Question

Aniline when diazotised in cold and then treated with dimethyl aniline gives a coloured product. Its structure would be:

• A.
• B.
• C.
• D.

Answer 1

Answer: (C)

Answer 2

Aniline on diazotisation in cold (at $0^{\circ}$ to $5^{\circ} C$ ) give benzene diazonium chloride. This benzene diazonium chloride on coupling reaction with dimethyl aniline gives a coloured product ie, $p-( N , N$-dimethyl) amino azobenzene (azodye).