question_answer

Aniline when diazotised in cold and then treated with dimethyl aniline gives a coloured product. Its structure would be:          [AIPMT (S) 2004]

A)  

B)  

C)  

D)  

Correct Answer: C

Solution :

[c] Aniline on diazotisation in cold (at 0° to 5°C) give benzene diazonium chloride.

This benzene diazonium chloride on coupling reaction with dimethyl aniline gives a coloured product i.e., p-(N, N-dimethyl) aminoazobenzene (azodye).