In a set of reactions, propionic acid yielded a compound (D). The structure of ‘D’ would beCH3CH2COOH→SOCl2(B)→NH3(C)→Br2KOH(D)

Step1: Formation of acid chlorideStep 3:- Hofmann’s bromide reactionBy this method, the acid amide -CONH2 group is converted into primary amine   -NH2 group