JEE Main 2022ChemistryAminesHardMCQ

JEE Main 2022 — Amines Question with Solution

JEE Main 2022 (25 Jul Shift 1)

Question

An organic compound 'A' on reaction with NH3 followed by heating gives compound B. Which on further strong heating gives compound C C8H5NO2. Compound C on sequential reaction with ethanolic KOH, alkyl chloride and hydrolysis with alkali gives a primary amine. The compound A is

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Show full solutionCorrect option: C
Correct answer
C

Step-by-step explanation

The carboxylic acids on heating with ammonia give amides. A diamide on strong heating give an imide.

Gabriel Phthalimide reaction: The hydrogen of the imide is acidic which can be extracted with base. Now, the nucleophile formed undergo bimolecular nucleophilic substitution reaction with alkyl chloride. Now, the alkyl imide undergo hydrolysis to give primary amine.

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About this question

This is a previous-year question from JEE Main 2022, covering the Amines chapter of Chemistry. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.