JEE Main 2026 — Amines Question with Solution
JEE Main 2026 (23 January Shift 2)
Question
A student has been given a compound " " of molecular formula- . ' ' is sparingly soluble in water. However, on addition of dilute mineral acid, ' ' becomes soluble in water. ' ' when treated with and alc , ' ' is produced. ' y ' has a specific unpleasant smell. On treatment with benzenesulphonyl chloride, ' ' gives a compound ' ' which is soluble in alkali. The number of different " " atoms present in ' ' is:-
Choose an option
Show full solutionCorrect option: D
Correct answer
D7
Step-by-step explanation
Compound X has molecular formula , is sparingly soluble in water but soluble in dilute mineral acid → primary aromatic amine (aniline).
X with gives Y with unpleasant smell → carbylamine reaction, confirms primary amine.
X with benzenesulphonyl chloride gives Z which is soluble in alkali → Hinsberg test confirms primary amine. Z is N-phenylbenzenesulfonamide.
Structure of Z:
X with gives Y with unpleasant smell → carbylamine reaction, confirms primary amine.
X with benzenesulphonyl chloride gives Z which is soluble in alkali → Hinsberg test confirms primary amine. Z is N-phenylbenzenesulfonamide.
Structure of Z:
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This is a previous-year question from JEE Main 2026, 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.