The diazotization of two feebly basic aromatic amines is achieved by using

Options

(a) nitrous acid
(b) nitrosyl-hydrochloric acid
(c) sulphuric acid
(d) nitrosoyl-sulphuric acid

Correct Answer:

nitrous acid

Explanation:

Diazotisation reaction of aromatic amine takes place in presence of nitrous acid obtained from NaNO₂ and HCl.

NaNO₂ + HCl → HNO₂ + NaCl.