Why benzene undergo electrophilic substitution reaction easily and nucleophilic substution reaction with difficulty easily and?

Answer 1

the electron in benzene are delocalised making d ring to be elctron rich,thereby undergoing electrophilic substitution.benzene cannot undergo nucleophillic substitution,it can only undergo if it is substituted with an electron withdrawing group

Answer 2

Benzene undergoes electrophilic substitution reactions easily due to its delocalized pi electrons that can stabilize the positive charge of the electrophile. On the other hand, benzene does not readily undergo nucleophilic substitution reactions because the aromatic system is already stable due to resonance, making it difficult for nucleophiles to attack and substitute a hydrogen atom.