Identify the product of the following reaction.

Assertion : $4-$Nitrochlorobenzene undergoes nucleophilic substitution more readily than chlorobenzene.
Reason : Chlorobenzene undergoes nucleophilic substitution by elimination-addition mechanism while $4-$nitrochlorobenzene undergoes nucleophilic substitution by addition-elimination mechanism.

$DDT$ can be prepared by reacting chlorobenzene (in the presence of conc. $H_2SO_4$) with

Aryl halides are less reactive towards nucleophilic substitution reactions than alkyl halides because of:

Which of the following compounds is least reactive towards nucleophilic substitution reaction?

Describe the reactions of aryl halides with metals.