Question -
Answer -
(i) The alkoxy group activates the benzene ring towards electrophilic substitution and
(ii) It directs the incoming substituents to ortho and para positions in benzene ring.
Answer
(i)
In aryl alkyl ethers, due to the +R effect of the alkoxygroup, the electron density in the benzene ring increases as shown in thefollowing resonance structure.
Thus, benzene is activated towards electrophilicsubstitution by the alkoxy group.
(ii) Itcan also be observed from the resonance structures that the electron densityincreases more at the ortho and para positions than at the meta position. As aresult, the incoming substituents are directed to the ortho and para positionsin the benzene ring.