(A) Benzene sulphonyl chloride is also known as Hinsberg reagent. (B) Hoffmann bromamide reaction involves conversion of amide to amine having one C atom less. This reaction involves isocyanate as intermediate. (C) Carbylamine reaction is a test given by all primary amines. (D) Hoffmann orientation refers to the addition of molecules to unsymmetrical alkenes according to anti Saytzeff's rule. Correct match is A-III, B-IV, C-I, D-II