Explain the fact that in aryl alkyl ethers the alkoxy group activates the benzene ring towards electrophilic substitution.

Explanation

Anisole is an aryl ether. In anisole the group `-OCH_(3)` influences +R effect. This increases the electron density in the benzene ring and it leads to the activation of benzene ring towards electrophillic substitution reactions.
In Anisole electron density is more at O-and P-Positions but not at m-position. So O-and P-products are mainly formed during electrophillic substitution reactions.