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Amines

JEE Main 2025 (Online) 28th January Evening ShiftMCQEasy📈 Topic in 46% papers+4−1
Ques. 1JEE Main 2025, 28 January (Evening Shift)

Identify correct statements : Choose the correct answer from the options given below :

  1. (B) and (C) only
  2. (D) and (E) only
  3. (A) and (B) only
  4. (B) and (D) only

Answer

(4) (B) and (D) only

Solution

(A) Primary amines react with NaNO2/HCl (nitrous acid) to form diazonium salts (stable for aromatic amines at 273–278 K, unstable for aliphatic ones) incorrect.

(B) R-NH2 + CHCl3 + 3KOH R-NC + 3KCl + 3H2O; both aliphatic and aromatic 1° amines form foul-smelling isocyanides (carbylamines) correct.

(C) The carbylamine test is given only by primary amines incorrect.

(D) Benzenesulphonyl chloride (C6H5SO2Cl) is Hinsberg's reagent correct.

(E) Tertiary amines have no H on nitrogen, so they do not react with benzenesulphonyl chloride incorrect.

Correct: (B) and (D).

Answer: (4)

Keep practising — Amines

Ques. 2JEE Main 2025, 24 January (Evening Shift)

For reaction [figure] The correct order of set of reagents for the above conversion is :

  1. Ac2O, Br2, H2O( ), NaOH
  2. H2SO4, Ac2O, Br2, H2O( ), NaOH
  3. Br2 | FeBr3, H2O( ), NaOH
  4. Ac2O, H2SO4, Br2, NaOH
Ques. 3JEE Main 2025, 23 January (Morning Shift)

Which among the following react with Hinsberg's reagent? Choose the correct answer from the options given below :

  1. A, C and E only
  2. A, B and E only
  3. C and D only
  4. B and D only
Ques. 4JEE Main 2025, 23 January (Morning Shift)

Consider the following sequence of reactions to produce major product (A) [figure] Molar mass of product (A) is g mol-1. (Given molar mass in g mol-1 of C : 12, H : 1, O : 16, Br : 80, N : 14, P : 31)

Ques. 5JEE Main 2025, 23 January (Evening Shift)

Consider the following sequence of reactions. [figure] Total number of sp3 hybridised carbon atoms in the major product C formed is .

Ques. 6JEE Main 2025, 22 January (Morning Shift)

The products formed in the following reaction sequence are : [figure]

  1. [figure]
  2. [figure]
  3. [figure]
  4. [figure]
Ques. 7JEE Main 2025, 22 January (Morning Shift)

Consider the following sequence of reactions : [figure] Molar mass of the product formed (A) is g mol-1.

Ques. 8JEE Main 2025, 22 January (Evening Shift)

Match the Compounds (List - I) with the appropriate Catalyst/ Reagents (List - II) for their reduction into corresponding amines. Choose the correct answer from the options given below :

  1. A-II, B-IV, C-III, D-I
  2. A-III, B-IV, C-II, D-I
  3. A-III, B-II, C-IV, D-I
  4. A-II, B-I, C-III, D-IV
Ques. 9JEE Main 2024, 8 April (Morning Shift)

If 279 g of aniline is reacted with one equivalent of benzenediazonium chloride, the maximum amount of aniline yellow formed will be g. (nearest integer) (consider complete conversion).

Ques. 10JEE Main 2024, 8 April (Morning Shift)

Number of amine compounds from the following giving solids which are soluble in NaOH upon reaction with Hinsberg's reagent is . [figure]

Ques. 11JEE Main 2024, 8 April (Evening Shift)

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

  1. Statement I is false but Statement II is true
  2. Both Statement I and Statement II are true
  3. Both Statement I and Statement II are false
  4. Statement I is true but Statement II is false

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