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Amines · Question 6

NEET (UG) 2025MCQMedium📈 Topic in 75% papers+4−1
1

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

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

Answer

(3) [figure]

Solution

(i) In the presence of benzoyl peroxide, HBr adds by the anti-Markovnikov (peroxide effect, free radical) route: Br goes to the less substituted carbon of the double bond, giving 1-bromo-2-methylcyclopentane.

(ii) KCN replaces Br by CN (nucleophilic substitution): 2-methylcyclopentane-1-carbonitrile.

(iii) As per NCERT, nitriles are reduced to primary amines by sodium amalgam and ethanol (Mendius reduction): -C N -CH2NH2.

[figure]

P = (2-methylcyclopentyl)methanamine, option (3).

Answer: (3)

NEET (UG) 2025

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2

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
3

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
4

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
5

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

  1. [figure]
  2. [figure]
  3. [figure]
  4. [figure]
RE-NEET (UG) 2024
6

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

  1. [figure]
  2. [figure]
  3. CH3CH2OH
  4. CH3CH2Cl
RE-NEET (UG) 2024
7

The compound that does not undergo Friedel-Crafts alkylation reaction but gives a positive carbylamine test is :

  1. Aniline
  2. Pyridine
  3. N-methylaniline
  4. Triethylamine
RE-NEET (UG) 2024
8

Identify the product in the following reaction: [figure]

  1. [figure]
  2. [figure]
  3. [figure]
  4. [figure]
NEET (UG) 2023
9

Which of the following reactions will NOT give primary amine as the product?

  1. CH3CN [ (ii) H3O ](i) LiAlH4 Product
  2. CH3NC [ (ii) H3O ](i) LiAlH4 Product
  3. CH3CONH2 [ (ii) H3O ](i) LiAlH4 Product
  4. CH3CONH2 Br2/KOH Product
NEET (UG) 2023
10

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

  1. Both Statement I and Statement II are correct.
  2. Both Statement I and Statement II are incorrect.
  3. Statement I is correct but Statement II is incorrect.
  4. Statement I is incorrect but Statement II is correct.
NEET (UG) 2022
11

The product formed from the following reaction sequence is [figure]

  1. [figure]
  2. [figure]
  3. [figure]
  4. [figure]
NEET (UG) 2022

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