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JEE Main levelSingle correct optionDifficulty 2 of 3nc207

Benzenediazonium chloride is added to N,N-dimethylaniline in weakly acidic medium (pH 4-5). The main product is

A2-(dimethylamino)azobenzene
BN,N-dimethyl-4-nitrosoaniline
C4-(dimethylamino)azobenzene (4-(N,N-dimethylamino)azobenzene)
Ddiphenylamine

Answer: C

The strongly activating dimethylamino group directs the diazonium ion to the free para position, giving the yellow azo dye

C X_{6} H X_{5} - N = N - C X_{6} H X_{4} - N (CH X_{3}) X_{2}

(para). Nitroso products need nitrous acid, not diazonium ion.

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