the staility of coordination
compound3) Write rief the applications of coordination compounds
HALOGEN DERIVATIVES O ALANES AND ARENES
1) What are al8yl halides o are they classied
2) Write (- names of the folloing compounds
i)
ii) 2Al
8112019 Chemistry Question 12sci (1)
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iii)
iv)
v)
vi) secutyl chloride
vii) neopentyl romide
viii) tutyl iodide
ix) isopropyl romide
3) o is ethyl romide prepared from
i) Ethyl alcohol ii) ethane iii) ethane
4)Write the preparation of isopropyl chloride using the folloing
reagents
i) -l3 ii) -l$ iii) l2 iv) l v) Dl2
$) o is group replaced y folloing functional rroups
i) OD ii) O iii) O iv) O2
) Write a note on
i) andmeyerBs reaction ii) Wurt= reaction iii) 6in8elstein reaction
iv) 6ittig reaction v) 6riedel raft reaction
+) (dentify and in the folloing
8112019 Chemistry Question 12sci (1)
httpslidepdfcomreaderfullchemistry-question-12sci-1 3038
) Give the structures of the folloing compounds
i) 3romo2methyl pentane ii) 2romo3ethyl hexane iii) 1
holo utane
iv) pichloroen=ene v) 1lt1lt10richloroethane
5) student has performed an experiment in the laoratory e
mixed ater ith hexane and found to layers separated econd
time he mixed chloroform ith ater and he again found to
layers in the test tue Explain hich ill e upper layer and
hich one ill e loer layer in oth the experiments
17) onvert 1hloroutane into the folloing compounds
i) utane1ol ii) 1(odoutane iii) 3222 iv)
11) 6or each pair of compoundslt state hich compound is etter
2 sustrate
i) 2romoutanelt isopropyl romide ii) 1(odo2lt2dimethyl
propane or isopropyl iodide
12) hoose the memer that ill react faster from the folloing
pairs y 1 mechanism
13) -redict the expected product of sustitution reaction
i) isoutyl chloride mH sodium ethoxide
ii) nutyl chloride H sodium
iii) 1hloro propane H aC potassium hydroxide
iv) aniline H aD2gt l
14) Write the products
i) $22A2 H r L
ii) $A2 H r
8112019 Chemistry Question 12sci (1)
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iii)
iv)
v)
1$) (dentify the chiral and achiral molecules
i)
ii)
iii)
1) iscuss 2 mechanism of methyl romide using aCueous
FD ra energy prole diagram1+) Write the mechanism of the reaction hen tutyl chloride is
treated ith aCueous FD ith energy prole diagram
1) ierentiate eteen 1 and 2 mechanism
15) Explain the nature of ond in
i) 322 ii)
27) What are uses of
i) 0 ii) (odoform iii) hloroform iv) aron tetrachloride
21) l8yl halides are polar and miscile ith aterlt explain
22) Which one of the folloing is more easily hydrolysed y
aCueous FD
$l$ and $2l
23) rrange the folloing groups in descending order 2lt D3lt
D3lt DD and l
24) ssign or conguration to each of the folloing
structures
8112019 Chemistry Question 12sci (1)
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i)
ii)
iii)
iv)
DDlt -ED E0E
1) What are alcohols o are they classied
2) What are monohydric alcohols o are they classied
4) Write the structures of folloing alcohols
i) 1Ethylcyclohexanol ii) ex3en2ol iii)yclohex2en1ol
iv) -entane1lt4diol
v) 2lt4imethylhexane1lt3lt$triol
$) Explain the folloing
i) -ropan1ol has higher oiling point than nutane
ii) ampethanol is more solule in ater than -ropan1ol
) Write the mechanism of hydration of ethylene to ethyl alcohol
+) -ropan1ol can not e prepared y acid catalyst hydration of
propenelt then ho is propene converted into propan1ol
)5) o is propanone converted into
i) -ropan2ol ii) 2ampethyl propan2ol
17) o ill you otain utan2ol from
8112019 Chemistry Question 12sci (1)
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i) -ropanal ii) utan2one iii) ut2ene
11) o is propan1ol prepared from
i) -ropanal ii) -ropanoic acid
12) o is cyclopentanol prepared from
i) yclopentanone ii) yclopentene
14) Write the mechanism of acid catalysed dehydration of ethanol
to give ethane
1$) Write the structure of aldehyde lt caroxylic acid and ester
that yield folloing alcohol
1+) o ill you prepare
i) 2ampethylutane1ol from an al8ene
ii) cyclohexylmethanol from a Grignard reagent
iii) 1phenylethanol from acetaldehyde
1) o are folloing conversions rought aout
i) en=yl chloride to en=yl alcohol
ii) en=yl alcohol to en=oic acid
iii) 1Ethylcyclohexanol from yclohexanone
15) What are phenols o are they classied
27)21) Give the structures and (- names of isomeric phenols
represented y the molecular formula 17D
22) o is phenol prepared from
8112019 Chemistry Question 12sci (1)
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i) hloroen=ene ii) (sopropyl en=ene iii) en=ene sulphonic
acid iv) aniline
23 ) Explain the folloing
i) -henol is more acidic than phenol
ii) onitrophenol is more acidic than ocresol
iii) pnitrophenol is less volatile than onitrophenol
24) Explain the folloing reactions of phenol
i) FoleBs reaction ii) iemer0iemann reaction
2$) ame the reagents used to convert phenol intoi) picric acid ii) 2lt4lt0riromophenol iii) en=ene iv) ophenol
sulphonic acid
2) What is the action of folloing reagents on phenol i)
romine in 2 at lo temperature
ii) ilute nitric acid at room temperature iii) oncentrated
sulphuric acid at room temperature
2+) Give distinguish test eteen phenol and ethanol
2) What are ethers o are ethers classied
25) What is metamerism Give the structure and (- name of
metamers of 2ampethoxypropane
37) Write the mechanism for acidic dehydration of ethanol
31) o is diethyl ether prepared y continuous ethericationprocess Why is the process so called
32) o ill you prepared methoxyethane from
i) l8yl halide ii) ia=omethane
33) tate the important uses of i) -henol ii) diethyl ether
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34) Write the mechanism of action of hydrogen romide on tert
utyl methyl ether
3$) Explain the folloing reactions of anisole
i) romination ii) itration iii) 6riedelrafts al8ylation iv)6riedelrafts acylation
3) Explainlt i) 0he OD group attached to aromatic ring in
phenols and ii) 0he al8oxy group in al8yl aryl ethers are ortholt
para directing and activate the aromatic ring toars electrophilic
sustitution
3+) Write the chemical eCuations for Williamson synthesis of 2
Ethoxy2methypentane starting from ethanol and 2ampethylpentan2ol
3) n organic compound ith the formula 417D3 shos
properties of ether and alcohol hen treated ith an excess of
r yields only one compound 1lt2 diromomethane Write
structural formula of ether and that of alcohol
ALDEHYDES ETONES AND CABO$YLIC
ACID
1) Write the structure and give (- names of the folloing
compounds
i) chloropropionaldehyde
ii) Rhydroxyutyraldehyde
iii) isoutyraldehyde
iv) Rmethylvaleraldehyde
8112019 Chemistry Question 12sci (1)
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v) isopropyl methyl 8etone
vi) diisopropyl 8etone
vii) mromoen=aldehyde
viii) dien=yl 8etone
ix) divinyl 8etone
x) allyl methyl 8etone
xi) ethyl phenyl 8etone
xii) nutyrophenone
2) Write the structure of folloing compounds
i) 4ampethyl3nitroen=ophenone ii) 2ampethyl4oxopentanal iii)
3Dxopentanoic acid iv) 4chloropropiophenone v) 3
ampethoxyutanal vi) 4ydroxycyclohaxane caraldehyde
3) o ill you prepare i) propiophenone from propanenitrile ii)
4chloroen=aldehyde from 4chlorotoluene iii)
yclohaxanecaraldehyde from cyclohexylmethanol iv) 4
methoxyacetophenone from anisole v) 4methylen=aldehydefrom toluene
4) rrange the folloing compounds in the increasing order of
their oiling points
i) dimethyl etherlt ethyl alcohollt propanelt acetaldehyde
ii) acetonelt npropyl alcohollt ethyl methyl alcohol and nutane
$) What is the action of hydrogen cyanide in asic medium on i)utanone ii) 2lt4dichloroen=aldehyde
) What is the action of folloing compounds on cyclohexanone in
presence of dry hydrogen chloride
i) ethyl alcohol ii) ethylene glycol
8112019 Chemistry Question 12sci (1)
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+) Write the structure of product in the folloing reactions
i) 322D3
ii) $2D3
) Write the structures of caronyl compounds and ammonia
derivatives that comine to give folloing imines
i)
ii)
iii)
iv)v)
vi)
5) Write the chemical eCuations for aldol condensation or
anni==aro reaction that folloing compounds undergo
i) -ropanal ii) 2ampethylpropanal iii) -entanal iv) 3
ampethylutanal v) cetophenonevi) pampethoxyen=aldehyde vii) 2ampethylcyclohaxanone viii)
chloral ix) yclopentanone
x) -henyl acetaldehyde xi) 1-henylpropan1one
17) Write the structure of the maKor product of the folloing
crossed aldol condensation
i) formaldehyde and propionaldehydeii) en=aldehyde ith acetone
11) (dentify the compounds SBlt SB and SB in the folloing
reactions and rerite the complete eCuations
i)
8112019 Chemistry Question 12sci (1)
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ii)
12)o ill you eect folloing tostep conversions
i) -ropanal into utanone ii) utanone into ut2ene iii)
en=ene into mromoacetophenone iv) ex3yne into exan
3one v) en=oic acid into mnitroen=ylalcohol
13) o ill you convert en=aldehyde into folloing compounds
ampore than one steps may e reCuired
i) en=ophenone ii) en=oic acid iii) 3-henylpropan1ol iv)hydroxyphenylacetic acid
14) Give a chemical test to distinguish eteen folloing pairs of
compounds
i) Ethanal and propanone ii) -rpopanal and propanone iii)
-entane2one and pentane3one
1$) Write the structure and (- names of folloing caroxylicacids
i) ltRdimethylutanoic acid ii) Rphenylutyric acid iii) 1038389
chloromethylvaleric acid
8112019 Chemistry Question 12sci (1)
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1) Explainlt hy -t(M) complexes are generally octahedral hile
-t(() complexes are sCuare planar
15) ierentiate eteen lanthanoids and actinoids
27) What are chemical tins Give examples
21) Explain hy Gd3H is colourless
COORDINATION COMPOUNDS
1) What is the dierence eteen doule salt and coordinationcompounds
2) Explainlt hy 6e4)2 D4)22D) is a salt ut F 4P6e)Q is a
complex compound
3) Write the formula of the folloing complexes
i) alcium hexa cyano ferrate (()
ii) iammine dichloro platinum
iii) is ethylene diammine) dichloro iridium ((() ion
iv) -entamine caronato chromium ((() D(E
v) 0risethylene diammine ) coalt((() sulphate
vi) iamine ethylene diammine nic8el (() acetate
4) Write the rules hich are applied hile riting the formulas of
coordination compounds
$) ene the terms
i) entral metal atomgtion
ii) igand
8112019 Chemistry Question 12sci (1)
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iii) oordination compound
iv) oordination sphere
v) oordination numer
vi) oordination polyhedral
vii) omoleptic and heteroleptic complexes
viii) harge on the complexes
ix) oordination entity
) Write (- name of the folloing complexes
i) Pr2D)4 l2QD3
ii) P-ten)l4Q
iii) F 2Pi)4Q
iv) sP6el4Q
v) rl3-y)3
vi) F 3Po2D4)3Q
vii) Por2en)2Q
viii) P-tl4Q2
ix) Po2D))en)2Q2H
x) F 3Pl2D4)3Q
+) Explain the importance of principles of additive nomenclature
) (dentify the folloing ions y a simple test forming complex
compound
i) u2H ii) i2H iii) 6e3H iv) o2H
8112019 Chemistry Question 12sci (1)
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5) Dn the asis of WernerBs theory explainlt hy coalt amine
complexlt ol343 hen treated ith gD3 solution
precipitates only one ion even though there are three ions
17) alculate the eective atomic numer E) of the centralmetal atom in the folloing compounds
i) F 3P6e)Q ii) rD)
11) Write the postulates of WernerBs theory
12) Explain the onding in ol333 and ol3$3
13) Explain stereoisomerism in metal complexes ith coordination
numer 4 and 14) Why the tetrahedral complexes do not exhiit geometrical
isomerism
1$) ra cis and trans geometrical isomers of
i) dichlororomo iodo palladium (() ion
ii) P-t(()3)2l2Q
iii) Po((()3)l3Q
iv) Po((()3)42D)lQ2H
1) ra all possile geometrical isomers of P-t(M)
3)2-y)2l2Q2H ion
1+) Write oxidation statelt coordination numer and electronic
conguration of the metal atom in the folloing complexes
i) rl3-y)3 ii) F 4Pampn)Q
1) lassify the folloing ligands into monodentatelt polydentate
and amidentate
i) 3 ii) iii) iv) v) D2 vi) ethylene diammine
vii) oxalate
8112019 Chemistry Question 12sci (1)
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viii) triaminotriethylamine
15) ol3$32D is a pin8 solidlt the solution of this salt is also
pin8 and formed 3mol of gl ith silver nitrate solution Dn
heating pin8 solidlt it loses one ater molecule and forms purplesolid having same ratio of o3l as that of pin8 solid 0he
purple solid hen dissolved in ater and treated ith forms 1 mol
of gl ra the structure and name of the pin8 and purple
solids
27) ame the octahedral complex ions
i) Po2D4) en)2QH ii) transPr)4 3)2Q
21) ra the structures of the folloing complexes
i) Pol4Q2 ii) Pampn3)Q2H iii) P-tlQ iv) iD)4 v) Pi)4Q2
22) (n an octahedral crystal eldlt dra the gure to sho splitting
of dorital
23) What are ea8 eld and strong eld ligands What is spectro
chemical series
24) Pi)4Q2 is diamagnetic hile Pr3)Q3H is paramagnetltexplain
2$) Dn the asis of valence ond theory explain the nature of
onding in the folloing complexes
i) Po6Q3 ii) Po2D4)3Q3
2) lue coloured copper sulphate solution gave folloing
experimental results Explain the same
i) With aCueous potassium chloride it gave right green solution
ii) With aCueous potassium Juoride it gave a green precipitate
2+) ra the structures of optically active isomers of Poen)3Q3H
8112019 Chemistry Question 12sci (1)
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2) ra the geometrical and optical isomers of
i) Pol2en)2QH ii) Polen)23)Q2H
25) What is lin8age isomerism Explain ith an example
37) What are hydrate isomers Explain ith examples
31) Explain the structure of
i) upraammonium sulphate ii) Po3)Q3H
32) What are the limitations of valence ond theory
33) Explain the magnetic properties of coordination compounds
34) Write the salient features of crystal eld theory What are itslimitations
3$) Explain the octahedral geometry of complexes using crystal
eld theory
3) Write a note on colours in coordination compounds
3+) Explain the factors aecting the staility of coordination
compound3) Write rief the applications of coordination compounds
HALOGEN DERIVATIVES O ALANES AND ARENES
1) What are al8yl halides o are they classied
2) Write (- names of the folloing compounds
i)
ii) 2Al
8112019 Chemistry Question 12sci (1)
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iii)
iv)
v)
vi) secutyl chloride
vii) neopentyl romide
viii) tutyl iodide
ix) isopropyl romide
3) o is ethyl romide prepared from
i) Ethyl alcohol ii) ethane iii) ethane
4)Write the preparation of isopropyl chloride using the folloing
reagents
i) -l3 ii) -l$ iii) l2 iv) l v) Dl2
$) o is group replaced y folloing functional rroups
i) OD ii) O iii) O iv) O2
) Write a note on
i) andmeyerBs reaction ii) Wurt= reaction iii) 6in8elstein reaction
iv) 6ittig reaction v) 6riedel raft reaction
+) (dentify and in the folloing
8112019 Chemistry Question 12sci (1)
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) Give the structures of the folloing compounds
i) 3romo2methyl pentane ii) 2romo3ethyl hexane iii) 1
holo utane
iv) pichloroen=ene v) 1lt1lt10richloroethane
5) student has performed an experiment in the laoratory e
mixed ater ith hexane and found to layers separated econd
time he mixed chloroform ith ater and he again found to
layers in the test tue Explain hich ill e upper layer and
