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- 1. AMU PAST PAPERSCHEMISTRY- UNSOLVED PAPER - 1996
- 2. SECTION I Single Correct Answer Type There are five parts in
this question. Four choices are given for each part and one of them
is correct. Indicate you choice of the correct answer for each part
in your answer-book by writing the letter (a), (b), (c) or (d)
whichever is appropriate
- 3. 01 Problem Bauxite is an acid mineral of : a. Boron b.
Barium c. Aluminum d. Bismuth
- 4. 02 Problem Thallium shows different oxidation state because:
a. Of its amphoteric character b. Of its high reactivity c. It is a
transition metal d. Of inert-pair effect
- 5. 03 Problem Which is most amphoteric? a. MgO b. Na2O c. CaO
d. AI2O3
- 6. 04 Problem The wire in the flash bulb is made up of : a. Mg
b. Ba c. Ag d. Cu
- 7. 05 Problem Which of an ore of potassium? a. Crinoline b.
Dolomite c. Bauxite d. Carnality
- 8. 06 Problem The basic character of hydrides of Vth group
elements decreases in the order: a. SbH3>PH3>AsH3>NH3 b.
NH3>SbH3>PH3>AsH3 c. NH3>PH3>AsH3>SbH3 d.
SbH3>AsH3>PH3>NH3
- 9. 07 Problem Which of the following has maximum value of
cation/anion ratio? a. KCI b. NaCI c. CaF2 d. MgCI2
- 10. 08 Problem HCI is added to the following oxides which one
would give H2O2 a. PbO2 b. MnO2 c. BaO d. None of these
- 11. 09 Problem Which of the following pair of atomic numbers
represents s-blocks element? a. 6,2 b. 7,15 c. 3,20 d. 9,17
- 12. 10 Problem Which one of the following is smallest in size?
a. O2- b. N3- c. F- d. Na+
- 13. 11 Problem Which one of the following of correct order of
the size? a. Na
- 14. 12 Problem Electron affinity of noble gas element is : a.
Low b. High c. Very high d. Zero
- 15. 13 Problem Which one of the following benefication process
is used for the minerals AI2O3.2H2O? a. Leaching b. Liquidation c.
Froth floatation d. Magnetic separation
- 16. 14 Problem The process of converting hydrated alumina is
called: a. Smelting b. Roasting c. Calcinations d. Dressing
- 17. 15 Problem The lightest metal is: a. Fe b. Li c. Ag d.
Cu
- 18. 16 Problem ( NH4 )2 SO4 n(CF2== C X Here, X is : a. RMMA b.
PVC c. PAN d. None of these
- 19. 17 Problem Amongest the following. The strongest base is :
a. Aniline b. 2.4.6 -Trinitron aniline c. N , N diethyl aniline d.
2, 4, 6- trim ethyl aniline
- 20. 18 Problem Nitrosoamine (R2N-N=0) are insoluble in water.
On heating them with conc. H2SO4 they secondary amines. The
reaction is called: a. Etards reaction b. Fries reaction c.
Liberman nitroso reaction d. Perkins reaction
- 21. 19 Problem Benedict solution provides: a. Li+ b. BO2+ c.
Cu2+ d. Ag+
- 22. 20 Problem Acetaldoxime reacts with P2O5 to to give: a.
Ethyl cyanate b. Methyy cyanide c. Ethyl cyanide d. Mixture of all
these
- 23. 21 Problem The colour p-amino azo benzene is: a. Cango red
b. Orange c. Magenta d. Indigo
- 24. 22 Problem With Tollens reagent a silver mirror will be
formed by a. Acetic acid b. Acetaldehyde c. Acetyl chloride d.
Acetone
- 25. 23 Problem Ethyl alcohol is heated with red phosphorus and
HI then which of the foll0woing is formed? a. CH4 b. C2H4 c. C2H6
d. C2H5
- 26. 24 Problem When charcoal burns is jar it forms the gases
carbon monoxide and carbon dioxide: 2C + O2 2CO 2COs + O2 2CO2
These reaction are called: a. Substitution b. Ionization c.
Oxidation-reduction d. Decomposition
- 27. 25 Problem Which of the statement is wrong among the
following? a. Habers process of NG3 requires iron as catalyst b.
