JEE Main · 2019 · 09 Apr 2019 · Shift 2 · Compounds Containing Nitrogen

Hinsberg's reagent is:

(A) $C_{6} H_{5} SO_{2} Cl$ ✓ Correct
(B) $C_{6} H_{5} COCl$
(C) $SOCl_{2}$
(D) $(COCl)_{2}$

Answer: (A)

Solution

Hinsberg's reagent is benzenesulfonyl chloride,

C X_{6} H X_{5} SO X_{2} Cl

. It is used to tell primary, secondary and tertiary amines apart: a primary amine gives a sulphonamide that dissolves in alkali, a secondary amine gives one that does not dissolve, and a tertiary amine does not react at all.

JEE Main · 2019 · 09 Apr 2019 · Shift 2 · Single correct option

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