hich one ill e loer layer in oth the experiments
17) onvert 1hloroutane into the folloing compounds
i) utane1ol ii) 1(odoutane iii) 3222 iv)
11) 6or each pair of compoundslt state hich compound is etter
2 sustrate
i) 2romoutanelt isopropyl romide ii) 1(odo2lt2dimethyl
propane or isopropyl iodide
12) hoose the memer that ill react faster from the folloing
pairs y 1 mechanism
13) -redict the expected product of sustitution reaction
i) isoutyl chloride mH sodium ethoxide
ii) nutyl chloride H sodium
iii) 1hloro propane H aC potassium hydroxide
iv) aniline H aD2gt l
14) Write the products
i) $22A2 H r L
ii) $A2 H r
8112019 Chemistry Question 12sci (1)
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iii)
iv)
v)
1$) (dentify the chiral and achiral molecules
i)
ii)
iii)
1) iscuss 2 mechanism of methyl romide using aCueous
FD ra energy prole diagram1+) Write the mechanism of the reaction hen tutyl chloride is
treated ith aCueous FD ith energy prole diagram
1) ierentiate eteen 1 and 2 mechanism
15) Explain the nature of ond in
i) 322 ii)
27) What are uses of
i) 0 ii) (odoform iii) hloroform iv) aron tetrachloride
21) l8yl halides are polar and miscile ith aterlt explain
22) Which one of the folloing is more easily hydrolysed y
aCueous FD
$l$ and $2l
23) rrange the folloing groups in descending order 2lt D3lt
D3lt DD and l
24) ssign or conguration to each of the folloing
structures
8112019 Chemistry Question 12sci (1)
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i)
ii)
iii)
iv)
DDlt -ED E0E
1) What are alcohols o are they classied
2) What are monohydric alcohols o are they classied
4) Write the structures of folloing alcohols
i) 1Ethylcyclohexanol ii) ex3en2ol iii)yclohex2en1ol
iv) -entane1lt4diol
v) 2lt4imethylhexane1lt3lt$triol
$) Explain the folloing
i) -ropan1ol has higher oiling point than nutane
ii) ampethanol is more solule in ater than -ropan1ol
) Write the mechanism of hydration of ethylene to ethyl alcohol
+) -ropan1ol can not e prepared y acid catalyst hydration of
propenelt then ho is propene converted into propan1ol
)5) o is propanone converted into
i) -ropan2ol ii) 2ampethyl propan2ol
17) o ill you otain utan2ol from
8112019 Chemistry Question 12sci (1)
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i) -ropanal ii) utan2one iii) ut2ene
11) o is propan1ol prepared from
i) -ropanal ii) -ropanoic acid
12) o is cyclopentanol prepared from
i) yclopentanone ii) yclopentene
14) Write the mechanism of acid catalysed dehydration of ethanol
to give ethane
1$) Write the structure of aldehyde lt caroxylic acid and ester
that yield folloing alcohol
1+) o ill you prepare
i) 2ampethylutane1ol from an al8ene
ii) cyclohexylmethanol from a Grignard reagent
iii) 1phenylethanol from acetaldehyde
1) o are folloing conversions rought aout
i) en=yl chloride to en=yl alcohol
ii) en=yl alcohol to en=oic acid
iii) 1Ethylcyclohexanol from yclohexanone
15) What are phenols o are they classied
27)21) Give the structures and (- names of isomeric phenols
represented y the molecular formula 17D
22) o is phenol prepared from
8112019 Chemistry Question 12sci (1)
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i) hloroen=ene ii) (sopropyl en=ene iii) en=ene sulphonic
acid iv) aniline
23 ) Explain the folloing
i) -henol is more acidic than phenol
ii) onitrophenol is more acidic than ocresol
iii) pnitrophenol is less volatile than onitrophenol
24) Explain the folloing reactions of phenol
i) FoleBs reaction ii) iemer0iemann reaction
2$) ame the reagents used to convert phenol intoi) picric acid ii) 2lt4lt0riromophenol iii) en=ene iv) ophenol
sulphonic acid
2) What is the action of folloing reagents on phenol i)
romine in 2 at lo temperature
ii) ilute nitric acid at room temperature iii) oncentrated
sulphuric acid at room temperature
2+) Give distinguish test eteen phenol and ethanol
2) What are ethers o are ethers classied
25) What is metamerism Give the structure and (- name of
metamers of 2ampethoxypropane
37) Write the mechanism for acidic dehydration of ethanol
31) o is diethyl ether prepared y continuous ethericationprocess Why is the process so called
32) o ill you prepared methoxyethane from
i) l8yl halide ii) ia=omethane
33) tate the important uses of i) -henol ii) diethyl ether
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34) Write the mechanism of action of hydrogen romide on tert
utyl methyl ether
3$) Explain the folloing reactions of anisole
i) romination ii) itration iii) 6riedelrafts al8ylation iv)6riedelrafts acylation
3) Explainlt i) 0he OD group attached to aromatic ring in
phenols and ii) 0he al8oxy group in al8yl aryl ethers are ortholt
para directing and activate the aromatic ring toars electrophilic
sustitution
3+) Write the chemical eCuations for Williamson synthesis of 2
Ethoxy2methypentane starting from ethanol and 2ampethylpentan2ol
3) n organic compound ith the formula 417D3 shos
properties of ether and alcohol hen treated ith an excess of
r yields only one compound 1lt2 diromomethane Write
structural formula of ether and that of alcohol
ALDEHYDES ETONES AND CABO$YLIC
ACID
1) Write the structure and give (- names of the folloing
compounds
i) chloropropionaldehyde
ii) Rhydroxyutyraldehyde
iii) isoutyraldehyde
iv) Rmethylvaleraldehyde
8112019 Chemistry Question 12sci (1)
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v) isopropyl methyl 8etone
vi) diisopropyl 8etone
vii) mromoen=aldehyde
viii) dien=yl 8etone
ix) divinyl 8etone
x) allyl methyl 8etone
xi) ethyl phenyl 8etone
xii) nutyrophenone
2) Write the structure of folloing compounds
i) 4ampethyl3nitroen=ophenone ii) 2ampethyl4oxopentanal iii)
3Dxopentanoic acid iv) 4chloropropiophenone v) 3
ampethoxyutanal vi) 4ydroxycyclohaxane caraldehyde
3) o ill you prepare i) propiophenone from propanenitrile ii)
4chloroen=aldehyde from 4chlorotoluene iii)
yclohaxanecaraldehyde from cyclohexylmethanol iv) 4
methoxyacetophenone from anisole v) 4methylen=aldehydefrom toluene
4) rrange the folloing compounds in the increasing order of
their oiling points
i) dimethyl etherlt ethyl alcohollt propanelt acetaldehyde
ii) acetonelt npropyl alcohollt ethyl methyl alcohol and nutane
$) What is the action of hydrogen cyanide in asic medium on i)utanone ii) 2lt4dichloroen=aldehyde
) What is the action of folloing compounds on cyclohexanone in
presence of dry hydrogen chloride
i) ethyl alcohol ii) ethylene glycol
8112019 Chemistry Question 12sci (1)
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+) Write the structure of product in the folloing reactions
i) 322D3
ii) $2D3
) Write the structures of caronyl compounds and ammonia
derivatives that comine to give folloing imines
i)
ii)
iii)
iv)v)
vi)
5) Write the chemical eCuations for aldol condensation or
anni==aro reaction that folloing compounds undergo
i) -ropanal ii) 2ampethylpropanal iii) -entanal iv) 3
ampethylutanal v) cetophenonevi) pampethoxyen=aldehyde vii) 2ampethylcyclohaxanone viii)
chloral ix) yclopentanone
x) -henyl acetaldehyde xi) 1-henylpropan1one
17) Write the structure of the maKor product of the folloing
crossed aldol condensation
i) formaldehyde and propionaldehydeii) en=aldehyde ith acetone
11) (dentify the compounds SBlt SB and SB in the folloing
reactions and rerite the complete eCuations
i)
8112019 Chemistry Question 12sci (1)
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ii)
12)o ill you eect folloing tostep conversions
i) -ropanal into utanone ii) utanone into ut2ene iii)
en=ene into mromoacetophenone iv) ex3yne into exan
3one v) en=oic acid into mnitroen=ylalcohol
13) o ill you convert en=aldehyde into folloing compounds
ampore than one steps may e reCuired
i) en=ophenone ii) en=oic acid iii) 3-henylpropan1ol iv)hydroxyphenylacetic acid
14) Give a chemical test to distinguish eteen folloing pairs of
compounds
i) Ethanal and propanone ii) -rpopanal and propanone iii)
-entane2one and pentane3one
1$) Write the structure and (- names of folloing caroxylicacids
i) ltRdimethylutanoic acid ii) Rphenylutyric acid iii) 1038389
chloromethylvaleric acid
8112019 Chemistry Question 12sci (1)
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iii) oordination compound
iv) oordination sphere
v) oordination numer
vi) oordination polyhedral
vii) omoleptic and heteroleptic complexes
viii) harge on the complexes
ix) oordination entity
) Write (- name of the folloing complexes
i) Pr2D)4 l2QD3
ii) P-ten)l4Q
iii) F 2Pi)4Q
iv) sP6el4Q
v) rl3-y)3
vi) F 3Po2D4)3Q
vii) Por2en)2Q
viii) P-tl4Q2
ix) Po2D))en)2Q2H
x) F 3Pl2D4)3Q
+) Explain the importance of principles of additive nomenclature
) (dentify the folloing ions y a simple test forming complex
compound
i) u2H ii) i2H iii) 6e3H iv) o2H
8112019 Chemistry Question 12sci (1)
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5) Dn the asis of WernerBs theory explainlt hy coalt amine
complexlt ol343 hen treated ith gD3 solution
precipitates only one ion even though there are three ions
17) alculate the eective atomic numer E) of the centralmetal atom in the folloing compounds
i) F 3P6e)Q ii) rD)
11) Write the postulates of WernerBs theory
12) Explain the onding in ol333 and ol3$3
13) Explain stereoisomerism in metal complexes ith coordination
numer 4 and 14) Why the tetrahedral complexes do not exhiit geometrical
isomerism
1$) ra cis and trans geometrical isomers of
i) dichlororomo iodo palladium (() ion
ii) P-t(()3)2l2Q
iii) Po((()3)l3Q
iv) Po((()3)42D)lQ2H
1) ra all possile geometrical isomers of P-t(M)
3)2-y)2l2Q2H ion
1+) Write oxidation statelt coordination numer and electronic
conguration of the metal atom in the folloing complexes
i) rl3-y)3 ii) F 4Pampn)Q
1) lassify the folloing ligands into monodentatelt polydentate
and amidentate
i) 3 ii) iii) iv) v) D2 vi) ethylene diammine
vii) oxalate
8112019 Chemistry Question 12sci (1)
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viii) triaminotriethylamine
15) ol3$32D is a pin8 solidlt the solution of this salt is also
pin8 and formed 3mol of gl ith silver nitrate solution Dn
heating pin8 solidlt it loses one ater molecule and forms purplesolid having same ratio of o3l as that of pin8 solid 0he
purple solid hen dissolved in ater and treated ith forms 1 mol
of gl ra the structure and name of the pin8 and purple
solids
27) ame the octahedral complex ions
i) Po2D4) en)2QH ii) transPr)4 3)2Q
21) ra the structures of the folloing complexes
i) Pol4Q2 ii) Pampn3)Q2H iii) P-tlQ iv) iD)4 v) Pi)4Q2
22) (n an octahedral crystal eldlt dra the gure to sho splitting
of dorital
23) What are ea8 eld and strong eld ligands What is spectro
chemical series
24) Pi)4Q2 is diamagnetic hile Pr3)Q3H is paramagnetltexplain
2$) Dn the asis of valence ond theory explain the nature of
onding in the folloing complexes
i) Po6Q3 ii) Po2D4)3Q3
2) lue coloured copper sulphate solution gave folloing
experimental results Explain the same
i) With aCueous potassium chloride it gave right green solution
ii) With aCueous potassium Juoride it gave a green precipitate
2+) ra the structures of optically active isomers of Poen)3Q3H
8112019 Chemistry Question 12sci (1)
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2) ra the geometrical and optical isomers of
i) Pol2en)2QH ii) Polen)23)Q2H
25) What is lin8age isomerism Explain ith an example
37) What are hydrate isomers Explain ith examples
31) Explain the structure of
i) upraammonium sulphate ii) Po3)Q3H
32) What are the limitations of valence ond theory
33) Explain the magnetic properties of coordination compounds
34) Write the salient features of crystal eld theory What are itslimitations
3$) Explain the octahedral geometry of complexes using crystal
eld theory
3) Write a note on colours in coordination compounds
3+) Explain the factors aecting the staility of coordination
compound3) Write rief the applications of coordination compounds
HALOGEN DERIVATIVES O ALANES AND ARENES
1) What are al8yl halides o are they classied
2) Write (- names of the folloing compounds
i)
ii) 2Al
8112019 Chemistry Question 12sci (1)
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iii)
iv)
v)
vi) secutyl chloride
vii) neopentyl romide
viii) tutyl iodide
ix) isopropyl romide
3) o is ethyl romide prepared from
i) Ethyl alcohol ii) ethane iii) ethane
4)Write the preparation of isopropyl chloride using the folloing
reagents
i) -l3 ii) -l$ iii) l2 iv) l v) Dl2
$) o is group replaced y folloing functional rroups
i) OD ii) O iii) O iv) O2
) Write a note on
i) andmeyerBs reaction ii) Wurt= reaction iii) 6in8elstein reaction
iv) 6ittig reaction v) 6riedel raft reaction
+) (dentify and in the folloing
8112019 Chemistry Question 12sci (1)
httpslidepdfcomreaderfullchemistry-question-12sci-1 3038
) Give the structures of the folloing compounds
i) 3romo2methyl pentane ii) 2romo3ethyl hexane iii) 1
holo utane
iv) pichloroen=ene v) 1lt1lt10richloroethane
5) student has performed an experiment in the laoratory e
mixed ater ith hexane and found to layers separated econd
time he mixed chloroform ith ater and he again found to
layers in the test tue Explain hich ill e upper layer and
hich one ill e loer layer in oth the experiments
17) onvert 1hloroutane into the folloing compounds
i) utane1ol ii) 1(odoutane iii) 3222 iv)
11) 6or each pair of compoundslt state hich compound is etter
2 sustrate
i) 2romoutanelt isopropyl romide ii) 1(odo2lt2dimethyl
propane or isopropyl iodide
12) hoose the memer that ill react faster from the folloing
pairs y 1 mechanism
13) -redict the expected product of sustitution reaction
i) isoutyl chloride mH sodium ethoxide
ii) nutyl chloride H sodium
iii) 1hloro propane H aC potassium hydroxide
iv) aniline H aD2gt l
14) Write the products
i) $22A2 H r L
ii) $A2 H r
8112019 Chemistry Question 12sci (1)
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iii)
iv)
v)
1$) (dentify the chiral and achiral molecules
i)
ii)
iii)
1) iscuss 2 mechanism of methyl romide using aCueous
FD ra energy prole diagram1+) Write the mechanism of the reaction hen tutyl chloride is
treated ith aCueous FD ith energy prole diagram
1) ierentiate eteen 1 and 2 mechanism
15) Explain the nature of ond in
i) 322 ii)
27) What are uses of
i) 0 ii) (odoform iii) hloroform iv) aron tetrachloride
21) l8yl halides are polar and miscile ith aterlt explain
22) Which one of the folloing is more easily hydrolysed y
aCueous FD
$l$ and $2l
23) rrange the folloing groups in descending order 2lt D3lt
D3lt DD and l
24) ssign or conguration to each of the folloing
structures
8112019 Chemistry Question 12sci (1)
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i)
ii)
iii)
iv)
DDlt -ED E0E
1) What are alcohols o are they classied
2) What are monohydric alcohols o are they classied
4) Write the structures of folloing alcohols
i) 1Ethylcyclohexanol ii) ex3en2ol iii)yclohex2en1ol
iv) -entane1lt4diol
v) 2lt4imethylhexane1lt3lt$triol
$) Explain the folloing
i) -ropan1ol has higher oiling point than nutane
ii) ampethanol is more solule in ater than -ropan1ol
) Write the mechanism of hydration of ethylene to ethyl alcohol
+) -ropan1ol can not e prepared y acid catalyst hydration of
propenelt then ho is propene converted into propan1ol
)5) o is propanone converted into
i) -ropan2ol ii) 2ampethyl propan2ol
17) o ill you otain utan2ol from
8112019 Chemistry Question 12sci (1)
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i) -ropanal ii) utan2one iii) ut2ene
