Question

Which is most reactive toward electrophilic aromatic substitution?

Answer 1

Complete Question

Which is most reactive toward electrophilic aromatic substitution?

A Phenol

B Anisole

C Nitro-benzene

D Benzene

Answer:

The correct option is A

Step-by-step explanation:

Generally the rate at which electrophilic aromatic substitution reaction occur is dependent on the nucleophilicity(nucleophile strength ) of Benzene ring.Now a functional group which increase the electron density in the benzene ring when attached to it increases its nucleophilicity and this in-turn will increase the rate at which electrophilic aromatic substitution reaction occur

Now Phenol is a compound that is made up of OH functional group and then the benzene ring

Anisole is a compound that is made up of
`OCH_3` functional group and then the benzene ring

Nitro-benzene is a compound that is made up of
`NO_2` functional group and then the benzene ring

Now since OH is the highest In series of activating group compared to the activation groups we are considering (i.e
`OCH_3` and
`NO_2` )

Then Phenol is the answer