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Amines & Diazonium Salts JEE Main PYQs, 2020 to 2025

Amines & Diazonium Salts has 24 questions in JEE Main papers from 2020 to 2025, about 4 per year across all shifts. The most asked topic is Reactions of Amines (14 questions), followed by Diazonium Salts and Coupling (9) and Preparation of Amines (1).

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24Total PYQs
6Years covered
3Topics
2025 Apr S1Latest paper

Amines & Diazonium Salts questions per year

YearQuestions
20252
20249
20235
20223
20214
20201

Topic-wise weightage

TopicQuestionsShare of chapterLast asked
Reactions of Amines1458%2025
Diazonium Salts and Coupling938%2025
Preparation of Amines14%2021

Sample questions from recent papers

JEE Main 2025 · 2 Apr · Shift 1 · Reactions of Amines

The correct order of basic nature in aqueous solution for the bases

NH3,H2 N−NH2,CH3CH2NH2,(CH3CH2)2NH{\mathrm{NH}}_{3},{\mathrm{H}}_{2}{\ \mathrm{N}}-{\mathrm{NH}}_{2},{\mathrm{CH}}_{3}{\mathrm{CH}}_{2}{\mathrm{NH}}_{2},{({\mathrm{CH}}_{3}{\mathrm{CH}}_{2})}_{2}{\mathrm{NH}} and (CH3CH2)3 N{({\mathrm{CH}}_{3}{\mathrm{CH}}_{2})}_{3}{\ \mathrm{N}} is :

  1. (A)NH3<H2 N−NH2<(CH3CH2)3 N<CH3CH2NH2<(CH3CH2)2NH{\mathrm{NH}}_{3}<{\mathrm{H}}_{2}{\ \mathrm{N}}-{\mathrm{NH}}_{2}<{({\mathrm{CH}}_{3}{\mathrm{CH}}_{2})}_{3}{\ \mathrm{N}}<{\mathrm{CH}}_{3}{\mathrm{CH}}_{2}{\mathrm{NH}}_{2}<{({\mathrm{CH}}_{3}{\mathrm{CH}}_{2})}_{2}{\mathrm{NH}}
  2. (B)H2 N−NH2<NH3<(CH3CH2)3 N<CH3CH2NH2<(CH3CH2)2NH{\mathrm{H}}_{2}{\ \mathrm{N}}-{\mathrm{NH}}_{2}<{\mathrm{NH}}_{3}<{({\mathrm{CH}}_{3}{\mathrm{CH}}_{2})}_{3}{\ \mathrm{N}}<{\mathrm{CH}}_{3}{\mathrm{CH}}_{2}{\mathrm{NH}}_{2}<{({\mathrm{CH}}_{3}{\mathrm{CH}}_{2})}_{2}{\mathrm{NH}}
  3. (C)NH2−NH2<NH3<CH3CH2NH2<(CH3CH2)3 N<(CH3CH2)2NH{\mathrm{NH}}_{2}-{\mathrm{NH}}_{2}<{\mathrm{NH}}_{3}<{\mathrm{CH}}_{3}{\mathrm{CH}}_{2}{\mathrm{NH}}_{2}<{({\mathrm{CH}}_{3}{\mathrm{CH}}_{2})}_{3}{\ \mathrm{N}}<{({\mathrm{CH}}_{3}{\mathrm{CH}}_{2})}_{2}{\mathrm{NH}}
  4. (D)NH3<H2 N−NH2<CH3CH2NH2<(CH3CH2)2NH<(CH3CH2)3 N{\mathrm{NH}}_{3}<{\mathrm{H}}_{2}{\ \mathrm{N}}-{\mathrm{NH}}_{2}<{\mathrm{CH}}_{3}{\mathrm{CH}}_{2}{\mathrm{NH}}_{2}<{({\mathrm{CH}}_{3}{\mathrm{CH}}_{2})}_{2}{\mathrm{NH}}<{({\mathrm{CH}}_{3}{\mathrm{CH}}_{2})}_{3}{\ \mathrm{N}}
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Answer: (C)

Step-by-step solution

JEE Main 2025 · 24 Jan · Shift 1 · Diazonium Salts and Coupling

Given below are two statements I and II.

Statement I : Dumas method is used for estimation of "Nitrogen" in an organic compound.

Statement II : Dumas method involves the formation of ammonium sulphate by heating the organic compound with conc H2SO4{\mathrm{H}}_{2}{\mathrm{SO}}_{4}.

In the light of the above statements, choose the correct answer from the options given below

  1. (A)Statement I is true but Statement II is false
  2. (B)Statement I is false but Statement II is true
  3. (C)Both Statement I and Statement II are true
  4. (D)Both Statement I and Statement II are false
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Answer: (A)

Step-by-step solution

JEE Main 2021 · 17 Mar · Shift 1 · Preparation of Amines

Which of the following reaction is an example of ammonolysis?
  1. (A)C6H5COCl + C6H5NH2 →\to C6H5CONHC6H5
  2. (B)C6H5CH2CN \buildrel[H]⟶\buildrel {[H]} \over \longrightarrow C6H5CH2CH2NH2
  3. (C)C6H5CH2CN \buildrelHCl⟶\buildrel {HCl} \over \longrightarrow C6H5N+\mathop N\limits^ +H3Cl−-
  4. (D)C6H5CH2Cl + NH3 →\to C6H5CH2NH2
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Answer: (D)

Step-by-step solution

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Frequently asked

How many questions come from Amines & Diazonium Salts in JEE Main?

24 questions from 2020 to 2025, about 4 per year. In 2025 it had 2.

Which Amines & Diazonium Salts topics are most important for JEE Main?

By past papers: Reactions of Amines (58%), Diazonium Salts and Coupling (38%) and Preparation of Amines (4%) of all Amines & Diazonium Salts questions.

Is the Amines & Diazonium Salts PYQ PDF free?

Yes. The PDF, the answer key and every step-by-step solution on PrepWiser are free, with no login needed to practise.

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