11) o is propan1ol prepared from
i) -ropanal ii) -ropanoic acid
12) o is cyclopentanol prepared from
i) yclopentanone ii) yclopentene
14) Write the mechanism of acid catalysed dehydration of ethanol
to give ethane
1$) Write the structure of aldehyde lt caroxylic acid and ester
that yield folloing alcohol
1+) o ill you prepare
i) 2ampethylutane1ol from an al8ene
ii) cyclohexylmethanol from a Grignard reagent
iii) 1phenylethanol from acetaldehyde
1) o are folloing conversions rought aout
i) en=yl chloride to en=yl alcohol
ii) en=yl alcohol to en=oic acid
iii) 1Ethylcyclohexanol from yclohexanone
15) What are phenols o are they classied
27)21) Give the structures and (- names of isomeric phenols
represented y the molecular formula 17D
22) o is phenol prepared from
8112019 Chemistry Question 12sci (1)
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i) hloroen=ene ii) (sopropyl en=ene iii) en=ene sulphonic
acid iv) aniline
23 ) Explain the folloing
i) -henol is more acidic than phenol
ii) onitrophenol is more acidic than ocresol
iii) pnitrophenol is less volatile than onitrophenol
24) Explain the folloing reactions of phenol
i) FoleBs reaction ii) iemer0iemann reaction
2$) ame the reagents used to convert phenol intoi) picric acid ii) 2lt4lt0riromophenol iii) en=ene iv) ophenol
sulphonic acid
2) What is the action of folloing reagents on phenol i)
romine in 2 at lo temperature
ii) ilute nitric acid at room temperature iii) oncentrated
sulphuric acid at room temperature
2+) Give distinguish test eteen phenol and ethanol
2) What are ethers o are ethers classied
25) What is metamerism Give the structure and (- name of
metamers of 2ampethoxypropane
37) Write the mechanism for acidic dehydration of ethanol
31) o is diethyl ether prepared y continuous ethericationprocess Why is the process so called
32) o ill you prepared methoxyethane from
i) l8yl halide ii) ia=omethane
33) tate the important uses of i) -henol ii) diethyl ether
8112019 Chemistry Question 12sci (1)
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34) Write the mechanism of action of hydrogen romide on tert
utyl methyl ether
3$) Explain the folloing reactions of anisole
i) romination ii) itration iii) 6riedelrafts al8ylation iv)6riedelrafts acylation
3) Explainlt i) 0he OD group attached to aromatic ring in
phenols and ii) 0he al8oxy group in al8yl aryl ethers are ortholt
para directing and activate the aromatic ring toars electrophilic
sustitution
3+) Write the chemical eCuations for Williamson synthesis of 2
Ethoxy2methypentane starting from ethanol and 2ampethylpentan2ol
3) n organic compound ith the formula 417D3 shos
properties of ether and alcohol hen treated ith an excess of
r yields only one compound 1lt2 diromomethane Write
structural formula of ether and that of alcohol
ALDEHYDES ETONES AND CABO$YLIC
ACID
1) Write the structure and give (- names of the folloing
compounds
i) chloropropionaldehyde
ii) Rhydroxyutyraldehyde
iii) isoutyraldehyde
iv) Rmethylvaleraldehyde
8112019 Chemistry Question 12sci (1)
httpslidepdfcomreaderfullchemistry-question-12sci-1 3638
v) isopropyl methyl 8etone
vi) diisopropyl 8etone
vii) mromoen=aldehyde
viii) dien=yl 8etone
ix) divinyl 8etone
x) allyl methyl 8etone
xi) ethyl phenyl 8etone
xii) nutyrophenone
2) Write the structure of folloing compounds
i) 4ampethyl3nitroen=ophenone ii) 2ampethyl4oxopentanal iii)
3Dxopentanoic acid iv) 4chloropropiophenone v) 3
ampethoxyutanal vi) 4ydroxycyclohaxane caraldehyde
3) o ill you prepare i) propiophenone from propanenitrile ii)
4chloroen=aldehyde from 4chlorotoluene iii)
yclohaxanecaraldehyde from cyclohexylmethanol iv) 4
methoxyacetophenone from anisole v) 4methylen=aldehydefrom toluene
4) rrange the folloing compounds in the increasing order of
their oiling points
i) dimethyl etherlt ethyl alcohollt propanelt acetaldehyde
ii) acetonelt npropyl alcohollt ethyl methyl alcohol and nutane
$) What is the action of hydrogen cyanide in asic medium on i)utanone ii) 2lt4dichloroen=aldehyde
) What is the action of folloing compounds on cyclohexanone in
presence of dry hydrogen chloride
i) ethyl alcohol ii) ethylene glycol
8112019 Chemistry Question 12sci (1)
httpslidepdfcomreaderfullchemistry-question-12sci-1 3738
+) Write the structure of product in the folloing reactions
i) 322D3
ii) $2D3
) Write the structures of caronyl compounds and ammonia
derivatives that comine to give folloing imines
i)
ii)
iii)
iv)v)
vi)
5) Write the chemical eCuations for aldol condensation or
anni==aro reaction that folloing compounds undergo
i) -ropanal ii) 2ampethylpropanal iii) -entanal iv) 3
ampethylutanal v) cetophenonevi) pampethoxyen=aldehyde vii) 2ampethylcyclohaxanone viii)
chloral ix) yclopentanone
x) -henyl acetaldehyde xi) 1-henylpropan1one
17) Write the structure of the maKor product of the folloing
crossed aldol condensation
i) formaldehyde and propionaldehydeii) en=aldehyde ith acetone
11) (dentify the compounds SBlt SB and SB in the folloing
reactions and rerite the complete eCuations
i)
8112019 Chemistry Question 12sci (1)
httpslidepdfcomreaderfullchemistry-question-12sci-1 3838
ii)
12)o ill you eect folloing tostep conversions
i) -ropanal into utanone ii) utanone into ut2ene iii)
en=ene into mromoacetophenone iv) ex3yne into exan
3one v) en=oic acid into mnitroen=ylalcohol
13) o ill you convert en=aldehyde into folloing compounds
ampore than one steps may e reCuired
i) en=ophenone ii) en=oic acid iii) 3-henylpropan1ol iv)hydroxyphenylacetic acid
14) Give a chemical test to distinguish eteen folloing pairs of
compounds
i) Ethanal and propanone ii) -rpopanal and propanone iii)
-entane2one and pentane3one
1$) Write the structure and (- names of folloing caroxylicacids
i) ltRdimethylutanoic acid ii) Rphenylutyric acid iii) 1038389
chloromethylvaleric acid
8112019 Chemistry Question 12sci (1)
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5) Dn the asis of WernerBs theory explainlt hy coalt amine
complexlt ol343 hen treated ith gD3 solution
precipitates only one ion even though there are three ions
17) alculate the eective atomic numer E) of the centralmetal atom in the folloing compounds
i) F 3P6e)Q ii) rD)
11) Write the postulates of WernerBs theory
12) Explain the onding in ol333 and ol3$3
13) Explain stereoisomerism in metal complexes ith coordination
numer 4 and 14) Why the tetrahedral complexes do not exhiit geometrical
isomerism
1$) ra cis and trans geometrical isomers of
i) dichlororomo iodo palladium (() ion
ii) P-t(()3)2l2Q
iii) Po((()3)l3Q
iv) Po((()3)42D)lQ2H
1) ra all possile geometrical isomers of P-t(M)
3)2-y)2l2Q2H ion
1+) Write oxidation statelt coordination numer and electronic
conguration of the metal atom in the folloing complexes
i) rl3-y)3 ii) F 4Pampn)Q
1) lassify the folloing ligands into monodentatelt polydentate
and amidentate
i) 3 ii) iii) iv) v) D2 vi) ethylene diammine
vii) oxalate
8112019 Chemistry Question 12sci (1)
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viii) triaminotriethylamine
15) ol3$32D is a pin8 solidlt the solution of this salt is also
pin8 and formed 3mol of gl ith silver nitrate solution Dn
heating pin8 solidlt it loses one ater molecule and forms purplesolid having same ratio of o3l as that of pin8 solid 0he
purple solid hen dissolved in ater and treated ith forms 1 mol
of gl ra the structure and name of the pin8 and purple
solids
27) ame the octahedral complex ions
i) Po2D4) en)2QH ii) transPr)4 3)2Q
21) ra the structures of the folloing complexes
i) Pol4Q2 ii) Pampn3)Q2H iii) P-tlQ iv) iD)4 v) Pi)4Q2
22) (n an octahedral crystal eldlt dra the gure to sho splitting
of dorital
23) What are ea8 eld and strong eld ligands What is spectro
chemical series
24) Pi)4Q2 is diamagnetic hile Pr3)Q3H is paramagnetltexplain
2$) Dn the asis of valence ond theory explain the nature of
onding in the folloing complexes
i) Po6Q3 ii) Po2D4)3Q3
2) lue coloured copper sulphate solution gave folloing
experimental results Explain the same
i) With aCueous potassium chloride it gave right green solution
ii) With aCueous potassium Juoride it gave a green precipitate
2+) ra the structures of optically active isomers of Poen)3Q3H
8112019 Chemistry Question 12sci (1)
httpslidepdfcomreaderfullchemistry-question-12sci-1 2838
2) ra the geometrical and optical isomers of
i) Pol2en)2QH ii) Polen)23)Q2H
25) What is lin8age isomerism Explain ith an example
37) What are hydrate isomers Explain ith examples
31) Explain the structure of
i) upraammonium sulphate ii) Po3)Q3H
32) What are the limitations of valence ond theory
33) Explain the magnetic properties of coordination compounds
34) Write the salient features of crystal eld theory What are itslimitations
3$) Explain the octahedral geometry of complexes using crystal
eld theory
3) Write a note on colours in coordination compounds
3+) Explain the factors aecting the staility of coordination
compound3) Write rief the applications of coordination compounds
HALOGEN DERIVATIVES O ALANES AND ARENES
1) What are al8yl halides o are they classied
2) Write (- names of the folloing compounds
i)
ii) 2Al
8112019 Chemistry Question 12sci (1)
httpslidepdfcomreaderfullchemistry-question-12sci-1 2938
iii)
iv)
v)
vi) secutyl chloride
vii) neopentyl romide
viii) tutyl iodide
ix) isopropyl romide
3) o is ethyl romide prepared from
i) Ethyl alcohol ii) ethane iii) ethane
4)Write the preparation of isopropyl chloride using the folloing
reagents
i) -l3 ii) -l$ iii) l2 iv) l v) Dl2
$) o is group replaced y folloing functional rroups
i) OD ii) O iii) O iv) O2
) Write a note on
i) andmeyerBs reaction ii) Wurt= reaction iii) 6in8elstein reaction
iv) 6ittig reaction v) 6riedel raft reaction
+) (dentify and in the folloing
8112019 Chemistry Question 12sci (1)
httpslidepdfcomreaderfullchemistry-question-12sci-1 3038
) Give the structures of the folloing compounds
i) 3romo2methyl pentane ii) 2romo3ethyl hexane iii) 1
holo utane
iv) pichloroen=ene v) 1lt1lt10richloroethane
5) student has performed an experiment in the laoratory e
mixed ater ith hexane and found to layers separated econd
time he mixed chloroform ith ater and he again found to
layers in the test tue Explain hich ill e upper layer and
hich one ill e loer layer in oth the experiments
17) onvert 1hloroutane into the folloing compounds
i) utane1ol ii) 1(odoutane iii) 3222 iv)
11) 6or each pair of compoundslt state hich compound is etter
2 sustrate
i) 2romoutanelt isopropyl romide ii) 1(odo2lt2dimethyl
propane or isopropyl iodide
12) hoose the memer that ill react faster from the folloing
pairs y 1 mechanism
13) -redict the expected product of sustitution reaction
i) isoutyl chloride mH sodium ethoxide
ii) nutyl chloride H sodium
iii) 1hloro propane H aC potassium hydroxide
iv) aniline H aD2gt l
14) Write the products
i) $22A2 H r L
ii) $A2 H r
8112019 Chemistry Question 12sci (1)
httpslidepdfcomreaderfullchemistry-question-12sci-1 3138
iii)
iv)
v)
1$) (dentify the chiral and achiral molecules
i)
ii)
iii)
1) iscuss 2 mechanism of methyl romide using aCueous
FD ra energy prole diagram1+) Write the mechanism of the reaction hen tutyl chloride is
treated ith aCueous FD ith energy prole diagram
1) ierentiate eteen 1 and 2 mechanism
15) Explain the nature of ond in
i) 322 ii)
27) What are uses of
i) 0 ii) (odoform iii) hloroform iv) aron tetrachloride
21) l8yl halides are polar and miscile ith aterlt explain
22) Which one of the folloing is more easily hydrolysed y
aCueous FD
$l$ and $2l
23) rrange the folloing groups in descending order 2lt D3lt
D3lt DD and l
24) ssign or conguration to each of the folloing
structures
8112019 Chemistry Question 12sci (1)
httpslidepdfcomreaderfullchemistry-question-12sci-1 3238
i)
ii)
iii)
iv)
DDlt -ED E0E
1) What are alcohols o are they classied
2) What are monohydric alcohols o are they classied
4) Write the structures of folloing alcohols
i) 1Ethylcyclohexanol ii) ex3en2ol iii)yclohex2en1ol
iv) -entane1lt4diol
v) 2lt4imethylhexane1lt3lt$triol
$) Explain the folloing
i) -ropan1ol has higher oiling point than nutane
ii) ampethanol is more solule in ater than -ropan1ol
) Write the mechanism of hydration of ethylene to ethyl alcohol
+) -ropan1ol can not e prepared y acid catalyst hydration of
propenelt then ho is propene converted into propan1ol
)5) o is propanone converted into
i) -ropan2ol ii) 2ampethyl propan2ol
17) o ill you otain utan2ol from
8112019 Chemistry Question 12sci (1)
httpslidepdfcomreaderfullchemistry-question-12sci-1 3338
i) -ropanal ii) utan2one iii) ut2ene
11) o is propan1ol prepared from
i) -ropanal ii) -ropanoic acid
12) o is cyclopentanol prepared from
i) yclopentanone ii) yclopentene
14) Write the mechanism of acid catalysed dehydration of ethanol
to give ethane
1$) Write the structure of aldehyde lt caroxylic acid and ester
that yield folloing alcohol
1+) o ill you prepare
i) 2ampethylutane1ol from an al8ene
ii) cyclohexylmethanol from a Grignard reagent
iii) 1phenylethanol from acetaldehyde
1) o are folloing conversions rought aout
i) en=yl chloride to en=yl alcohol
ii) en=yl alcohol to en=oic acid
iii) 1Ethylcyclohexanol from yclohexanone
15) What are phenols o are they classied
27)21) Give the structures and (- names of isomeric phenols
represented y the molecular formula 17D
22) o is phenol prepared from
8112019 Chemistry Question 12sci (1)
httpslidepdfcomreaderfullchemistry-question-12sci-1 3438
i) hloroen=ene ii) (sopropyl en=ene iii) en=ene sulphonic
acid iv) aniline
23 ) Explain the folloing
i) -henol is more acidic than phenol
ii) onitrophenol is more acidic than ocresol
iii) pnitrophenol is less volatile than onitrophenol
24) Explain the folloing reactions of phenol
i) FoleBs reaction ii) iemer0iemann reaction
2$) ame the reagents used to convert phenol intoi) picric acid ii) 2lt4lt0riromophenol iii) en=ene iv) ophenol
sulphonic acid
2) What is the action of folloing reagents on phenol i)
romine in 2 at lo temperature
ii) ilute nitric acid at room temperature iii) oncentrated
sulphuric acid at room temperature
2+) Give distinguish test eteen phenol and ethanol
2) What are ethers o are ethers classied
25) What is metamerism Give the structure and (- name of
metamers of 2ampethoxypropane
37) Write the mechanism for acidic dehydration of ethanol
31) o is diethyl ether prepared y continuous ethericationprocess Why is the process so called
32) o ill you prepared methoxyethane from
i) l8yl halide ii) ia=omethane
33) tate the important uses of i) -henol ii) diethyl ether
8112019 Chemistry Question 12sci (1)
httpslidepdfcomreaderfullchemistry-question-12sci-1 3538
34) Write the mechanism of action of hydrogen romide on tert
utyl methyl ether
3$) Explain the folloing reactions of anisole
i) romination ii) itration iii) 6riedelrafts al8ylation iv)6riedelrafts acylation
3) Explainlt i) 0he OD group attached to aromatic ring in
phenols and ii) 0he al8oxy group in al8yl aryl ethers are ortholt
para directing and activate the aromatic ring toars electrophilic
sustitution
3+) Write the chemical eCuations for Williamson synthesis of 2
Ethoxy2methypentane starting from ethanol and 2ampethylpentan2ol
3) n organic compound ith the formula 417D3 shos
properties of ether and alcohol hen treated ith an excess of
r yields only one compound 1lt2 diromomethane Write
structural formula of ether and that of alcohol
