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Amines

JEE Main 2025 (Online) 23rd January Evening ShiftNumericalMedium📈 Topic in 24% papers+4
Ques. 1JEE 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 .

Answer

4

Solution

Diazotisation, azo coupling at para of phenoxide, then Williamson ether synthesis:

[figure]

C has sp3 carbons only in the two OC2H5 groups (12 ring carbons are sp2)

∴ 2 2=4

Answer: 4

Keep practising — Amines

Ques. 2JEE 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. 3JEE 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. 4JEE 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. 5JEE 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. 6JEE 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. 7JEE 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
Ques. 8JEE Main 2024, 6 April (Morning Shift)

9.3 g of pure aniline upon diazotisation followed by coupling with phenol gives an orange dye. The mass of orange dye produced (assume 100% yield/conversion) is g. (nearest integer)

Ques. 9JEE Main 2024, 6 April (Evening Shift)

An amine (X) is prepared by ammonolysis of benzyl chloride. On adding p-toluenesulphonyl chloride to it the solution remains clear. Molar mass of the amine (X) formed is g mol-1. (Given molar mass in g mol-1 C : 12, H : 1, O : 16, N : 14)

Ques. 10JEE Main 2024, 5 April (Morning Shift)

9.3 g of pure aniline is treated with bromine water at room temperature to give a white precipitate of the product 'P'. The mass of product 'P' obtained is 26.4 g. The percentage yield is %.

Ques. 11JEE Main 2024, 5 April (Evening Shift)

X g of ethanamine was subjected to reaction with NaNO2/HCl followed by hydrolysis to liberate N2 and HCl. The HCl generated was completely neutralised by 0.2 moles of NaOH. X is g.

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