Explain the following reactions of chlorobenzene: (i) Reaction with chlorine in the presence of FeCl3 in dark, (ii) Fitting reaction.
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Solution
(i) Chlorobenzene reacts Cl2 in presence of FeCl3 to form ortho and para dichlorobenzene. (ii) Fitting Reaction: When chlorobenzene are heated with sodium metal in absence of etheral solution, the halogen atom is replaced by alkyl group and the two phenyl rings unite forming diphenyl.