Benzene diazonium chloride on reaction with phenol in weakly basic medium gives?

(a)  diphenyl ether

(b)  p-hydroxy azobenzene

(c)  chlorobenzene

(d)  benzene

 

Benzene diazonium chloride on reaction with phenol in weakly basic medium gives p-Hydroxyazobenzene which is an orange dye. This is an example of the coupling reaction.

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