ALDEHYDES ETONES AND CABO$YLIC
ACID
1) Write the structure and give (- names of the folloing
compounds
i) chloropropionaldehyde
ii) Rhydroxyutyraldehyde
iii) isoutyraldehyde
iv) Rmethylvaleraldehyde
8112019 Chemistry Question 12sci (1)
httpslidepdfcomreaderfullchemistry-question-12sci-1 3638
v) isopropyl methyl 8etone
vi) diisopropyl 8etone
vii) mromoen=aldehyde
viii) dien=yl 8etone
ix) divinyl 8etone
x) allyl methyl 8etone
xi) ethyl phenyl 8etone
xii) nutyrophenone
2) Write the structure of folloing compounds
i) 4ampethyl3nitroen=ophenone ii) 2ampethyl4oxopentanal iii)
3Dxopentanoic acid iv) 4chloropropiophenone v) 3
ampethoxyutanal vi) 4ydroxycyclohaxane caraldehyde
3) o ill you prepare i) propiophenone from propanenitrile ii)
4chloroen=aldehyde from 4chlorotoluene iii)
yclohaxanecaraldehyde from cyclohexylmethanol iv) 4
methoxyacetophenone from anisole v) 4methylen=aldehydefrom toluene
4) rrange the folloing compounds in the increasing order of
their oiling points
i) dimethyl etherlt ethyl alcohollt propanelt acetaldehyde
ii) acetonelt npropyl alcohollt ethyl methyl alcohol and nutane
$) What is the action of hydrogen cyanide in asic medium on i)utanone ii) 2lt4dichloroen=aldehyde
) What is the action of folloing compounds on cyclohexanone in
presence of dry hydrogen chloride
i) ethyl alcohol ii) ethylene glycol
8112019 Chemistry Question 12sci (1)
httpslidepdfcomreaderfullchemistry-question-12sci-1 3738
+) Write the structure of product in the folloing reactions
i) 322D3
ii) $2D3
) Write the structures of caronyl compounds and ammonia
derivatives that comine to give folloing imines
i)
ii)
iii)
iv)v)
vi)
5) Write the chemical eCuations for aldol condensation or
anni==aro reaction that folloing compounds undergo
i) -ropanal ii) 2ampethylpropanal iii) -entanal iv) 3
ampethylutanal v) cetophenonevi) pampethoxyen=aldehyde vii) 2ampethylcyclohaxanone viii)
chloral ix) yclopentanone
x) -henyl acetaldehyde xi) 1-henylpropan1one
17) Write the structure of the maKor product of the folloing
crossed aldol condensation
i) formaldehyde and propionaldehydeii) en=aldehyde ith acetone
11) (dentify the compounds SBlt SB and SB in the folloing
reactions and rerite the complete eCuations
i)
8112019 Chemistry Question 12sci (1)
httpslidepdfcomreaderfullchemistry-question-12sci-1 3838
ii)
12)o ill you eect folloing tostep conversions
i) -ropanal into utanone ii) utanone into ut2ene iii)
en=ene into mromoacetophenone iv) ex3yne into exan
3one v) en=oic acid into mnitroen=ylalcohol
13) o ill you convert en=aldehyde into folloing compounds
ampore than one steps may e reCuired
i) en=ophenone ii) en=oic acid iii) 3-henylpropan1ol iv)hydroxyphenylacetic acid
14) Give a chemical test to distinguish eteen folloing pairs of
compounds
i) Ethanal and propanone ii) -rpopanal and propanone iii)
-entane2one and pentane3one
1$) Write the structure and (- names of folloing caroxylicacids
i) ltRdimethylutanoic acid ii) Rphenylutyric acid iii) 1038389
chloromethylvaleric acid
8112019 Chemistry Question 12sci (1)
httpslidepdfcomreaderfullchemistry-question-12sci-1 2738
viii) triaminotriethylamine
15) ol3$32D is a pin8 solidlt the solution of this salt is also
pin8 and formed 3mol of gl ith silver nitrate solution Dn
heating pin8 solidlt it loses one ater molecule and forms purplesolid having same ratio of o3l as that of pin8 solid 0he
purple solid hen dissolved in ater and treated ith forms 1 mol
of gl ra the structure and name of the pin8 and purple
solids
27) ame the octahedral complex ions
i) Po2D4) en)2QH ii) transPr)4 3)2Q
21) ra the structures of the folloing complexes
i) Pol4Q2 ii) Pampn3)Q2H iii) P-tlQ iv) iD)4 v) Pi)4Q2
22) (n an octahedral crystal eldlt dra the gure to sho splitting
of dorital
23) What are ea8 eld and strong eld ligands What is spectro
chemical series
24) Pi)4Q2 is diamagnetic hile Pr3)Q3H is paramagnetltexplain
2$) Dn the asis of valence ond theory explain the nature of
onding in the folloing complexes
i) Po6Q3 ii) Po2D4)3Q3
2) lue coloured copper sulphate solution gave folloing
experimental results Explain the same
i) With aCueous potassium chloride it gave right green solution
ii) With aCueous potassium Juoride it gave a green precipitate
2+) ra the structures of optically active isomers of Poen)3Q3H
8112019 Chemistry Question 12sci (1)
httpslidepdfcomreaderfullchemistry-question-12sci-1 2838
2) ra the geometrical and optical isomers of
i) Pol2en)2QH ii) Polen)23)Q2H
25) What is lin8age isomerism Explain ith an example
37) What are hydrate isomers Explain ith examples
31) Explain the structure of
i) upraammonium sulphate ii) Po3)Q3H
32) What are the limitations of valence ond theory
33) Explain the magnetic properties of coordination compounds
34) Write the salient features of crystal eld theory What are itslimitations
3$) Explain the octahedral geometry of complexes using crystal
eld theory
3) Write a note on colours in coordination compounds
3+) Explain the factors aecting the staility of coordination
compound3) Write rief the applications of coordination compounds
HALOGEN DERIVATIVES O ALANES AND ARENES
1) What are al8yl halides o are they classied
2) Write (- names of the folloing compounds
i)
ii) 2Al
8112019 Chemistry Question 12sci (1)
httpslidepdfcomreaderfullchemistry-question-12sci-1 2938
iii)
iv)
v)
vi) secutyl chloride
vii) neopentyl romide
viii) tutyl iodide
ix) isopropyl romide
3) o is ethyl romide prepared from
i) Ethyl alcohol ii) ethane iii) ethane
4)Write the preparation of isopropyl chloride using the folloing
reagents
i) -l3 ii) -l$ iii) l2 iv) l v) Dl2
$) o is group replaced y folloing functional rroups
i) OD ii) O iii) O iv) O2
) Write a note on
i) andmeyerBs reaction ii) Wurt= reaction iii) 6in8elstein reaction
iv) 6ittig reaction v) 6riedel raft reaction
+) (dentify and in the folloing
8112019 Chemistry Question 12sci (1)
httpslidepdfcomreaderfullchemistry-question-12sci-1 3038
) Give the structures of the folloing compounds
i) 3romo2methyl pentane ii) 2romo3ethyl hexane iii) 1
holo utane
iv) pichloroen=ene v) 1lt1lt10richloroethane
5) student has performed an experiment in the laoratory e
mixed ater ith hexane and found to layers separated econd
time he mixed chloroform ith ater and he again found to
layers in the test tue Explain hich ill e upper layer and
hich one ill e loer layer in oth the experiments
17) onvert 1hloroutane into the folloing compounds
i) utane1ol ii) 1(odoutane iii) 3222 iv)
11) 6or each pair of compoundslt state hich compound is etter
2 sustrate
i) 2romoutanelt isopropyl romide ii) 1(odo2lt2dimethyl
propane or isopropyl iodide
12) hoose the memer that ill react faster from the folloing
pairs y 1 mechanism
13) -redict the expected product of sustitution reaction
i) isoutyl chloride mH sodium ethoxide
ii) nutyl chloride H sodium
iii) 1hloro propane H aC potassium hydroxide
iv) aniline H aD2gt l
14) Write the products
i) $22A2 H r L
ii) $A2 H r
8112019 Chemistry Question 12sci (1)
httpslidepdfcomreaderfullchemistry-question-12sci-1 3138
iii)
iv)
v)
1$) (dentify the chiral and achiral molecules
i)
ii)
iii)
1) iscuss 2 mechanism of methyl romide using aCueous
FD ra energy prole diagram1+) Write the mechanism of the reaction hen tutyl chloride is
treated ith aCueous FD ith energy prole diagram
1) ierentiate eteen 1 and 2 mechanism
15) Explain the nature of ond in
i) 322 ii)
27) What are uses of
i) 0 ii) (odoform iii) hloroform iv) aron tetrachloride
21) l8yl halides are polar and miscile ith aterlt explain
22) Which one of the folloing is more easily hydrolysed y
aCueous FD
$l$ and $2l
23) rrange the folloing groups in descending order 2lt D3lt
D3lt DD and l
24) ssign or conguration to each of the folloing
structures
8112019 Chemistry Question 12sci (1)
httpslidepdfcomreaderfullchemistry-question-12sci-1 3238
i)
ii)
iii)
iv)
DDlt -ED E0E
1) What are alcohols o are they classied
2) What are monohydric alcohols o are they classied
4) Write the structures of folloing alcohols
i) 1Ethylcyclohexanol ii) ex3en2ol iii)yclohex2en1ol
iv) -entane1lt4diol
v) 2lt4imethylhexane1lt3lt$triol
$) Explain the folloing
i) -ropan1ol has higher oiling point than nutane
ii) ampethanol is more solule in ater than -ropan1ol
) Write the mechanism of hydration of ethylene to ethyl alcohol
+) -ropan1ol can not e prepared y acid catalyst hydration of
propenelt then ho is propene converted into propan1ol
)5) o is propanone converted into
i) -ropan2ol ii) 2ampethyl propan2ol
17) o ill you otain utan2ol from
8112019 Chemistry Question 12sci (1)
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i) -ropanal ii) utan2one iii) ut2ene
11) o is propan1ol prepared from
i) -ropanal ii) -ropanoic acid
12) o is cyclopentanol prepared from
i) yclopentanone ii) yclopentene
14) Write the mechanism of acid catalysed dehydration of ethanol
to give ethane
1$) Write the structure of aldehyde lt caroxylic acid and ester
that yield folloing alcohol
1+) o ill you prepare
i) 2ampethylutane1ol from an al8ene
ii) cyclohexylmethanol from a Grignard reagent
iii) 1phenylethanol from acetaldehyde
1) o are folloing conversions rought aout
i) en=yl chloride to en=yl alcohol
ii) en=yl alcohol to en=oic acid
iii) 1Ethylcyclohexanol from yclohexanone
15) What are phenols o are they classied
27)21) Give the structures and (- names of isomeric phenols
represented y the molecular formula 17D
22) o is phenol prepared from
8112019 Chemistry Question 12sci (1)
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i) hloroen=ene ii) (sopropyl en=ene iii) en=ene sulphonic
acid iv) aniline
23 ) Explain the folloing
i) -henol is more acidic than phenol
ii) onitrophenol is more acidic than ocresol
iii) pnitrophenol is less volatile than onitrophenol
24) Explain the folloing reactions of phenol
i) FoleBs reaction ii) iemer0iemann reaction
2$) ame the reagents used to convert phenol intoi) picric acid ii) 2lt4lt0riromophenol iii) en=ene iv) ophenol
sulphonic acid
2) What is the action of folloing reagents on phenol i)
romine in 2 at lo temperature
ii) ilute nitric acid at room temperature iii) oncentrated
sulphuric acid at room temperature
2+) Give distinguish test eteen phenol and ethanol
2) What are ethers o are ethers classied
25) What is metamerism Give the structure and (- name of
metamers of 2ampethoxypropane
37) Write the mechanism for acidic dehydration of ethanol
31) o is diethyl ether prepared y continuous ethericationprocess Why is the process so called
32) o ill you prepared methoxyethane from
i) l8yl halide ii) ia=omethane
33) tate the important uses of i) -henol ii) diethyl ether
8112019 Chemistry Question 12sci (1)
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34) Write the mechanism of action of hydrogen romide on tert
utyl methyl ether
3$) Explain the folloing reactions of anisole
i) romination ii) itration iii) 6riedelrafts al8ylation iv)6riedelrafts acylation
3) Explainlt i) 0he OD group attached to aromatic ring in
phenols and ii) 0he al8oxy group in al8yl aryl ethers are ortholt
para directing and activate the aromatic ring toars electrophilic
sustitution
3+) Write the chemical eCuations for Williamson synthesis of 2
Ethoxy2methypentane starting from ethanol and 2ampethylpentan2ol
3) n organic compound ith the formula 417D3 shos
properties of ether and alcohol hen treated ith an excess of
r yields only one compound 1lt2 diromomethane Write
structural formula of ether and that of alcohol
ALDEHYDES ETONES AND CABO$YLIC
ACID
1) Write the structure and give (- names of the folloing
compounds
i) chloropropionaldehyde
ii) Rhydroxyutyraldehyde
iii) isoutyraldehyde
iv) Rmethylvaleraldehyde
8112019 Chemistry Question 12sci (1)
httpslidepdfcomreaderfullchemistry-question-12sci-1 3638
v) isopropyl methyl 8etone
vi) diisopropyl 8etone
vii) mromoen=aldehyde
viii) dien=yl 8etone
ix) divinyl 8etone
x) allyl methyl 8etone
xi) ethyl phenyl 8etone
xii) nutyrophenone
2) Write the structure of folloing compounds
i) 4ampethyl3nitroen=ophenone ii) 2ampethyl4oxopentanal iii)
3Dxopentanoic acid iv) 4chloropropiophenone v) 3
ampethoxyutanal vi) 4ydroxycyclohaxane caraldehyde
3) o ill you prepare i) propiophenone from propanenitrile ii)
4chloroen=aldehyde from 4chlorotoluene iii)
yclohaxanecaraldehyde from cyclohexylmethanol iv) 4
methoxyacetophenone from anisole v) 4methylen=aldehydefrom toluene
4) rrange the folloing compounds in the increasing order of
their oiling points
i) dimethyl etherlt ethyl alcohollt propanelt acetaldehyde
ii) acetonelt npropyl alcohollt ethyl methyl alcohol and nutane
$) What is the action of hydrogen cyanide in asic medium on i)utanone ii) 2lt4dichloroen=aldehyde
) What is the action of folloing compounds on cyclohexanone in
presence of dry hydrogen chloride
i) ethyl alcohol ii) ethylene glycol
8112019 Chemistry Question 12sci (1)
httpslidepdfcomreaderfullchemistry-question-12sci-1 3738
+) Write the structure of product in the folloing reactions
i) 322D3
ii) $2D3
) Write the structures of caronyl compounds and ammonia
derivatives that comine to give folloing imines
i)
ii)
iii)
iv)v)
vi)
5) Write the chemical eCuations for aldol condensation or
anni==aro reaction that folloing compounds undergo
i) -ropanal ii) 2ampethylpropanal iii) -entanal iv) 3
ampethylutanal v) cetophenonevi) pampethoxyen=aldehyde vii) 2ampethylcyclohaxanone viii)
chloral ix) yclopentanone
x) -henyl acetaldehyde xi) 1-henylpropan1one
17) Write the structure of the maKor product of the folloing
crossed aldol condensation
i) formaldehyde and propionaldehydeii) en=aldehyde ith acetone
11) (dentify the compounds SBlt SB and SB in the folloing
reactions and rerite the complete eCuations
i)
8112019 Chemistry Question 12sci (1)
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ii)
12)o ill you eect folloing tostep conversions
i) -ropanal into utanone ii) utanone into ut2ene iii)
en=ene into mromoacetophenone iv) ex3yne into exan
3one v) en=oic acid into mnitroen=ylalcohol
13) o ill you convert en=aldehyde into folloing compounds
ampore than one steps may e reCuired
i) en=ophenone ii) en=oic acid iii) 3-henylpropan1ol iv)hydroxyphenylacetic acid
14) Give a chemical test to distinguish eteen folloing pairs of
compounds
i) Ethanal and propanone ii) -rpopanal and propanone iii)
-entane2one and pentane3one
1$) Write the structure and (- names of folloing caroxylicacids
i) ltRdimethylutanoic acid ii) Rphenylutyric acid iii) 1038389
chloromethylvaleric acid
8112019 Chemistry Question 12sci (1)
httpslidepdfcomreaderfullchemistry-question-12sci-1 2838
2) ra the geometrical and optical isomers of
i) Pol2en)2QH ii) Polen)23)Q2H
25) What is lin8age isomerism Explain ith an example
37) What are hydrate isomers Explain ith examples
31) Explain the structure of
i) upraammonium sulphate ii) Po3)Q3H
32) What are the limitations of valence ond theory
33) Explain the magnetic properties of coordination compounds
34) Write the salient features of crystal eld theory What are itslimitations
3$) Explain the octahedral geometry of complexes using crystal
eld theory
3) Write a note on colours in coordination compounds
3+) Explain the factors aecting the staility of coordination
compound3) Write rief the applications of coordination compounds
HALOGEN DERIVATIVES O ALANES AND ARENES
1) What are al8yl halides o are they classied
2) Write (- names of the folloing compounds
i)
ii) 2Al
