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Amines · Question 58

AIPMT 2000MCQMedium📈 Topic in 62% papers+4−1
1

A reduction B CHCl3/KOH C reduction N-methylaniline then A is

  1. [figure]
  2. [figure]
  3. CH3NH2
  4. [figure]

Answer

(2) [figure]

Solution

Working backwards:

∵ Reduction of an isocyanide gives a secondary amine containing a methyl group ⇒ C is phenyl isocyanide, C6H5NC, which gives N-methylaniline, C6H5NHCH3.

∵ As per NCERT, a primary amine heated with chloroform and ethanolic KOH forms an isocyanide (carbylamine reaction) ⇒ B is aniline, C6H5NH2.

∵ Aniline is obtained by reduction of nitrobenzene ⇒ A is nitrobenzene.

[figure]

Answer: (2)

AIPMT 2000

Keep practising — Amines

2

The major product Z formed in the following sequence of reactions is : [figure] (X = monochlorinated product)

  1. C2H5-N=N-OH
  2. C2H5OH
  3. C2H5NO2
  4. C2H5NH2
NEET (UG) 2026
3

Select the reagents that reduce nitriles to primary amines. Choose the correct answer from the options given below.

  1. A, B and C only
  2. A, D and E only
  3. A, C and D only
  4. B, D and E only
NEET (UG) 2026
4

Given below are two statements: In light of the above statements, choose the most appropriate answer from the options given below.

  1. Statement I is incorrect but Statement II is correct
  2. Both Statement I and Statement II are correct
  3. Both Statement I and Statement II are incorrect
  4. Statement I is correct but Statement II is incorrect
RE-NEET (UG) 2026
5

Identify the reactions which give aniline as the major product. Choose the correct answer from the options given below.

  1. C and D only
  2. A and B only
  3. B and D only
  4. A and C only
RE-NEET (UG) 2026
6

The correct order of decreasing basic strength of the given amines is:

  1. N-ethylethanamine > ethanamine > N-methylaniline > benzenamine
  2. benzenamine > ethanamine > N-methylaniline > N-ethylethanamine
  3. N-methylaniline > benzenamine > ethanamine > N-ethylethanamine
  4. N-ethylethanamine > ethanamine > benzenamine > N-methylaniline
NEET (UG) 2025
7

Predict the major product 'P' in the following sequence of reactions- [figure]

  1. [figure]
  2. [figure]
  3. [figure]
  4. [figure]
NEET (UG) 2025
8

Given below are two statements : In the light of the above statements, choose the most appropriate answer from the options given below:

  1. Statement I is correct but Statement II is incorrect
  2. Statement I is incorrect but Statement II is correct
  3. Both Statement I and Statement II are correct
  4. Both Statement I and Statement II are incorrect
NEET (UG) 2025
9

Given below are two statements: In the light of the above statements, choose the correct answer from the options given below:

  1. Both statement I and Statement II are true
  2. Both Statement I and Statement II are false
  3. Statement I is correct but Statement II is false
  4. Statement I is incorrect but Statement II is true
NEET (UG) 2024
10

Identify the major product C formed in the following reaction sequence : CH3-CH2-CH2-I NaCN A [Partial hydrolysis]OH- B [Br2]NaOH (major)C

  1. propylamine
  2. butylamine
  3. butanamide
  4. -bromobutanoic acid
NEET (UG) 2024
11

The major product X formed in the following reaction sequence is : [figure]

  1. [figure]
  2. [figure]
  3. [figure]
  4. [figure]
RE-NEET (UG) 2024

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