Appeared in: 2026 (3 sets)
The correct formula of Hinsberg's reagent is :
(A) $\text{C}_6\text{H}_5\text{COCl}$
(B) $\text{C}_6\text{H}_5\text{SO}_2\text{Cl}$
(C) $\text{C}_6\text{H}_5\text{CONHCH}_3$
(D) $\text{C}_6\text{H}_5\text{CH}_2\text{NH}_2$