8112019 Chemistry Question 12sci (1)
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iii)
iv)
v)
vi) secutyl chloride
vii) neopentyl romide
viii) tutyl iodide
ix) isopropyl romide
3) o is ethyl romide prepared from
i) Ethyl alcohol ii) ethane iii) ethane
4)Write the preparation of isopropyl chloride using the folloing
reagents
i) -l3 ii) -l$ iii) l2 iv) l v) Dl2
$) o is group replaced y folloing functional rroups
i) OD ii) O iii) O iv) O2
) Write a note on
i) andmeyerBs reaction ii) Wurt= reaction iii) 6in8elstein reaction
iv) 6ittig reaction v) 6riedel raft reaction
+) (dentify and in the folloing
8112019 Chemistry Question 12sci (1)
httpslidepdfcomreaderfullchemistry-question-12sci-1 3038
) Give the structures of the folloing compounds
i) 3romo2methyl pentane ii) 2romo3ethyl hexane iii) 1
holo utane
iv) pichloroen=ene v) 1lt1lt10richloroethane
5) student has performed an experiment in the laoratory e
mixed ater ith hexane and found to layers separated econd
time he mixed chloroform ith ater and he again found to
layers in the test tue Explain hich ill e upper layer and
hich one ill e loer layer in oth the experiments
17) onvert 1hloroutane into the folloing compounds
i) utane1ol ii) 1(odoutane iii) 3222 iv)
11) 6or each pair of compoundslt state hich compound is etter
2 sustrate
i) 2romoutanelt isopropyl romide ii) 1(odo2lt2dimethyl
propane or isopropyl iodide
12) hoose the memer that ill react faster from the folloing
pairs y 1 mechanism
13) -redict the expected product of sustitution reaction
i) isoutyl chloride mH sodium ethoxide
ii) nutyl chloride H sodium
iii) 1hloro propane H aC potassium hydroxide
iv) aniline H aD2gt l
14) Write the products
i) $22A2 H r L
ii) $A2 H r
8112019 Chemistry Question 12sci (1)
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iii)
iv)
v)
1$) (dentify the chiral and achiral molecules
i)
ii)
iii)
1) iscuss 2 mechanism of methyl romide using aCueous
FD ra energy prole diagram1+) Write the mechanism of the reaction hen tutyl chloride is
treated ith aCueous FD ith energy prole diagram
1) ierentiate eteen 1 and 2 mechanism
15) Explain the nature of ond in
i) 322 ii)
27) What are uses of
i) 0 ii) (odoform iii) hloroform iv) aron tetrachloride
21) l8yl halides are polar and miscile ith aterlt explain
22) Which one of the folloing is more easily hydrolysed y
aCueous FD
$l$ and $2l
23) rrange the folloing groups in descending order 2lt D3lt
D3lt DD and l
24) ssign or conguration to each of the folloing
structures
8112019 Chemistry Question 12sci (1)
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i)
ii)
iii)
iv)
DDlt -ED E0E
1) What are alcohols o are they classied
2) What are monohydric alcohols o are they classied
4) Write the structures of folloing alcohols
i) 1Ethylcyclohexanol ii) ex3en2ol iii)yclohex2en1ol
iv) -entane1lt4diol
v) 2lt4imethylhexane1lt3lt$triol
$) Explain the folloing
i) -ropan1ol has higher oiling point than nutane
ii) ampethanol is more solule in ater than -ropan1ol
) Write the mechanism of hydration of ethylene to ethyl alcohol
+) -ropan1ol can not e prepared y acid catalyst hydration of
propenelt then ho is propene converted into propan1ol
)5) o is propanone converted into
i) -ropan2ol ii) 2ampethyl propan2ol
17) o ill you otain utan2ol from
8112019 Chemistry Question 12sci (1)
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i) -ropanal ii) utan2one iii) ut2ene
11) o is propan1ol prepared from
i) -ropanal ii) -ropanoic acid
12) o is cyclopentanol prepared from
i) yclopentanone ii) yclopentene
14) Write the mechanism of acid catalysed dehydration of ethanol
to give ethane
1$) Write the structure of aldehyde lt caroxylic acid and ester
that yield folloing alcohol
1+) o ill you prepare
i) 2ampethylutane1ol from an al8ene
ii) cyclohexylmethanol from a Grignard reagent
iii) 1phenylethanol from acetaldehyde
1) o are folloing conversions rought aout
i) en=yl chloride to en=yl alcohol
ii) en=yl alcohol to en=oic acid
iii) 1Ethylcyclohexanol from yclohexanone
15) What are phenols o are they classied
27)21) Give the structures and (- names of isomeric phenols
represented y the molecular formula 17D
22) o is phenol prepared from
8112019 Chemistry Question 12sci (1)
httpslidepdfcomreaderfullchemistry-question-12sci-1 3438
i) hloroen=ene ii) (sopropyl en=ene iii) en=ene sulphonic
acid iv) aniline
23 ) Explain the folloing
i) -henol is more acidic than phenol
ii) onitrophenol is more acidic than ocresol
iii) pnitrophenol is less volatile than onitrophenol
24) Explain the folloing reactions of phenol
i) FoleBs reaction ii) iemer0iemann reaction
2$) ame the reagents used to convert phenol intoi) picric acid ii) 2lt4lt0riromophenol iii) en=ene iv) ophenol
sulphonic acid
2) What is the action of folloing reagents on phenol i)
romine in 2 at lo temperature
ii) ilute nitric acid at room temperature iii) oncentrated
sulphuric acid at room temperature
2+) Give distinguish test eteen phenol and ethanol
2) What are ethers o are ethers classied
25) What is metamerism Give the structure and (- name of
metamers of 2ampethoxypropane
37) Write the mechanism for acidic dehydration of ethanol
31) o is diethyl ether prepared y continuous ethericationprocess Why is the process so called
32) o ill you prepared methoxyethane from
i) l8yl halide ii) ia=omethane
33) tate the important uses of i) -henol ii) diethyl ether
8112019 Chemistry Question 12sci (1)
httpslidepdfcomreaderfullchemistry-question-12sci-1 3538
34) Write the mechanism of action of hydrogen romide on tert
utyl methyl ether
3$) Explain the folloing reactions of anisole
i) romination ii) itration iii) 6riedelrafts al8ylation iv)6riedelrafts acylation
3) Explainlt i) 0he OD group attached to aromatic ring in
phenols and ii) 0he al8oxy group in al8yl aryl ethers are ortholt
para directing and activate the aromatic ring toars electrophilic
sustitution
3+) Write the chemical eCuations for Williamson synthesis of 2
Ethoxy2methypentane starting from ethanol and 2ampethylpentan2ol
3) n organic compound ith the formula 417D3 shos
properties of ether and alcohol hen treated ith an excess of
r yields only one compound 1lt2 diromomethane Write
structural formula of ether and that of alcohol
ALDEHYDES ETONES AND CABO$YLIC
ACID
1) Write the structure and give (- names of the folloing
compounds
i) chloropropionaldehyde
ii) Rhydroxyutyraldehyde
iii) isoutyraldehyde
iv) Rmethylvaleraldehyde
8112019 Chemistry Question 12sci (1)
httpslidepdfcomreaderfullchemistry-question-12sci-1 3638
v) isopropyl methyl 8etone
vi) diisopropyl 8etone
vii) mromoen=aldehyde
viii) dien=yl 8etone
ix) divinyl 8etone
x) allyl methyl 8etone
xi) ethyl phenyl 8etone
xii) nutyrophenone
2) Write the structure of folloing compounds
i) 4ampethyl3nitroen=ophenone ii) 2ampethyl4oxopentanal iii)
3Dxopentanoic acid iv) 4chloropropiophenone v) 3
ampethoxyutanal vi) 4ydroxycyclohaxane caraldehyde
3) o ill you prepare i) propiophenone from propanenitrile ii)
4chloroen=aldehyde from 4chlorotoluene iii)
yclohaxanecaraldehyde from cyclohexylmethanol iv) 4
methoxyacetophenone from anisole v) 4methylen=aldehydefrom toluene
4) rrange the folloing compounds in the increasing order of
their oiling points
i) dimethyl etherlt ethyl alcohollt propanelt acetaldehyde
ii) acetonelt npropyl alcohollt ethyl methyl alcohol and nutane
$) What is the action of hydrogen cyanide in asic medium on i)utanone ii) 2lt4dichloroen=aldehyde
) What is the action of folloing compounds on cyclohexanone in
presence of dry hydrogen chloride
i) ethyl alcohol ii) ethylene glycol
8112019 Chemistry Question 12sci (1)
httpslidepdfcomreaderfullchemistry-question-12sci-1 3738
+) Write the structure of product in the folloing reactions
i) 322D3
ii) $2D3
) Write the structures of caronyl compounds and ammonia
derivatives that comine to give folloing imines
i)
ii)
iii)
iv)v)
vi)
5) Write the chemical eCuations for aldol condensation or
anni==aro reaction that folloing compounds undergo
i) -ropanal ii) 2ampethylpropanal iii) -entanal iv) 3
ampethylutanal v) cetophenonevi) pampethoxyen=aldehyde vii) 2ampethylcyclohaxanone viii)
chloral ix) yclopentanone
x) -henyl acetaldehyde xi) 1-henylpropan1one
17) Write the structure of the maKor product of the folloing
crossed aldol condensation
i) formaldehyde and propionaldehydeii) en=aldehyde ith acetone
11) (dentify the compounds SBlt SB and SB in the folloing
reactions and rerite the complete eCuations
i)
8112019 Chemistry Question 12sci (1)
httpslidepdfcomreaderfullchemistry-question-12sci-1 3838
ii)
12)o ill you eect folloing tostep conversions
i) -ropanal into utanone ii) utanone into ut2ene iii)
en=ene into mromoacetophenone iv) ex3yne into exan
3one v) en=oic acid into mnitroen=ylalcohol
13) o ill you convert en=aldehyde into folloing compounds
ampore than one steps may e reCuired
i) en=ophenone ii) en=oic acid iii) 3-henylpropan1ol iv)hydroxyphenylacetic acid
14) Give a chemical test to distinguish eteen folloing pairs of
compounds
i) Ethanal and propanone ii) -rpopanal and propanone iii)
-entane2one and pentane3one
1$) Write the structure and (- names of folloing caroxylicacids
i) ltRdimethylutanoic acid ii) Rphenylutyric acid iii) 1038389
chloromethylvaleric acid
8112019 Chemistry Question 12sci (1)
httpslidepdfcomreaderfullchemistry-question-12sci-1 2938
iii)
iv)
v)
vi) secutyl chloride
vii) neopentyl romide
viii) tutyl iodide
ix) isopropyl romide
3) o is ethyl romide prepared from
i) Ethyl alcohol ii) ethane iii) ethane
4)Write the preparation of isopropyl chloride using the folloing
reagents
i) -l3 ii) -l$ iii) l2 iv) l v) Dl2
$) o is group replaced y folloing functional rroups
i) OD ii) O iii) O iv) O2
) Write a note on
i) andmeyerBs reaction ii) Wurt= reaction iii) 6in8elstein reaction
iv) 6ittig reaction v) 6riedel raft reaction
+) (dentify and in the folloing
8112019 Chemistry Question 12sci (1)
httpslidepdfcomreaderfullchemistry-question-12sci-1 3038
) Give the structures of the folloing compounds
i) 3romo2methyl pentane ii) 2romo3ethyl hexane iii) 1
holo utane
iv) pichloroen=ene v) 1lt1lt10richloroethane
5) student has performed an experiment in the laoratory e
mixed ater ith hexane and found to layers separated econd
time he mixed chloroform ith ater and he again found to
layers in the test tue Explain hich ill e upper layer and
hich one ill e loer layer in oth the experiments
17) onvert 1hloroutane into the folloing compounds
i) utane1ol ii) 1(odoutane iii) 3222 iv)
11) 6or each pair of compoundslt state hich compound is etter
2 sustrate
i) 2romoutanelt isopropyl romide ii) 1(odo2lt2dimethyl
propane or isopropyl iodide
12) hoose the memer that ill react faster from the folloing
pairs y 1 mechanism
13) -redict the expected product of sustitution reaction
i) isoutyl chloride mH sodium ethoxide
ii) nutyl chloride H sodium
iii) 1hloro propane H aC potassium hydroxide
iv) aniline H aD2gt l
14) Write the products
i) $22A2 H r L
ii) $A2 H r
8112019 Chemistry Question 12sci (1)
httpslidepdfcomreaderfullchemistry-question-12sci-1 3138
iii)
iv)
v)
1$) (dentify the chiral and achiral molecules
i)
ii)
iii)
1) iscuss 2 mechanism of methyl romide using aCueous
FD ra energy prole diagram1+) Write the mechanism of the reaction hen tutyl chloride is
treated ith aCueous FD ith energy prole diagram
1) ierentiate eteen 1 and 2 mechanism
15) Explain the nature of ond in
i) 322 ii)
27) What are uses of
i) 0 ii) (odoform iii) hloroform iv) aron tetrachloride
21) l8yl halides are polar and miscile ith aterlt explain
22) Which one of the folloing is more easily hydrolysed y
aCueous FD
$l$ and $2l
23) rrange the folloing groups in descending order 2lt D3lt
D3lt DD and l
24) ssign or conguration to each of the folloing
structures
8112019 Chemistry Question 12sci (1)
httpslidepdfcomreaderfullchemistry-question-12sci-1 3238
i)
ii)
iii)
iv)
DDlt -ED E0E
1) What are alcohols o are they classied
2) What are monohydric alcohols o are they classied
4) Write the structures of folloing alcohols
i) 1Ethylcyclohexanol ii) ex3en2ol iii)yclohex2en1ol
iv) -entane1lt4diol
v) 2lt4imethylhexane1lt3lt$triol
$) Explain the folloing
i) -ropan1ol has higher oiling point than nutane
ii) ampethanol is more solule in ater than -ropan1ol
) Write the mechanism of hydration of ethylene to ethyl alcohol
+) -ropan1ol can not e prepared y acid catalyst hydration of
propenelt then ho is propene converted into propan1ol
)5) o is propanone converted into
i) -ropan2ol ii) 2ampethyl propan2ol
17) o ill you otain utan2ol from
8112019 Chemistry Question 12sci (1)
httpslidepdfcomreaderfullchemistry-question-12sci-1 3338
i) -ropanal ii) utan2one iii) ut2ene
11) o is propan1ol prepared from
i) -ropanal ii) -ropanoic acid
12) o is cyclopentanol prepared from
i) yclopentanone ii) yclopentene
14) Write the mechanism of acid catalysed dehydration of ethanol
to give ethane
1$) Write the structure of aldehyde lt caroxylic acid and ester
that yield folloing alcohol
1+) o ill you prepare
i) 2ampethylutane1ol from an al8ene
ii) cyclohexylmethanol from a Grignard reagent
iii) 1phenylethanol from acetaldehyde
1) o are folloing conversions rought aout
i) en=yl chloride to en=yl alcohol
ii) en=yl alcohol to en=oic acid
iii) 1Ethylcyclohexanol from yclohexanone
15) What are phenols o are they classied
27)21) Give the structures and (- names of isomeric phenols
represented y the molecular formula 17D
22) o is phenol prepared from
8112019 Chemistry Question 12sci (1)
httpslidepdfcomreaderfullchemistry-question-12sci-1 3438
i) hloroen=ene ii) (sopropyl en=ene iii) en=ene sulphonic
acid iv) aniline
23 ) Explain the folloing
i) -henol is more acidic than phenol
ii) onitrophenol is more acidic than ocresol
iii) pnitrophenol is less volatile than onitrophenol
24) Explain the folloing reactions of phenol
i) FoleBs reaction ii) iemer0iemann reaction
2$) ame the reagents used to convert phenol intoi) picric acid ii) 2lt4lt0riromophenol iii) en=ene iv) ophenol
sulphonic acid
2) What is the action of folloing reagents on phenol i)
romine in 2 at lo temperature
ii) ilute nitric acid at room temperature iii) oncentrated
sulphuric acid at room temperature
2+) Give distinguish test eteen phenol and ethanol
2) What are ethers o are ethers classied
25) What is metamerism Give the structure and (- name of
metamers of 2ampethoxypropane
37) Write the mechanism for acidic dehydration of ethanol
31) o is diethyl ether prepared y continuous ethericationprocess Why is the process so called
32) o ill you prepared methoxyethane from
i) l8yl halide ii) ia=omethane
33) tate the important uses of i) -henol ii) diethyl ether
8112019 Chemistry Question 12sci (1)
httpslidepdfcomreaderfullchemistry-question-12sci-1 3538
34) Write the mechanism of action of hydrogen romide on tert
utyl methyl ether
3$) Explain the folloing reactions of anisole
i) romination ii) itration iii) 6riedelrafts al8ylation iv)6riedelrafts acylation
3) Explainlt i) 0he OD group attached to aromatic ring in
phenols and ii) 0he al8oxy group in al8yl aryl ethers are ortholt
para directing and activate the aromatic ring toars electrophilic
sustitution
3+) Write the chemical eCuations for Williamson synthesis of 2
Ethoxy2methypentane starting from ethanol and 2ampethylpentan2ol
3) n organic compound ith the formula 417D3 shos
properties of ether and alcohol hen treated ith an excess of
