18. Aniline reacts with dl. HCl and HONO at 00C to form a.benzene b.diazo compound c.azo compound d.nitro compound
Correct option is B) The compounds A, B and C are nitrobenzene, aniline and azo-compound. The reduction of nitrobenzene with SnCl 2 /HCl gives aniline. Diazotization of aniline with NaNO 2 /HCl at low temperature gives benzene diazonium chloride. When benzene diazonium chloride is heated in presence of water, phenol is obtained.