1.

In chlorobenzene the Cl group

Answer»

activities the benzene ring more via resonane effect then deactivating it iva INDUCTIVE effect
deactivates the benzene ring more via inductive effect than deactivating it via resonance effect
activates the benzene ring via resonance effect and deactivates it via inductive effect. Both these effectts are evenly match
is a net deactivating group with meta directing influence.

Solution :CHLORINE activates the benzene ring due to +R effect. The lone pair of electrons on Cl participates in resonance with benzene
Because of high electronegativity of Cl, it ALSO exerts -I effect. So thest TWO effects balance each other.


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