r yields only one compound 1lt2 diromomethane Write
structural formula of ether and that of alcohol
ALDEHYDES ETONES AND CABO$YLIC
ACID
1) Write the structure and give (- names of the folloing
compounds
i) chloropropionaldehyde
ii) Rhydroxyutyraldehyde
iii) isoutyraldehyde
iv) Rmethylvaleraldehyde
8112019 Chemistry Question 12sci (1)
httpslidepdfcomreaderfullchemistry-question-12sci-1 3638
v) isopropyl methyl 8etone
vi) diisopropyl 8etone
vii) mromoen=aldehyde
viii) dien=yl 8etone
ix) divinyl 8etone
x) allyl methyl 8etone
xi) ethyl phenyl 8etone
xii) nutyrophenone
2) Write the structure of folloing compounds
i) 4ampethyl3nitroen=ophenone ii) 2ampethyl4oxopentanal iii)
3Dxopentanoic acid iv) 4chloropropiophenone v) 3
ampethoxyutanal vi) 4ydroxycyclohaxane caraldehyde
3) o ill you prepare i) propiophenone from propanenitrile ii)
4chloroen=aldehyde from 4chlorotoluene iii)
yclohaxanecaraldehyde from cyclohexylmethanol iv) 4
methoxyacetophenone from anisole v) 4methylen=aldehydefrom toluene
4) rrange the folloing compounds in the increasing order of
their oiling points
i) dimethyl etherlt ethyl alcohollt propanelt acetaldehyde
ii) acetonelt npropyl alcohollt ethyl methyl alcohol and nutane
$) What is the action of hydrogen cyanide in asic medium on i)utanone ii) 2lt4dichloroen=aldehyde
) What is the action of folloing compounds on cyclohexanone in
presence of dry hydrogen chloride
i) ethyl alcohol ii) ethylene glycol
8112019 Chemistry Question 12sci (1)
httpslidepdfcomreaderfullchemistry-question-12sci-1 3738
+) Write the structure of product in the folloing reactions
i) 322D3
ii) $2D3
) Write the structures of caronyl compounds and ammonia
derivatives that comine to give folloing imines
i)
ii)
iii)
iv)v)
vi)
5) Write the chemical eCuations for aldol condensation or
anni==aro reaction that folloing compounds undergo
i) -ropanal ii) 2ampethylpropanal iii) -entanal iv) 3
ampethylutanal v) cetophenonevi) pampethoxyen=aldehyde vii) 2ampethylcyclohaxanone viii)
chloral ix) yclopentanone
x) -henyl acetaldehyde xi) 1-henylpropan1one
17) Write the structure of the maKor product of the folloing
crossed aldol condensation
i) formaldehyde and propionaldehydeii) en=aldehyde ith acetone
11) (dentify the compounds SBlt SB and SB in the folloing
reactions and rerite the complete eCuations
i)
8112019 Chemistry Question 12sci (1)
httpslidepdfcomreaderfullchemistry-question-12sci-1 3838
ii)
12)o ill you eect folloing tostep conversions
i) -ropanal into utanone ii) utanone into ut2ene iii)
en=ene into mromoacetophenone iv) ex3yne into exan
3one v) en=oic acid into mnitroen=ylalcohol
13) o ill you convert en=aldehyde into folloing compounds
ampore than one steps may e reCuired
i) en=ophenone ii) en=oic acid iii) 3-henylpropan1ol iv)hydroxyphenylacetic acid
14) Give a chemical test to distinguish eteen folloing pairs of
compounds
i) Ethanal and propanone ii) -rpopanal and propanone iii)
-entane2one and pentane3one
1$) Write the structure and (- names of folloing caroxylicacids
i) ltRdimethylutanoic acid ii) Rphenylutyric acid iii) 1038389
chloromethylvaleric acid
8112019 Chemistry Question 12sci (1)
httpslidepdfcomreaderfullchemistry-question-12sci-1 3038
) Give the structures of the folloing compounds
i) 3romo2methyl pentane ii) 2romo3ethyl hexane iii) 1
holo utane
iv) pichloroen=ene v) 1lt1lt10richloroethane
5) student has performed an experiment in the laoratory e
mixed ater ith hexane and found to layers separated econd
time he mixed chloroform ith ater and he again found to
layers in the test tue Explain hich ill e upper layer and
hich one ill e loer layer in oth the experiments
17) onvert 1hloroutane into the folloing compounds
i) utane1ol ii) 1(odoutane iii) 3222 iv)
11) 6or each pair of compoundslt state hich compound is etter
2 sustrate
i) 2romoutanelt isopropyl romide ii) 1(odo2lt2dimethyl
propane or isopropyl iodide
12) hoose the memer that ill react faster from the folloing
pairs y 1 mechanism
13) -redict the expected product of sustitution reaction
i) isoutyl chloride mH sodium ethoxide
ii) nutyl chloride H sodium
iii) 1hloro propane H aC potassium hydroxide
iv) aniline H aD2gt l
14) Write the products
i) $22A2 H r L
ii) $A2 H r
8112019 Chemistry Question 12sci (1)
httpslidepdfcomreaderfullchemistry-question-12sci-1 3138
iii)
iv)
v)
1$) (dentify the chiral and achiral molecules
i)
ii)
iii)
1) iscuss 2 mechanism of methyl romide using aCueous
FD ra energy prole diagram1+) Write the mechanism of the reaction hen tutyl chloride is
treated ith aCueous FD ith energy prole diagram
1) ierentiate eteen 1 and 2 mechanism
15) Explain the nature of ond in
i) 322 ii)
27) What are uses of
i) 0 ii) (odoform iii) hloroform iv) aron tetrachloride
21) l8yl halides are polar and miscile ith aterlt explain
22) Which one of the folloing is more easily hydrolysed y
aCueous FD
$l$ and $2l
23) rrange the folloing groups in descending order 2lt D3lt
D3lt DD and l
24) ssign or conguration to each of the folloing
structures
8112019 Chemistry Question 12sci (1)
httpslidepdfcomreaderfullchemistry-question-12sci-1 3238
i)
ii)
iii)
iv)
DDlt -ED E0E
1) What are alcohols o are they classied
2) What are monohydric alcohols o are they classied
4) Write the structures of folloing alcohols
i) 1Ethylcyclohexanol ii) ex3en2ol iii)yclohex2en1ol
iv) -entane1lt4diol
v) 2lt4imethylhexane1lt3lt$triol
$) Explain the folloing
i) -ropan1ol has higher oiling point than nutane
ii) ampethanol is more solule in ater than -ropan1ol
) Write the mechanism of hydration of ethylene to ethyl alcohol
+) -ropan1ol can not e prepared y acid catalyst hydration of
propenelt then ho is propene converted into propan1ol
)5) o is propanone converted into
i) -ropan2ol ii) 2ampethyl propan2ol
17) o ill you otain utan2ol from
8112019 Chemistry Question 12sci (1)
httpslidepdfcomreaderfullchemistry-question-12sci-1 3338
i) -ropanal ii) utan2one iii) ut2ene
11) o is propan1ol prepared from
i) -ropanal ii) -ropanoic acid
12) o is cyclopentanol prepared from
i) yclopentanone ii) yclopentene
14) Write the mechanism of acid catalysed dehydration of ethanol
to give ethane
1$) Write the structure of aldehyde lt caroxylic acid and ester
that yield folloing alcohol
1+) o ill you prepare
i) 2ampethylutane1ol from an al8ene
ii) cyclohexylmethanol from a Grignard reagent
iii) 1phenylethanol from acetaldehyde
1) o are folloing conversions rought aout
i) en=yl chloride to en=yl alcohol
ii) en=yl alcohol to en=oic acid
iii) 1Ethylcyclohexanol from yclohexanone
15) What are phenols o are they classied
27)21) Give the structures and (- names of isomeric phenols
represented y the molecular formula 17D
22) o is phenol prepared from
8112019 Chemistry Question 12sci (1)
httpslidepdfcomreaderfullchemistry-question-12sci-1 3438
i) hloroen=ene ii) (sopropyl en=ene iii) en=ene sulphonic
acid iv) aniline
23 ) Explain the folloing
i) -henol is more acidic than phenol
ii) onitrophenol is more acidic than ocresol
iii) pnitrophenol is less volatile than onitrophenol
24) Explain the folloing reactions of phenol
i) FoleBs reaction ii) iemer0iemann reaction
2$) ame the reagents used to convert phenol intoi) picric acid ii) 2lt4lt0riromophenol iii) en=ene iv) ophenol
sulphonic acid
2) What is the action of folloing reagents on phenol i)
romine in 2 at lo temperature
ii) ilute nitric acid at room temperature iii) oncentrated
sulphuric acid at room temperature
2+) Give distinguish test eteen phenol and ethanol
2) What are ethers o are ethers classied
25) What is metamerism Give the structure and (- name of
metamers of 2ampethoxypropane
37) Write the mechanism for acidic dehydration of ethanol
31) o is diethyl ether prepared y continuous ethericationprocess Why is the process so called
32) o ill you prepared methoxyethane from
i) l8yl halide ii) ia=omethane
33) tate the important uses of i) -henol ii) diethyl ether
8112019 Chemistry Question 12sci (1)
httpslidepdfcomreaderfullchemistry-question-12sci-1 3538
34) Write the mechanism of action of hydrogen romide on tert
utyl methyl ether
3$) Explain the folloing reactions of anisole
i) romination ii) itration iii) 6riedelrafts al8ylation iv)6riedelrafts acylation
3) Explainlt i) 0he OD group attached to aromatic ring in
phenols and ii) 0he al8oxy group in al8yl aryl ethers are ortholt
para directing and activate the aromatic ring toars electrophilic
sustitution
3+) Write the chemical eCuations for Williamson synthesis of 2
Ethoxy2methypentane starting from ethanol and 2ampethylpentan2ol
3) n organic compound ith the formula 417D3 shos
properties of ether and alcohol hen treated ith an excess of
r yields only one compound 1lt2 diromomethane Write
structural formula of ether and that of alcohol
ALDEHYDES ETONES AND CABO$YLIC
ACID
1) Write the structure and give (- names of the folloing
compounds
i) chloropropionaldehyde
ii) Rhydroxyutyraldehyde
iii) isoutyraldehyde
iv) Rmethylvaleraldehyde
8112019 Chemistry Question 12sci (1)
httpslidepdfcomreaderfullchemistry-question-12sci-1 3638
v) isopropyl methyl 8etone
vi) diisopropyl 8etone
vii) mromoen=aldehyde
viii) dien=yl 8etone
ix) divinyl 8etone
x) allyl methyl 8etone
xi) ethyl phenyl 8etone
xii) nutyrophenone
2) Write the structure of folloing compounds
i) 4ampethyl3nitroen=ophenone ii) 2ampethyl4oxopentanal iii)
3Dxopentanoic acid iv) 4chloropropiophenone v) 3
ampethoxyutanal vi) 4ydroxycyclohaxane caraldehyde
3) o ill you prepare i) propiophenone from propanenitrile ii)
4chloroen=aldehyde from 4chlorotoluene iii)
yclohaxanecaraldehyde from cyclohexylmethanol iv) 4
methoxyacetophenone from anisole v) 4methylen=aldehydefrom toluene
4) rrange the folloing compounds in the increasing order of
their oiling points
i) dimethyl etherlt ethyl alcohollt propanelt acetaldehyde
ii) acetonelt npropyl alcohollt ethyl methyl alcohol and nutane
$) What is the action of hydrogen cyanide in asic medium on i)utanone ii) 2lt4dichloroen=aldehyde
) What is the action of folloing compounds on cyclohexanone in
presence of dry hydrogen chloride
i) ethyl alcohol ii) ethylene glycol
8112019 Chemistry Question 12sci (1)
httpslidepdfcomreaderfullchemistry-question-12sci-1 3738
+) Write the structure of product in the folloing reactions
i) 322D3
ii) $2D3
) Write the structures of caronyl compounds and ammonia
derivatives that comine to give folloing imines
i)
ii)
iii)
iv)v)
vi)
5) Write the chemical eCuations for aldol condensation or
anni==aro reaction that folloing compounds undergo
i) -ropanal ii) 2ampethylpropanal iii) -entanal iv) 3
ampethylutanal v) cetophenonevi) pampethoxyen=aldehyde vii) 2ampethylcyclohaxanone viii)
chloral ix) yclopentanone
x) -henyl acetaldehyde xi) 1-henylpropan1one
17) Write the structure of the maKor product of the folloing
crossed aldol condensation
i) formaldehyde and propionaldehydeii) en=aldehyde ith acetone
11) (dentify the compounds SBlt SB and SB in the folloing
reactions and rerite the complete eCuations
i)
8112019 Chemistry Question 12sci (1)
httpslidepdfcomreaderfullchemistry-question-12sci-1 3838
ii)
12)o ill you eect folloing tostep conversions
i) -ropanal into utanone ii) utanone into ut2ene iii)
en=ene into mromoacetophenone iv) ex3yne into exan
3one v) en=oic acid into mnitroen=ylalcohol
13) o ill you convert en=aldehyde into folloing compounds
ampore than one steps may e reCuired
i) en=ophenone ii) en=oic acid iii) 3-henylpropan1ol iv)hydroxyphenylacetic acid
14) Give a chemical test to distinguish eteen folloing pairs of
compounds
i) Ethanal and propanone ii) -rpopanal and propanone iii)
-entane2one and pentane3one
1$) Write the structure and (- names of folloing caroxylicacids
i) ltRdimethylutanoic acid ii) Rphenylutyric acid iii) 1038389
chloromethylvaleric acid
8112019 Chemistry Question 12sci (1)
httpslidepdfcomreaderfullchemistry-question-12sci-1 3138
iii)
iv)
v)
1$) (dentify the chiral and achiral molecules
i)
ii)
iii)
1) iscuss 2 mechanism of methyl romide using aCueous
FD ra energy prole diagram1+) Write the mechanism of the reaction hen tutyl chloride is
treated ith aCueous FD ith energy prole diagram
1) ierentiate eteen 1 and 2 mechanism
15) Explain the nature of ond in
i) 322 ii)
27) What are uses of
i) 0 ii) (odoform iii) hloroform iv) aron tetrachloride
21) l8yl halides are polar and miscile ith aterlt explain
22) Which one of the folloing is more easily hydrolysed y
aCueous FD
$l$ and $2l
23) rrange the folloing groups in descending order 2lt D3lt
D3lt DD and l
24) ssign or conguration to each of the folloing
structures
8112019 Chemistry Question 12sci (1)
httpslidepdfcomreaderfullchemistry-question-12sci-1 3238
i)
ii)
iii)
iv)
DDlt -ED E0E
1) What are alcohols o are they classied
2) What are monohydric alcohols o are they classied
4) Write the structures of folloing alcohols
i) 1Ethylcyclohexanol ii) ex3en2ol iii)yclohex2en1ol
iv) -entane1lt4diol
v) 2lt4imethylhexane1lt3lt$triol
$) Explain the folloing
i) -ropan1ol has higher oiling point than nutane
ii) ampethanol is more solule in ater than -ropan1ol
) Write the mechanism of hydration of ethylene to ethyl alcohol
+) -ropan1ol can not e prepared y acid catalyst hydration of
propenelt then ho is propene converted into propan1ol
)5) o is propanone converted into
i) -ropan2ol ii) 2ampethyl propan2ol
17) o ill you otain utan2ol from
8112019 Chemistry Question 12sci (1)
httpslidepdfcomreaderfullchemistry-question-12sci-1 3338
i) -ropanal ii) utan2one iii) ut2ene
11) o is propan1ol prepared from
i) -ropanal ii) -ropanoic acid
12) o is cyclopentanol prepared from
i) yclopentanone ii) yclopentene
14) Write the mechanism of acid catalysed dehydration of ethanol
to give ethane
1$) Write the structure of aldehyde lt caroxylic acid and ester
that yield folloing alcohol
1+) o ill you prepare
i) 2ampethylutane1ol from an al8ene
ii) cyclohexylmethanol from a Grignard reagent
iii) 1phenylethanol from acetaldehyde
1) o are folloing conversions rought aout
i) en=yl chloride to en=yl alcohol
ii) en=yl alcohol to en=oic acid
iii) 1Ethylcyclohexanol from yclohexanone
15) What are phenols o are they classied
27)21) Give the structures and (- names of isomeric phenols
represented y the molecular formula 17D
22) o is phenol prepared from
8112019 Chemistry Question 12sci (1)
httpslidepdfcomreaderfullchemistry-question-12sci-1 3438
i) hloroen=ene ii) (sopropyl en=ene iii) en=ene sulphonic
acid iv) aniline
23 ) Explain the folloing
i) -henol is more acidic than phenol
ii) onitrophenol is more acidic than ocresol
iii) pnitrophenol is less volatile than onitrophenol
24) Explain the folloing reactions of phenol
i) FoleBs reaction ii) iemer0iemann reaction
2$) ame the reagents used to convert phenol intoi) picric acid ii) 2lt4lt0riromophenol iii) en=ene iv) ophenol
sulphonic acid
2) What is the action of folloing reagents on phenol i)
romine in 2 at lo temperature
ii) ilute nitric acid at room temperature iii) oncentrated
sulphuric acid at room temperature
2+) Give distinguish test eteen phenol and ethanol
2) What are ethers o are ethers classied
25) What is metamerism Give the structure and (- name of
metamers of 2ampethoxypropane
37) Write the mechanism for acidic dehydration of ethanol
31) o is diethyl ether prepared y continuous ethericationprocess Why is the process so called
32) o ill you prepared methoxyethane from
i) l8yl halide ii) ia=omethane
