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Amines

NEET (UG) 2022 (Phase 2)MCQMedium📈 Topic in 62% papers+4−1
Ques. 1NEET (UG) 2022 (Phase 2)

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

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

Answer

(2) [figure]

Solution

Step 1: Acetylation (acylation) of aniline with acetic anhydride in the presence of pyridine gives acetanilide.

Step 2: LiAlH4 followed by water reduces the amide >C=O group to -CH2- (as per NCERT, amides are reduced to amines by LiAlH4).

[figure]

The product is N-ethylaniline (N-ethylbenzenamine).

Answer: (2)

Keep practising — Amines

Ques. 2NEET (UG) 2022 (Phase 2)

Match List-I with List-II : Choose the correct answer from the options given below :

  1. (a)-(iii), (b)-(iv), (c)-(ii), (d)-(i)
  2. (a)-(iii), (b)-(i), (c)-(ii), (d)-(iv)
  3. (a)-(ii), (b)-(iii), (c)-(i), (d)-(iv)
  4. (a)-(iv), (b)-(iii), (c)-(i), (d)-(ii)
Ques. 3NEET (UG) 2021

Identify the compound that will react with Hinsberg's reagent to give a solid which dissolves in alkali.

  1. [figure]
  2. [figure]
  3. [figure]
  4. [figure]
Ques. 4NEET (UG) 2021

The reagent 'R' in the given sequence of chemical reaction is : [figure]

  1. CuCN/KCN
  2. H2O
  3. CH3CH2OH
  4. HI
Ques. 5NEET (UG) 2020

Which of the following amine will give the carbylamine test?

  1. [figure]
  2. [figure]
  3. [figure]
  4. [figure]
Ques. 6NEET (UG) 2019

The correct order of the basic strength of methyl substituted amines in aqueous solution is :

  1. (CH3)3N > (CH3)2NH > CH3NH2
  2. CH3NH2 > (CH3)2NH > (CH3)3N
  3. (CH3)2NH > CH3NH2 > (CH3)3N
  4. (CH3)3N > CH3NH2 > (CH3)2NH
Ques. 7NEET 2018

Nitration of aniline in strong acidic medium also gives m-nitroaniline because

  1. in spite of substituents nitro group always goes to only m-position
  2. in electrophilic substitution reactions amino group is meta directive
  3. in absence of substituents nitro group always goes to m-position
  4. in acidic (strong) medium aniline is present as anilinium ion
Ques. 8NEET 2017

The correct increasing order of basic strength for the following compounds is [figure]

  1. III < I < II
  2. III < II < I
  3. II < I < III
  4. II < III < I
Ques. 9NEET 2017

Which of the following reactions is appropriate for converting acetamide to methanamine?

  1. Hoffmann hypobromamide reaction
  2. Stephen's reaction
  3. Gabriel phthalimide synthesis
  4. Carbylamine reaction
Ques. 10NEET 2016 (Phase 1)

The correct statement regarding the basicity of arylamines is

  1. arylamines are generally more basic than alkylamines because of aryl group
  2. arylamines are generally more basic than alkylamines, because the nitrogen atom in arylamines is sp-hybridised
  3. arylamines are generally less basic than alkylamines because the nitrogen lone-pair electrons are delocalised by interaction with the aromatic ring -electron system
  4. arylamines are generally more basic than alkylamines because the nitrogen lone-pair electrons are not delocalised by interaction with the aromatic ring -electron system.
Ques. 11NEET 2016 (Phase 2)

Which one of the following nitro-compounds does not react with nitrous acid?

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

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