A)N 66 - iBioKaareWhat is the IUPAC name of the compound shown? A)N-methylethylamine B)2-propylamine C)1-methylethylamine D)propylamine E)isopropylamine 2)Which molecule is N,N-dimethylpropylamine?

1) What is the IUPAC name of the compound shown?

A) N-methylethylamine

B) 2-propylamine

C) 1-methylethylamine

D) propylamine

E) isopropylamine

2) Which molecule is N,N-dimethylpropylamine?

A) CH3CH2CH2CH2CH2NH2

B)

C)

D)

E)

3) Which molecule shown is trimethylamine?


B)

C)

D)

E)

AIIMS,CBSE,AIPMT, AFMC,Bio.Tech & PMT, Contact :- 9438559863, Mail at :- [email protected],www.ibiokaare.com,compiled by AKB

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4) Which molecule shown is N,N-dimethylethylamine?


B)

C)

D)

E)

5) When the nitrogen atom in an organic compound has four covalent bonds, it is called a

A) quaternary ammonium ion.

B) tertiary amine.

C) secondary amine.

D) tetraammine.

E) primary amine.

6) All of the following compounds are amines except

A) histamine.

B) amphetamine.

C) aniline.

D) aspirin.

E) caffeine.

7) Which compound is a secondary amine?

A) diethylamine

B) trimethylamine

C) N-ethyl-N-methylpropylamine

D) N,N-dimethylethylamine

E) isopropylamine

8) Which compound is a primary amine?

A) trimethylamine

B) isopropylamine

C) diethylamine

D) N-ethyl-N-methylpropylamine

E) N,N-dimethylethylamine


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9) Which of the following molecules is an example of a primary amine?

A)

B)

C)

D)

E)

10) Which of the following molecules is an example of a secondary amine?

A)

B)

C)

D)

E)


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11) Which molecule is a tertiary amine?

A)

B)

C)

D)

E)

12) Amines are classified by ________

A) the number of hydrogens attached to the nitrogen.

B) the number of alkyl groups attached to the nitrogen.

C) the number of carbons attached to the carbon bonded to the nitrogen.

D) the number of carbons present in the molecule.

E) none of the above

13) Amines are most similar in chemical structure and behavior to

A) a primary alcohol.

B) the hydronium ion.

C) water.

D) ammonia.

E) sodium hydroxide.

14) Amines can be considered organic derivatives of the inorganic compound

A) water.

B) carbon dioxide.

C) ammonia.

D) sodium hydroxide.

E) none of these

15) Which organic functional group is important for its basic properties?

A) amine B) aromatic C) carbonyl D) phenol E) hydroxyl


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16) All of the following are properties of amines except

A) They react with acids to form amides.

B) They frequently have offensive odors.

C) Those that can form hydrogen bonds have higher boiling points than expected for their

molecular weight.

D) Those with low molecular weights are soluble in water.

E) They act as bases in many reactions.

17) Which amine has the lowest boiling point?

A)

B)

C)

D)

E)

18) Which amine has the highest boiling point?

A)

B)

C)

D)

E)


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19) Which class of amines can form intermolecular hydrogen bonds?

A) 1°

B) 3°

C) 2°

D) A and B

E) all of the above

20) Arrange the following compounds in order of increasing boiling point. List and describe

the criteria that must be considered in answering this question.

Compounds

1. CH3-CH2-CH2-CH2OH 2. CH3-CH2-CH2-NH-CH3

3. CH3-CH2-CH2- CH2-CH3

4.

5.

MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.

21) Which molecule listed is heterocyclic?

A) benzoic acid

B) pyridine

C) aniline

D) naphthalene

E) phenol

22) Which molecule is a heterocyclic compound?

A)

B)

C)

D)

E) none of these


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23) The reaction that occurs between an amine and an acid is best illustrated by

A) (CH3)2NH + HCl → (CH3)2NH2+ + OH-.

B) (CH3)2NH + HCl → (CH3)2N+Cl-.

C) (CH3)2NH + HCl → (CH3)2NH Cl- + H3O+.

D) (CH3)2NH + HCl → (CH3)2NH2+Cl-.

E) (CH3)2NH + H2O → (CH3)2N + H3O+.

24) Which formula best represents the form an amine takes in acidic solution?

A) RNH3+ B) RNH- C) RNH2 D) RNH2+ E) RNH2

25) Which formula best represents the form an amine takes in basic solution?

A) RNH- B) RNH3+ C) RNH2- D) RNH2+ E) RNH

26) When an amine behaves as a base it ________ a hydrogen ion to form a(an) ________ ion.

A) loses; hydronium

B) loses; ammonium

C) gains; hydronium

D) loses; hydroxide

E) gains; ammonium

27) The reaction of an amine with water is best represented by

A) R-NH2 + H2O R-N H+

3 + OH-.

B) R-NH2 + 2 H2O R-N2- + 2 H3O+.

C) R-NH2 + H2O R-N2- + M+ + H3O+.

