Question

Explain briefly
Q. The group which is most activating is
(1) $—N{O}_2$
(2) $—OC{H}_3$
(3) $—N{H}_2$
(4) $—OH$

Answer 1

Dear student,
The answer is option (c) i.e. -OCH_​3.
This is because O is having lone pair of electron along which -CH₃ group is attached to it which will increase electron density on oxygen resulting in makint it more easy for oxygen to loose electron and make it more activating.
Regards