Question

C6H5CONH2 when reacts with Br2/KOH gives a compound B which when further reacts with NaNO2/HCl gives a compound C. Which further reachts with K2Cr2O7/HCl to give a compound D. Find B,C and D.

Answer 1

so here is it answer so
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Answer 2

C6H5CONH2 reacts with Br2/kOH form aniline
aniline reacts with NaNO2/HCL to give benzene diazonium chloride and then benzene diazonium chloride react with K2Cr2O7/HCL first form chloro benzene and then benzoic acid....


compound B- Aniline
compound C- Benzene diazonium chloride
compound D- chloro benzene and benzoic acid