Q. Amongst the compounds given, the one that would form a brilliant coloured dye on treatment with in followed by addition to an alkaline solution of -naphthol is
Solution:
As we know, benzenediazonium salt forms brilliant coloured dye with P-naphthol, the compound under consideration must be p-toluidine (c) as it is a primary aromatic amine. Primary aromatic amine, on treatment with in dil. HC1 forms the corresponding diazonium chloride salt.
