Class 12 Chemistry Chapter 13 Amines Multiple Choice Questions (MCQs) and Answers | Class 12 Chemistry Chapter 13 Amines Quiz

Questions

1 Reduction of aromatic nitro-compounds using Sn and HCl gives

A aromatic primary amines

B aromatic secondary amines

C aromatic tertiary amines

D aromatic amides

View Answer

Answer:aromatic primary amines

2 When aniline is heated with cone. H₂SO₄ at 455-475 K, it forms

A aniline hydrogensulphate

B sulphanilic acid

C amino benzene sulphonic acid

D benzenesulphonic acid

View Answer

Answer:sulphanilic acid

3 Which of the following compounds cannot be identified by carbylamine test?

A CH₃CH₂NH₂

B (CH₃)₂CHNH₂

C C₆H₅NH₂

D C₆H₅NHC₆H₅

View Answer

Answer: C₆H₅NHC₆H₅

4 What is obtained when benzoyl chloride reacts with aniline in the presence of sodium hydroxide?

A Benzoic acid

B Benzanilide

C Acetanilide

D Azobenzene

View Answer

Answer: Benzanilide

5 Which of the following compounds reacts with NaNO₂ and HCl at 0-4°C to give alcohol/phenol?

A C₆H₅NH₂

B C₂H₅NH₂

C CH₃NHCH₃

D C₆H₅NHCH₃

View Answer

Answer: C₂H₅NH₂

6 Which of the following has highest pK_b value?

A (CH₃)₃CNH₂

B NH₃

C (CH₃)₂MH

D CH₃NH₃

View Answer

Answer:NH₃

7 Acetylation of a secondary amine in alkaline medium yields

A N, N-dialkyl acetamide

B N, N-dialkyl amine

C N, N-dialkyl amide

D acetyl dialkyl amine

View Answer

Answer:N, N-dialkyl acetamide

8 The amines are basic in nature, hence they form salts with hydrochloric acid. Which of the following will be insoluble in dil. HCl?

A C₆H₅NH₃

B (C₆H₅)₃N

C C₂H₅NH₂

D CH₃NHCH₃

View Answer

Answer:(C₆H₅)₃N

9 Primary, secondary and tertiary amines may be separated by using

A iodoform

B diethyloxalate

C benzene sulphonyl chloride

D acetyl chloride

View Answer

Answer:benzene sulphonyl chloride

10 An organic compound (X) was treated with sodium nitrite and HCl in ice cold conditions. Bubbles of nitrogen gas were seen coming out. The compound (X) may be

A a secondary aliphatic amine

B a primary aromatic amine

C a primary aliphatic amine

D a tertiary amine

View Answer

Answer:a primary aliphatic amine

11 Among the following:
I. CH₃NH₅
II. (CH₃)₂NH
III. (CH₃)₃N
IV. C₆H₅NH₂
Which will give the positive carbylamine test?

A I and II

B I and IV

C II and IV

D II and III

View Answer

Answer:I and IV

12 Cyclohexyiamine is stronger base than aniline become

A in aniline electron pair is involved in conjugation

B in cyclohexyiamine electron pair is involve conjugation

C in aniline-NH, group is protonated

D in cyclohexyiamine nitrogen has a negative charge

View Answer

Answer: in aniline electron pair is involved in conjugation

13 The strongest base among the following is

A C₆H₅NH₃

B p-NH₂C₆H₄NH

C m-NO₂C₆H₄NH₂

D C₆H₅CH₂NH₂

View Answer

Answer: C₆H₅CH₂NH₂

14 Nitrogen atom of amino group is ………. hybridised

A sp

B sp²

C sp³

D sp³d

View Answer

Answer:sp³

15 C₃H₈N cannot represent

A 1° ammine

B 2° ammine

C 3° ammine

D quartemary ammonium salt

View Answer

Answer:quartemary ammonium salt

16 Identify the correct IUPAC name

A (CH₃CH₂)₂NCH₃ = N-Ethyl-N-methylethanamine

B (CH₃)₃CNH₂ = 2-methylpropan-2-amine

C CH₃NHCH (CH₃)₂ = N-Methylpropan-2-amine

D (CH₃)₂CHNH₂ = 2, 2-Dimethyl-N-propanamine

View Answer

Answer: (CH₃CH₂)₂NCH₃ = N-Ethyl-N-methylethanamine

17 The most convenient method to prepare primary (i Amine) amine containing one carbon atom less is

A Gabriel phthalmidie synthesis

B Reductive amination of aldehydes

C Hofmann bromamide reaction

D Reduction of isonitriles

View Answer

Answer: Hofmann bromamide reaction

18 When excess of ethyl iodide is treated with ammonia, the product is

A ethylamine

B diethylamine

C triethylamine

D tetrathylammonium iodide

View Answer

Answer:tetrathylammonium iodide

19 Amides may be converted into amines by a reaction named after

A Hofmann Bromide

B Claisen

C Perkin

D Kekule

View Answer

Answer:Hofmann Bromide

20 Reduction of CH₃CH₂NC with hydrogen in presence of Ni or Pt as catalvst gives

A CH₃CH₂NH₂

B CH₃CH₂NHCH₃

C CH₃CH₂NHCH₂CH₃

D (CH₃)₃N

View Answer

Answer: CH₃CH₂NHCH₃

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