Question

Identify the compounds [A], [B] and [C] in the following reaction:

\[\ce{C6H5CONH2 ->[Br2/aq{.} KOH][][A]->[NaNO2 {+} HCl (ice cold)][][B]->[Cu2Cl2 {+} HCl][][C]}\]

Answer 1

\[\ce{C6H5CONH2 ->[Br2/aq{.} KOH][]\underset{(A)}{C_6H_5NH_2} ->[NaNO2 {+} HCl (ice cold)][] \underset{(B)}{C_6H_5N^+2Cl^-} ->[Cu2Cl2 {+} HCl][] \underset{(C)}{C_6H_5Cl}}\]