33) tate the important uses of i) -henol ii) diethyl ether
8112019 Chemistry Question 12sci (1)
httpslidepdfcomreaderfullchemistry-question-12sci-1 3538
34) Write the mechanism of action of hydrogen romide on tert
utyl methyl ether
3$) Explain the folloing reactions of anisole
i) romination ii) itration iii) 6riedelrafts al8ylation iv)6riedelrafts acylation
3) Explainlt i) 0he OD group attached to aromatic ring in
phenols and ii) 0he al8oxy group in al8yl aryl ethers are ortholt
para directing and activate the aromatic ring toars electrophilic
sustitution
3+) Write the chemical eCuations for Williamson synthesis of 2
Ethoxy2methypentane starting from ethanol and 2ampethylpentan2ol
3) n organic compound ith the formula 417D3 shos
properties of ether and alcohol hen treated ith an excess of
r yields only one compound 1lt2 diromomethane Write
structural formula of ether and that of alcohol
ALDEHYDES ETONES AND CABO$YLIC
ACID
1) Write the structure and give (- names of the folloing
compounds
i) chloropropionaldehyde
ii) Rhydroxyutyraldehyde
iii) isoutyraldehyde
iv) Rmethylvaleraldehyde
8112019 Chemistry Question 12sci (1)
httpslidepdfcomreaderfullchemistry-question-12sci-1 3638
v) isopropyl methyl 8etone
vi) diisopropyl 8etone
vii) mromoen=aldehyde
viii) dien=yl 8etone
ix) divinyl 8etone
x) allyl methyl 8etone
xi) ethyl phenyl 8etone
xii) nutyrophenone
2) Write the structure of folloing compounds
i) 4ampethyl3nitroen=ophenone ii) 2ampethyl4oxopentanal iii)
3Dxopentanoic acid iv) 4chloropropiophenone v) 3
ampethoxyutanal vi) 4ydroxycyclohaxane caraldehyde
3) o ill you prepare i) propiophenone from propanenitrile ii)
4chloroen=aldehyde from 4chlorotoluene iii)
yclohaxanecaraldehyde from cyclohexylmethanol iv) 4
methoxyacetophenone from anisole v) 4methylen=aldehydefrom toluene
4) rrange the folloing compounds in the increasing order of
their oiling points
i) dimethyl etherlt ethyl alcohollt propanelt acetaldehyde
ii) acetonelt npropyl alcohollt ethyl methyl alcohol and nutane
$) What is the action of hydrogen cyanide in asic medium on i)utanone ii) 2lt4dichloroen=aldehyde
) What is the action of folloing compounds on cyclohexanone in
presence of dry hydrogen chloride
i) ethyl alcohol ii) ethylene glycol
8112019 Chemistry Question 12sci (1)
httpslidepdfcomreaderfullchemistry-question-12sci-1 3738
+) Write the structure of product in the folloing reactions
i) 322D3
ii) $2D3
) Write the structures of caronyl compounds and ammonia
derivatives that comine to give folloing imines
i)
ii)
iii)
iv)v)
vi)
5) Write the chemical eCuations for aldol condensation or
anni==aro reaction that folloing compounds undergo
i) -ropanal ii) 2ampethylpropanal iii) -entanal iv) 3
ampethylutanal v) cetophenonevi) pampethoxyen=aldehyde vii) 2ampethylcyclohaxanone viii)
chloral ix) yclopentanone
x) -henyl acetaldehyde xi) 1-henylpropan1one
17) Write the structure of the maKor product of the folloing
crossed aldol condensation
i) formaldehyde and propionaldehydeii) en=aldehyde ith acetone
11) (dentify the compounds SBlt SB and SB in the folloing
reactions and rerite the complete eCuations
i)
8112019 Chemistry Question 12sci (1)
httpslidepdfcomreaderfullchemistry-question-12sci-1 3838
ii)
12)o ill you eect folloing tostep conversions
i) -ropanal into utanone ii) utanone into ut2ene iii)
en=ene into mromoacetophenone iv) ex3yne into exan
3one v) en=oic acid into mnitroen=ylalcohol
13) o ill you convert en=aldehyde into folloing compounds
ampore than one steps may e reCuired
i) en=ophenone ii) en=oic acid iii) 3-henylpropan1ol iv)hydroxyphenylacetic acid
14) Give a chemical test to distinguish eteen folloing pairs of
compounds
i) Ethanal and propanone ii) -rpopanal and propanone iii)
-entane2one and pentane3one
1$) Write the structure and (- names of folloing caroxylicacids
i) ltRdimethylutanoic acid ii) Rphenylutyric acid iii) 1038389
chloromethylvaleric acid
8112019 Chemistry Question 12sci (1)
httpslidepdfcomreaderfullchemistry-question-12sci-1 3238
i)
ii)
iii)
iv)
DDlt -ED E0E
1) What are alcohols o are they classied
2) What are monohydric alcohols o are they classied
4) Write the structures of folloing alcohols
i) 1Ethylcyclohexanol ii) ex3en2ol iii)yclohex2en1ol
iv) -entane1lt4diol
v) 2lt4imethylhexane1lt3lt$triol
$) Explain the folloing
i) -ropan1ol has higher oiling point than nutane
ii) ampethanol is more solule in ater than -ropan1ol
) Write the mechanism of hydration of ethylene to ethyl alcohol
+) -ropan1ol can not e prepared y acid catalyst hydration of
propenelt then ho is propene converted into propan1ol
)5) o is propanone converted into
i) -ropan2ol ii) 2ampethyl propan2ol
17) o ill you otain utan2ol from
8112019 Chemistry Question 12sci (1)
httpslidepdfcomreaderfullchemistry-question-12sci-1 3338
i) -ropanal ii) utan2one iii) ut2ene
11) o is propan1ol prepared from
i) -ropanal ii) -ropanoic acid
12) o is cyclopentanol prepared from
i) yclopentanone ii) yclopentene
14) Write the mechanism of acid catalysed dehydration of ethanol
to give ethane
1$) Write the structure of aldehyde lt caroxylic acid and ester
that yield folloing alcohol
1+) o ill you prepare
i) 2ampethylutane1ol from an al8ene
ii) cyclohexylmethanol from a Grignard reagent
iii) 1phenylethanol from acetaldehyde
1) o are folloing conversions rought aout
i) en=yl chloride to en=yl alcohol
ii) en=yl alcohol to en=oic acid
iii) 1Ethylcyclohexanol from yclohexanone
15) What are phenols o are they classied
27)21) Give the structures and (- names of isomeric phenols
represented y the molecular formula 17D
22) o is phenol prepared from
8112019 Chemistry Question 12sci (1)
httpslidepdfcomreaderfullchemistry-question-12sci-1 3438
i) hloroen=ene ii) (sopropyl en=ene iii) en=ene sulphonic
acid iv) aniline
23 ) Explain the folloing
i) -henol is more acidic than phenol
ii) onitrophenol is more acidic than ocresol
iii) pnitrophenol is less volatile than onitrophenol
24) Explain the folloing reactions of phenol
i) FoleBs reaction ii) iemer0iemann reaction
2$) ame the reagents used to convert phenol intoi) picric acid ii) 2lt4lt0riromophenol iii) en=ene iv) ophenol
sulphonic acid
2) What is the action of folloing reagents on phenol i)
romine in 2 at lo temperature
ii) ilute nitric acid at room temperature iii) oncentrated
sulphuric acid at room temperature
2+) Give distinguish test eteen phenol and ethanol
2) What are ethers o are ethers classied
25) What is metamerism Give the structure and (- name of
metamers of 2ampethoxypropane
37) Write the mechanism for acidic dehydration of ethanol
31) o is diethyl ether prepared y continuous ethericationprocess Why is the process so called
32) o ill you prepared methoxyethane from
i) l8yl halide ii) ia=omethane
33) tate the important uses of i) -henol ii) diethyl ether
8112019 Chemistry Question 12sci (1)
httpslidepdfcomreaderfullchemistry-question-12sci-1 3538
34) Write the mechanism of action of hydrogen romide on tert
utyl methyl ether
3$) Explain the folloing reactions of anisole
i) romination ii) itration iii) 6riedelrafts al8ylation iv)6riedelrafts acylation
3) Explainlt i) 0he OD group attached to aromatic ring in
phenols and ii) 0he al8oxy group in al8yl aryl ethers are ortholt
para directing and activate the aromatic ring toars electrophilic
sustitution
3+) Write the chemical eCuations for Williamson synthesis of 2
Ethoxy2methypentane starting from ethanol and 2ampethylpentan2ol
3) n organic compound ith the formula 417D3 shos
properties of ether and alcohol hen treated ith an excess of
r yields only one compound 1lt2 diromomethane Write
structural formula of ether and that of alcohol
ALDEHYDES ETONES AND CABO$YLIC
ACID
1) Write the structure and give (- names of the folloing
compounds
i) chloropropionaldehyde
ii) Rhydroxyutyraldehyde
iii) isoutyraldehyde
iv) Rmethylvaleraldehyde
8112019 Chemistry Question 12sci (1)
httpslidepdfcomreaderfullchemistry-question-12sci-1 3638
v) isopropyl methyl 8etone
vi) diisopropyl 8etone
vii) mromoen=aldehyde
viii) dien=yl 8etone
ix) divinyl 8etone
x) allyl methyl 8etone
xi) ethyl phenyl 8etone
xii) nutyrophenone
2) Write the structure of folloing compounds
i) 4ampethyl3nitroen=ophenone ii) 2ampethyl4oxopentanal iii)
3Dxopentanoic acid iv) 4chloropropiophenone v) 3
ampethoxyutanal vi) 4ydroxycyclohaxane caraldehyde
3) o ill you prepare i) propiophenone from propanenitrile ii)
4chloroen=aldehyde from 4chlorotoluene iii)
yclohaxanecaraldehyde from cyclohexylmethanol iv) 4
methoxyacetophenone from anisole v) 4methylen=aldehydefrom toluene
4) rrange the folloing compounds in the increasing order of
their oiling points
i) dimethyl etherlt ethyl alcohollt propanelt acetaldehyde
ii) acetonelt npropyl alcohollt ethyl methyl alcohol and nutane
$) What is the action of hydrogen cyanide in asic medium on i)utanone ii) 2lt4dichloroen=aldehyde
) What is the action of folloing compounds on cyclohexanone in
presence of dry hydrogen chloride
i) ethyl alcohol ii) ethylene glycol
8112019 Chemistry Question 12sci (1)
httpslidepdfcomreaderfullchemistry-question-12sci-1 3738
+) Write the structure of product in the folloing reactions
i) 322D3
ii) $2D3
) Write the structures of caronyl compounds and ammonia
derivatives that comine to give folloing imines
i)
ii)
iii)
iv)v)
vi)
5) Write the chemical eCuations for aldol condensation or
anni==aro reaction that folloing compounds undergo
i) -ropanal ii) 2ampethylpropanal iii) -entanal iv) 3
ampethylutanal v) cetophenonevi) pampethoxyen=aldehyde vii) 2ampethylcyclohaxanone viii)
chloral ix) yclopentanone
x) -henyl acetaldehyde xi) 1-henylpropan1one
17) Write the structure of the maKor product of the folloing
crossed aldol condensation
i) formaldehyde and propionaldehydeii) en=aldehyde ith acetone
11) (dentify the compounds SBlt SB and SB in the folloing
reactions and rerite the complete eCuations
i)
8112019 Chemistry Question 12sci (1)
httpslidepdfcomreaderfullchemistry-question-12sci-1 3838
ii)
12)o ill you eect folloing tostep conversions
i) -ropanal into utanone ii) utanone into ut2ene iii)
en=ene into mromoacetophenone iv) ex3yne into exan
3one v) en=oic acid into mnitroen=ylalcohol
13) o ill you convert en=aldehyde into folloing compounds
ampore than one steps may e reCuired
i) en=ophenone ii) en=oic acid iii) 3-henylpropan1ol iv)hydroxyphenylacetic acid
14) Give a chemical test to distinguish eteen folloing pairs of
compounds
i) Ethanal and propanone ii) -rpopanal and propanone iii)
-entane2one and pentane3one
1$) Write the structure and (- names of folloing caroxylicacids
i) ltRdimethylutanoic acid ii) Rphenylutyric acid iii) 1038389
chloromethylvaleric acid
8112019 Chemistry Question 12sci (1)
httpslidepdfcomreaderfullchemistry-question-12sci-1 3338
i) -ropanal ii) utan2one iii) ut2ene
11) o is propan1ol prepared from
i) -ropanal ii) -ropanoic acid
12) o is cyclopentanol prepared from
i) yclopentanone ii) yclopentene
14) Write the mechanism of acid catalysed dehydration of ethanol
to give ethane
1$) Write the structure of aldehyde lt caroxylic acid and ester
that yield folloing alcohol
1+) o ill you prepare
i) 2ampethylutane1ol from an al8ene
ii) cyclohexylmethanol from a Grignard reagent
iii) 1phenylethanol from acetaldehyde
1) o are folloing conversions rought aout
i) en=yl chloride to en=yl alcohol
ii) en=yl alcohol to en=oic acid
iii) 1Ethylcyclohexanol from yclohexanone
15) What are phenols o are they classied
27)21) Give the structures and (- names of isomeric phenols
represented y the molecular formula 17D
22) o is phenol prepared from
8112019 Chemistry Question 12sci (1)
httpslidepdfcomreaderfullchemistry-question-12sci-1 3438
i) hloroen=ene ii) (sopropyl en=ene iii) en=ene sulphonic
acid iv) aniline
23 ) Explain the folloing
i) -henol is more acidic than phenol
ii) onitrophenol is more acidic than ocresol
iii) pnitrophenol is less volatile than onitrophenol
24) Explain the folloing reactions of phenol
i) FoleBs reaction ii) iemer0iemann reaction
2$) ame the reagents used to convert phenol intoi) picric acid ii) 2lt4lt0riromophenol iii) en=ene iv) ophenol
sulphonic acid
2) What is the action of folloing reagents on phenol i)
romine in 2 at lo temperature
ii) ilute nitric acid at room temperature iii) oncentrated
sulphuric acid at room temperature
2+) Give distinguish test eteen phenol and ethanol
2) What are ethers o are ethers classied
25) What is metamerism Give the structure and (- name of
metamers of 2ampethoxypropane
37) Write the mechanism for acidic dehydration of ethanol
31) o is diethyl ether prepared y continuous ethericationprocess Why is the process so called
32) o ill you prepared methoxyethane from
i) l8yl halide ii) ia=omethane
33) tate the important uses of i) -henol ii) diethyl ether
8112019 Chemistry Question 12sci (1)
httpslidepdfcomreaderfullchemistry-question-12sci-1 3538
34) Write the mechanism of action of hydrogen romide on tert
utyl methyl ether
3$) Explain the folloing reactions of anisole
i) romination ii) itration iii) 6riedelrafts al8ylation iv)6riedelrafts acylation
3) Explainlt i) 0he OD group attached to aromatic ring in
phenols and ii) 0he al8oxy group in al8yl aryl ethers are ortholt
para directing and activate the aromatic ring toars electrophilic
sustitution
3+) Write the chemical eCuations for Williamson synthesis of 2
Ethoxy2methypentane starting from ethanol and 2ampethylpentan2ol
3) n organic compound ith the formula 417D3 shos
properties of ether and alcohol hen treated ith an excess of
r yields only one compound 1lt2 diromomethane Write
structural formula of ether and that of alcohol
ALDEHYDES ETONES AND CABO$YLIC
ACID
1) Write the structure and give (- names of the folloing
compounds
i) chloropropionaldehyde
ii) Rhydroxyutyraldehyde
iii) isoutyraldehyde
iv) Rmethylvaleraldehyde
8112019 Chemistry Question 12sci (1)
httpslidepdfcomreaderfullchemistry-question-12sci-1 3638
v) isopropyl methyl 8etone
vi) diisopropyl 8etone
vii) mromoen=aldehyde
viii) dien=yl 8etone
ix) divinyl 8etone
x) allyl methyl 8etone
xi) ethyl phenyl 8etone
xii) nutyrophenone
2) Write the structure of folloing compounds
i) 4ampethyl3nitroen=ophenone ii) 2ampethyl4oxopentanal iii)
3Dxopentanoic acid iv) 4chloropropiophenone v) 3
ampethoxyutanal vi) 4ydroxycyclohaxane caraldehyde
3) o ill you prepare i) propiophenone from propanenitrile ii)
4chloroen=aldehyde from 4chlorotoluene iii)
yclohaxanecaraldehyde from cyclohexylmethanol iv) 4
methoxyacetophenone from anisole v) 4methylen=aldehydefrom toluene
4) rrange the folloing compounds in the increasing order of
their oiling points
i) dimethyl etherlt ethyl alcohollt propanelt acetaldehyde
ii) acetonelt npropyl alcohollt ethyl methyl alcohol and nutane
$) What is the action of hydrogen cyanide in asic medium on i)utanone ii) 2lt4dichloroen=aldehyde
) What is the action of folloing compounds on cyclohexanone in
presence of dry hydrogen chloride
i) ethyl alcohol ii) ethylene glycol
8112019 Chemistry Question 12sci (1)
httpslidepdfcomreaderfullchemistry-question-12sci-1 3738
+) Write the structure of product in the folloing reactions
i) 322D3
ii) $2D3
) Write the structures of caronyl compounds and ammonia
derivatives that comine to give folloing imines
i)
ii)
iii)
iv)v)
vi)
5) Write the chemical eCuations for aldol condensation or
anni==aro reaction that folloing compounds undergo
i) -ropanal ii) 2ampethylpropanal iii) -entanal iv) 3
