Arrange the following set of compounds in the order of their decreasing relative reactivity with an electrophile. Give reason.
The methoxy groupmakes anisole more reactive than benzene because it is an electron releasing group and increases the electron density of the benzene ring due to the +R effect.
Cl group is less reactive than methoxybenzene as it gives +R and -I effect. And, Chlorobenzene is more reactive than group since the gives -I and -R effect.