D) R-NH2 + 2 H2O R- N2+4 + 2 OH-.

E) R-NH2 + H2O R-NH- + H3O+.

28) What is the most important physical property of amines?

A) they are weak bases

B) they are oxidizing acids

C) they are weak acids

D) they are strong acids

E) they are strong bases

29) Which type of amine will react with mineral acids to form soluble ammonium salts?

A) 3° B) 2° C) 1°

D) A and B E) A, B and C

30) Which compound is an example of an amine salt?

A) sulfanilamide

B) methylammonium chloride

C) histamine

D) pyridoxine

E) thioacetamide


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a) b)

c) d) C

N

C

O

CH2Cl

O

CH2

a) b) c) d)

CH2NH2

34.

31. An organic compound A upon reacting with NH3 gives B. On heating B gives C. C in

32. The major product of the following reaction is

presence of KOH reacts with Br2 to given CH3–CH2–NH2. A is: a) CH3COOH b) CH3CH2CH2COOH c) CH3CH(CH3)-COOH d) CH3CH2COOH

treatment with NaNO2 in dil. HCl followed by addition to an alkaline solution of β-naphthol is.

33. Amongst the compounds given, the one that would form a brilliant coloured dye on

CH3NH2 CHCl3 KOH nitrogen containing compound + KCl + H2O. Nitrogen containing compound is.

a) CH3–C N b) CH3–NH–CH3 c) d) CH3 N C CaH3 N C


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a) b)

c) d)

a) b) CH2 = CH2 c) d)

35.

36. Toluene is nitrated and the resulting product is reduced with tin and hydrochloric acid. The product so obtained is diazotized and then heated with cuprous bromide. The reaction mixture so formed contains

a) Mixture of o- and p-bromotoluenes b) Mixture of o- and p-dibromobenzenes c) Mixture of o- and p-bromoanilines d) Mixture of o- and m-bromotoluenes 37. Which one of the following is the strongest base in aqueous solution? a) Trimethylamine b) Aniline c) Dimethylamine d) Methylamine 38. Reaction of cyclohexanone with dimethylamine in the presence of catalytic amount of

an acid forms a compound of water during the reaction is continuously removed. The compound is generally known as

a) An amine b) An imine c) An enamine d) A Schiff’s base

39.

The alkene formed as a major product in the above elimination reaction is


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a) b)

[X] will be:

a) b)

a) Cyanide b) Isocyanide c) Azo compound d) 2R N CCl

( )6 5 3 2 ( ) ;i NaOH

iiC H CHO CH NO X [X] will be; a) 6 5 2C H CHOH CH CHO b) 6 5 2C H CH OH c) 6 5C H COOH d) 6 5 2C H CH CH NO

40. In the chemical reactions,

c) d) (a) and (c) 42. In the given reaction,

a) Fluorobenzene and phenol b) Benzene diazonium chloride and benzonitrile c) Nitrobenzene and chlorobenzene d) Phenol and bromobenzene 41. Which of the following will NOT give alkyl cyanide on treatment with P2O5?

Compounds A and B respectively are

chloroform and KOH. The test is positive if bad small is produced. Identify the product that causes the bad smell:

c) d) 43. The characteristic test of primary alkyl amines involves reaction of the amines with

44. In the given reaction sequence


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6 5 2C H NO b) 3 2 2CH CH NO

4/3 2 2 ; [X] will be:

a) 3 2CH CH NHOH b) 3 2CH CH NO c) 3 2CH CH OH

[Y] will be:

a) b)

c) d) 46. Arrange given amines in decreasing order of their basicity:

48. In the reaction

c) d)

45. Which one of the following compounds gives blue colour with base? a)

CH CH NO Zn NH Cl X

49. Which one of the following compounds on reduction will not give primary amine? a) R–NO2 b) Ar–NO2 c) R–CN d) R–NC

47. Nitrobenzene can be converted into N-phenyllhydroxylamine by: a) LiAlH4 b) NaBH4 c) Zn/NH4Cl/HOH d) Fe/Steam

a) I > II > III b) I > III > II c) III > II > I d) II > I > III

CH3 CH2 NH2 d)

50. In the given reaction:


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1) A

2) D

3) B

4) C

5) A

6) D

7) A

8) B

9) A

10) E

11) B

12) B

13) D

14) C

15) A

16) A

17) D

18) B

19) D

21) B

22) E

23) D

24) A

25) E

26) E

27) A

28) A

29) E

30) B

20) 3 < 4 < 2 < 5 < 1;

31 32 33 34 35 36 37 38 39 40 d a c b a a c c b b 41 42 43 44 45 46 47 48 49 50 d a b d c a c a d a


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Documents

A)N 66 - iBioKaareWhat is the IUPAC name of the compound shown? A)N-methylethylamine B)2-propylamine C)1-methylethylamine D)propylamine E)isopropylamine 2)Which molecule is N,N-dimethylpropylamine?