Which of the following is Hinsberg’s reagent?
Answer & explanation
Correct answer: option 3
The correct answer is Option (3) → Benzenesulphonyl chloride
NCERT (2026-27 edition):
9.6 Chemical Reactions – “6. Reaction with arylsulphonyl chloride
Benzenesulphonyl chloride (C6H5SO2Cl), which is also known as Hinsberg’s reagent, reacts with primary and secondary amines to form sulphonamides.”