Question

Amongst the compounds given, the one that would form a brilliant coloured dye on treatment with NaNO₂ in dil. HCl followed by addition to an alkaline solution of β -naphthol is 

Answer 1

Correct Option (C)

Explanation:

As we know, benzenediazonium salt forms brilliant coloured dye wit h β -naphthol, the compound under consideration must be p-toluidine (c) as it is a primary aromatic amine. Primary aromatic amine, on treatment with NaNO₂ in dil. HCl forms the corresponding diazonium chloride salt.