ampethylutanal v) cetophenonevi) pampethoxyen=aldehyde vii) 2ampethylcyclohaxanone viii)
chloral ix) yclopentanone
x) -henyl acetaldehyde xi) 1-henylpropan1one
17) Write the structure of the maKor product of the folloing
crossed aldol condensation
i) formaldehyde and propionaldehydeii) en=aldehyde ith acetone
11) (dentify the compounds SBlt SB and SB in the folloing
reactions and rerite the complete eCuations
i)
8112019 Chemistry Question 12sci (1)
httpslidepdfcomreaderfullchemistry-question-12sci-1 3838
ii)
12)o ill you eect folloing tostep conversions
i) -ropanal into utanone ii) utanone into ut2ene iii)
en=ene into mromoacetophenone iv) ex3yne into exan
3one v) en=oic acid into mnitroen=ylalcohol
13) o ill you convert en=aldehyde into folloing compounds
ampore than one steps may e reCuired
i) en=ophenone ii) en=oic acid iii) 3-henylpropan1ol iv)hydroxyphenylacetic acid
14) Give a chemical test to distinguish eteen folloing pairs of
compounds
i) Ethanal and propanone ii) -rpopanal and propanone iii)
-entane2one and pentane3one
1$) Write the structure and (- names of folloing caroxylicacids
i) ltRdimethylutanoic acid ii) Rphenylutyric acid iii) 1038389
chloromethylvaleric acid
8112019 Chemistry Question 12sci (1)
httpslidepdfcomreaderfullchemistry-question-12sci-1 3438
i) hloroen=ene ii) (sopropyl en=ene iii) en=ene sulphonic
acid iv) aniline
23 ) Explain the folloing
i) -henol is more acidic than phenol
ii) onitrophenol is more acidic than ocresol
iii) pnitrophenol is less volatile than onitrophenol
24) Explain the folloing reactions of phenol
i) FoleBs reaction ii) iemer0iemann reaction
2$) ame the reagents used to convert phenol intoi) picric acid ii) 2lt4lt0riromophenol iii) en=ene iv) ophenol
sulphonic acid
2) What is the action of folloing reagents on phenol i)
romine in 2 at lo temperature
ii) ilute nitric acid at room temperature iii) oncentrated
sulphuric acid at room temperature
2+) Give distinguish test eteen phenol and ethanol
2) What are ethers o are ethers classied
25) What is metamerism Give the structure and (- name of
metamers of 2ampethoxypropane
37) Write the mechanism for acidic dehydration of ethanol
31) o is diethyl ether prepared y continuous ethericationprocess Why is the process so called
32) o ill you prepared methoxyethane from
i) l8yl halide ii) ia=omethane
33) tate the important uses of i) -henol ii) diethyl ether
8112019 Chemistry Question 12sci (1)
httpslidepdfcomreaderfullchemistry-question-12sci-1 3538
34) Write the mechanism of action of hydrogen romide on tert
utyl methyl ether
3$) Explain the folloing reactions of anisole
i) romination ii) itration iii) 6riedelrafts al8ylation iv)6riedelrafts acylation
3) Explainlt i) 0he OD group attached to aromatic ring in
phenols and ii) 0he al8oxy group in al8yl aryl ethers are ortholt
para directing and activate the aromatic ring toars electrophilic
sustitution
3+) Write the chemical eCuations for Williamson synthesis of 2
Ethoxy2methypentane starting from ethanol and 2ampethylpentan2ol
3) n organic compound ith the formula 417D3 shos
properties of ether and alcohol hen treated ith an excess of
r yields only one compound 1lt2 diromomethane Write
structural formula of ether and that of alcohol
ALDEHYDES ETONES AND CABO$YLIC
ACID
1) Write the structure and give (- names of the folloing
compounds
i) chloropropionaldehyde
ii) Rhydroxyutyraldehyde
iii) isoutyraldehyde
iv) Rmethylvaleraldehyde
8112019 Chemistry Question 12sci (1)
httpslidepdfcomreaderfullchemistry-question-12sci-1 3638
v) isopropyl methyl 8etone
vi) diisopropyl 8etone
vii) mromoen=aldehyde
viii) dien=yl 8etone
ix) divinyl 8etone
x) allyl methyl 8etone
xi) ethyl phenyl 8etone
xii) nutyrophenone
2) Write the structure of folloing compounds
i) 4ampethyl3nitroen=ophenone ii) 2ampethyl4oxopentanal iii)
3Dxopentanoic acid iv) 4chloropropiophenone v) 3
ampethoxyutanal vi) 4ydroxycyclohaxane caraldehyde
3) o ill you prepare i) propiophenone from propanenitrile ii)
4chloroen=aldehyde from 4chlorotoluene iii)
yclohaxanecaraldehyde from cyclohexylmethanol iv) 4
methoxyacetophenone from anisole v) 4methylen=aldehydefrom toluene
4) rrange the folloing compounds in the increasing order of
their oiling points
i) dimethyl etherlt ethyl alcohollt propanelt acetaldehyde
ii) acetonelt npropyl alcohollt ethyl methyl alcohol and nutane
$) What is the action of hydrogen cyanide in asic medium on i)utanone ii) 2lt4dichloroen=aldehyde
) What is the action of folloing compounds on cyclohexanone in
presence of dry hydrogen chloride
i) ethyl alcohol ii) ethylene glycol
8112019 Chemistry Question 12sci (1)
httpslidepdfcomreaderfullchemistry-question-12sci-1 3738
+) Write the structure of product in the folloing reactions
i) 322D3
ii) $2D3
) Write the structures of caronyl compounds and ammonia
derivatives that comine to give folloing imines
i)
ii)
iii)
iv)v)
vi)
5) Write the chemical eCuations for aldol condensation or
anni==aro reaction that folloing compounds undergo
i) -ropanal ii) 2ampethylpropanal iii) -entanal iv) 3
ampethylutanal v) cetophenonevi) pampethoxyen=aldehyde vii) 2ampethylcyclohaxanone viii)
chloral ix) yclopentanone
x) -henyl acetaldehyde xi) 1-henylpropan1one
17) Write the structure of the maKor product of the folloing
crossed aldol condensation
i) formaldehyde and propionaldehydeii) en=aldehyde ith acetone
11) (dentify the compounds SBlt SB and SB in the folloing
reactions and rerite the complete eCuations
i)
8112019 Chemistry Question 12sci (1)
httpslidepdfcomreaderfullchemistry-question-12sci-1 3838
ii)
12)o ill you eect folloing tostep conversions
i) -ropanal into utanone ii) utanone into ut2ene iii)
en=ene into mromoacetophenone iv) ex3yne into exan
3one v) en=oic acid into mnitroen=ylalcohol
13) o ill you convert en=aldehyde into folloing compounds
ampore than one steps may e reCuired
i) en=ophenone ii) en=oic acid iii) 3-henylpropan1ol iv)hydroxyphenylacetic acid
14) Give a chemical test to distinguish eteen folloing pairs of
compounds
i) Ethanal and propanone ii) -rpopanal and propanone iii)
-entane2one and pentane3one
1$) Write the structure and (- names of folloing caroxylicacids
i) ltRdimethylutanoic acid ii) Rphenylutyric acid iii) 1038389
chloromethylvaleric acid
8112019 Chemistry Question 12sci (1)
httpslidepdfcomreaderfullchemistry-question-12sci-1 3538
34) Write the mechanism of action of hydrogen romide on tert
utyl methyl ether
3$) Explain the folloing reactions of anisole
i) romination ii) itration iii) 6riedelrafts al8ylation iv)6riedelrafts acylation
3) Explainlt i) 0he OD group attached to aromatic ring in
phenols and ii) 0he al8oxy group in al8yl aryl ethers are ortholt
para directing and activate the aromatic ring toars electrophilic
sustitution
3+) Write the chemical eCuations for Williamson synthesis of 2
Ethoxy2methypentane starting from ethanol and 2ampethylpentan2ol
3) n organic compound ith the formula 417D3 shos
properties of ether and alcohol hen treated ith an excess of
r yields only one compound 1lt2 diromomethane Write
structural formula of ether and that of alcohol
ALDEHYDES ETONES AND CABO$YLIC
ACID
1) Write the structure and give (- names of the folloing
compounds
i) chloropropionaldehyde
ii) Rhydroxyutyraldehyde
iii) isoutyraldehyde
iv) Rmethylvaleraldehyde
8112019 Chemistry Question 12sci (1)
httpslidepdfcomreaderfullchemistry-question-12sci-1 3638
v) isopropyl methyl 8etone
vi) diisopropyl 8etone
vii) mromoen=aldehyde
viii) dien=yl 8etone
ix) divinyl 8etone
x) allyl methyl 8etone
xi) ethyl phenyl 8etone
xii) nutyrophenone
2) Write the structure of folloing compounds
i) 4ampethyl3nitroen=ophenone ii) 2ampethyl4oxopentanal iii)
3Dxopentanoic acid iv) 4chloropropiophenone v) 3
ampethoxyutanal vi) 4ydroxycyclohaxane caraldehyde
3) o ill you prepare i) propiophenone from propanenitrile ii)
4chloroen=aldehyde from 4chlorotoluene iii)
yclohaxanecaraldehyde from cyclohexylmethanol iv) 4
methoxyacetophenone from anisole v) 4methylen=aldehydefrom toluene
4) rrange the folloing compounds in the increasing order of
their oiling points
i) dimethyl etherlt ethyl alcohollt propanelt acetaldehyde
ii) acetonelt npropyl alcohollt ethyl methyl alcohol and nutane
$) What is the action of hydrogen cyanide in asic medium on i)utanone ii) 2lt4dichloroen=aldehyde
) What is the action of folloing compounds on cyclohexanone in
presence of dry hydrogen chloride
i) ethyl alcohol ii) ethylene glycol
8112019 Chemistry Question 12sci (1)
httpslidepdfcomreaderfullchemistry-question-12sci-1 3738
+) Write the structure of product in the folloing reactions
i) 322D3
ii) $2D3
) Write the structures of caronyl compounds and ammonia
derivatives that comine to give folloing imines
i)
ii)
iii)
iv)v)
vi)
5) Write the chemical eCuations for aldol condensation or
anni==aro reaction that folloing compounds undergo
i) -ropanal ii) 2ampethylpropanal iii) -entanal iv) 3
ampethylutanal v) cetophenonevi) pampethoxyen=aldehyde vii) 2ampethylcyclohaxanone viii)
chloral ix) yclopentanone
x) -henyl acetaldehyde xi) 1-henylpropan1one
17) Write the structure of the maKor product of the folloing
crossed aldol condensation
i) formaldehyde and propionaldehydeii) en=aldehyde ith acetone
11) (dentify the compounds SBlt SB and SB in the folloing
reactions and rerite the complete eCuations
i)
8112019 Chemistry Question 12sci (1)
httpslidepdfcomreaderfullchemistry-question-12sci-1 3838
ii)
12)o ill you eect folloing tostep conversions
i) -ropanal into utanone ii) utanone into ut2ene iii)
en=ene into mromoacetophenone iv) ex3yne into exan
3one v) en=oic acid into mnitroen=ylalcohol
13) o ill you convert en=aldehyde into folloing compounds
ampore than one steps may e reCuired
i) en=ophenone ii) en=oic acid iii) 3-henylpropan1ol iv)hydroxyphenylacetic acid
14) Give a chemical test to distinguish eteen folloing pairs of
compounds
i) Ethanal and propanone ii) -rpopanal and propanone iii)
-entane2one and pentane3one
1$) Write the structure and (- names of folloing caroxylicacids
i) ltRdimethylutanoic acid ii) Rphenylutyric acid iii) 1038389
chloromethylvaleric acid
8112019 Chemistry Question 12sci (1)
httpslidepdfcomreaderfullchemistry-question-12sci-1 3638
v) isopropyl methyl 8etone
vi) diisopropyl 8etone
vii) mromoen=aldehyde
viii) dien=yl 8etone
ix) divinyl 8etone
x) allyl methyl 8etone
xi) ethyl phenyl 8etone
xii) nutyrophenone
2) Write the structure of folloing compounds
i) 4ampethyl3nitroen=ophenone ii) 2ampethyl4oxopentanal iii)
3Dxopentanoic acid iv) 4chloropropiophenone v) 3
ampethoxyutanal vi) 4ydroxycyclohaxane caraldehyde
3) o ill you prepare i) propiophenone from propanenitrile ii)
4chloroen=aldehyde from 4chlorotoluene iii)
yclohaxanecaraldehyde from cyclohexylmethanol iv) 4
methoxyacetophenone from anisole v) 4methylen=aldehydefrom toluene
4) rrange the folloing compounds in the increasing order of
their oiling points
i) dimethyl etherlt ethyl alcohollt propanelt acetaldehyde
ii) acetonelt npropyl alcohollt ethyl methyl alcohol and nutane
$) What is the action of hydrogen cyanide in asic medium on i)utanone ii) 2lt4dichloroen=aldehyde
) What is the action of folloing compounds on cyclohexanone in
presence of dry hydrogen chloride
i) ethyl alcohol ii) ethylene glycol
8112019 Chemistry Question 12sci (1)
httpslidepdfcomreaderfullchemistry-question-12sci-1 3738
+) Write the structure of product in the folloing reactions
i) 322D3
ii) $2D3
) Write the structures of caronyl compounds and ammonia
derivatives that comine to give folloing imines
i)
ii)
iii)
iv)v)
vi)
5) Write the chemical eCuations for aldol condensation or
anni==aro reaction that folloing compounds undergo
i) -ropanal ii) 2ampethylpropanal iii) -entanal iv) 3
ampethylutanal v) cetophenonevi) pampethoxyen=aldehyde vii) 2ampethylcyclohaxanone viii)
chloral ix) yclopentanone
x) -henyl acetaldehyde xi) 1-henylpropan1one
17) Write the structure of the maKor product of the folloing
crossed aldol condensation
i) formaldehyde and propionaldehydeii) en=aldehyde ith acetone
11) (dentify the compounds SBlt SB and SB in the folloing
reactions and rerite the complete eCuations
i)
8112019 Chemistry Question 12sci (1)
httpslidepdfcomreaderfullchemistry-question-12sci-1 3838
ii)
12)o ill you eect folloing tostep conversions
i) -ropanal into utanone ii) utanone into ut2ene iii)
en=ene into mromoacetophenone iv) ex3yne into exan
3one v) en=oic acid into mnitroen=ylalcohol
13) o ill you convert en=aldehyde into folloing compounds
ampore than one steps may e reCuired
i) en=ophenone ii) en=oic acid iii) 3-henylpropan1ol iv)hydroxyphenylacetic acid
14) Give a chemical test to distinguish eteen folloing pairs of
compounds
i) Ethanal and propanone ii) -rpopanal and propanone iii)
-entane2one and pentane3one
1$) Write the structure and (- names of folloing caroxylicacids
i) ltRdimethylutanoic acid ii) Rphenylutyric acid iii) 1038389
chloromethylvaleric acid
8112019 Chemistry Question 12sci (1)
httpslidepdfcomreaderfullchemistry-question-12sci-1 3738
+) Write the structure of product in the folloing reactions
i) 322D3
ii) $2D3
) Write the structures of caronyl compounds and ammonia
derivatives that comine to give folloing imines
i)
ii)
iii)
iv)v)
vi)
5) Write the chemical eCuations for aldol condensation or
anni==aro reaction that folloing compounds undergo
i) -ropanal ii) 2ampethylpropanal iii) -entanal iv) 3
ampethylutanal v) cetophenonevi) pampethoxyen=aldehyde vii) 2ampethylcyclohaxanone viii)
chloral ix) yclopentanone
x) -henyl acetaldehyde xi) 1-henylpropan1one
17) Write the structure of the maKor product of the folloing
crossed aldol condensation
i) formaldehyde and propionaldehydeii) en=aldehyde ith acetone
11) (dentify the compounds SBlt SB and SB in the folloing
reactions and rerite the complete eCuations
i)
8112019 Chemistry Question 12sci (1)
httpslidepdfcomreaderfullchemistry-question-12sci-1 3838
ii)
12)o ill you eect folloing tostep conversions
i) -ropanal into utanone ii) utanone into ut2ene iii)
en=ene into mromoacetophenone iv) ex3yne into exan
3one v) en=oic acid into mnitroen=ylalcohol
13) o ill you convert en=aldehyde into folloing compounds
ampore than one steps may e reCuired
i) en=ophenone ii) en=oic acid iii) 3-henylpropan1ol iv)hydroxyphenylacetic acid
14) Give a chemical test to distinguish eteen folloing pairs of
compounds
i) Ethanal and propanone ii) -rpopanal and propanone iii)
-entane2one and pentane3one
1$) Write the structure and (- names of folloing caroxylicacids
i) ltRdimethylutanoic acid ii) Rphenylutyric acid iii) 1038389
chloromethylvaleric acid
8112019 Chemistry Question 12sci (1)
httpslidepdfcomreaderfullchemistry-question-12sci-1 3838
ii)
12)o ill you eect folloing tostep conversions
i) -ropanal into utanone ii) utanone into ut2ene iii)
en=ene into mromoacetophenone iv) ex3yne into exan
3one v) en=oic acid into mnitroen=ylalcohol
13) o ill you convert en=aldehyde into folloing compounds
ampore than one steps may e reCuired
i) en=ophenone ii) en=oic acid iii) 3-henylpropan1ol iv)hydroxyphenylacetic acid
14) Give a chemical test to distinguish eteen folloing pairs of
compounds
i) Ethanal and propanone ii) -rpopanal and propanone iii)
-entane2one and pentane3one
1$) Write the structure and (- names of folloing caroxylicacids
i) ltRdimethylutanoic acid ii) Rphenylutyric acid iii) 1038389
chloromethylvaleric acid