Hydrogenation of oil uses iron as catalyst c. Oxidation of SO2 to
SO3 required V2O5 d. Frieda-crafts reaction uses anhydrous
ALCL3
- 28. 26 Problem The chief source of bromine is : a. Sea-weeds b.
Chile-salt petre c. Carnalite d. Sea water
- 29. 27 Problem Which of the following gas cannot be dried by
canc. H2SO4? a. Ph3 b. NO c. H2 d. CO2
- 30. 28 Problem If NaOH is added to an aqueous solution of Zn2+
ions white precipitate appears and on adding excess NaOH. The
precipitate dissolves. In solution zinc is in the : a. Anionic part
b. Cationic part c. Both in cationic and anionic part d. There is
no zinc left in the solution
- 31. 29 Problem The bubble of impure phosphene burns into flame
as soon as it comes in contact with air and produces a ring of
white smoke. This smoke is due to: a. The formation of phosphorus
nitrite b. The oxidation of phosphene to pentoxide c. The formation
of phosphorus phosphene d. The carbon particles present in the
phosphene
- 32. 30 Problem Which of the following element is responsible
for oxidation of water to O2 in biological processes? a. Mn b. Cu
c. Mo d. Fe
- 33. 31 Problem Plaster of paris hardens by a. Changing into
CaCO3 b. Combining with water c. Giving out water d. Giving off
CO2
- 34. 32 Problem 5.6 L of a gas at S.T.P. weights equal to 8g.The
vapour density of gas is a. 16 b. 40 c. 08 d. 32
- 35. 33 Problem How many ions are produced from [ Co(NH3)6]Cl3
in solution: a. 4 b. 2 c. 6 d. 3
- 36. 34 Problem H For the reaction, CH3COCH3+I2 products The
rate is governed by expression dx [acetone] [H+] The order w.r.t I2
is k dt a. 1 b. 0 c. 3 d. 2
- 37. 35 Problem 1mL of H2O solution give 10 mL of O2 at NTP. It
is a. 20 vol. H2O2 b. 10 vol. H2O2 c. 40 vol. H2O2 d. 30 vol.
H2O2
- 38. 36 Problem The pH of a solution whose [OH-] = 10-7 M is :
a. 14 b. 0 c. -7 d. 7
- 39. 37 Problem Which of the following carbonates is least
soluble in water? a. NaHCO3 b. KHCO3 c. CaCO3 d. Na2SO4
- 40. 38 Problem Hydrogen atoms are held together to form
hydrogen molecule by: a. Ionic bond b. Detive bond c. Hydrogen bond
d. Covalent bond
- 41. 39 Problem The atoms in which X are equal are called
isotones. Here X is : a. Mass number b. Atomic number c. Neutrons
d. Electrons
- 42. 40 Problem In which of the following group of periodic
table mp/bp increases down the group? a. Group 1 b. Group 2 c.
Group 17 d. Group 13
- 43. 41 Problem Bleaching powder is an example of ; a. A complex
salt b. An acidic salt c. A mixed salt d. A double salt
- 44. 42 Problem Dry ice is : a. Solid NH3 b. Solid SO2 c. Dry
CO2 d. Solid CO2
- 45. 43 Problem The classification of element by establishing a
relationship between atomic weight and atomic complex volume was
attemped by: a. Raman b. Meyer c. Dobernier d. New lands
- 46. 44 Problem Which one of the following gases turns potassium
dichromate paper green? a. NCI b. SO2 c. NH3 d. NO2
- 47. 45 Problem The partial pressure of hydrogen in a flask
containing 2g of H2 and 32g of SO2 is: 1 a. of total pressure 16 11
b. 2 of total pressure 2 c. 3 of total pressure 1 d. 8 of total
pressure
- 48. 46 Problem The low relating to the diffusion of gas was
given by: a. Einstein b. Boyles c. Graham d. Charles
- 49. 47 Problem The number of unpaired electrons in chromium
(atomic number-24) is: a. 6 b. 5 c. 2 d. 3
- 50. 48 Problem The exothermic reactions: a. HR=HP b. HRHP d.
None of these
- 51. 49 Problem Solid CH4 is: a. Ionic solid b. Covalent solid
c. Molecular solid d. Does not exist
- 52. 50 Problem Which one of the following compounds is found
abundantly in nature? a. Maltose b. Fructose c. Cellulose d.
glucose
- 53. FOR SOLUTIONS VISIT WWW.VASISTA.NET