Why does benzene undergo electrophilic substitution reactions easily and nucleophilic substitution with difficulty?

Why does benzene undergo melting point increases

Haloarenes undergo electrophilic substitution reaction. Give three electrophilic substitution reactions of Chloro benzene.(Write down the chemical equation)

Account for the following: Haloalkanes undergo nucleophilic substitution reactions whereas haloarenes undergo electrophilic substitution reactions.

Which is incorrect about nucleophilic substitution reactions

Haloarenes undergo nucleophilic and eletrophilic subsitution reactions.Write one example for nucleophilic subsititution reaction of chlorobenzene.

Aryl halides are less reactive in nucleophilic substitution reactions.Give one example tor nucleophilic substitution reactions of aryl halides.

Which among the following is an electrophillic substitution reaction.