The Total solution for NCERT class 6-12
Explain how does the −OH group attached to a carbon ofbenzene ring activate it towards electrophilic substitution?
The −OH group is an electron-donating group. Thus, itincreases the electron density in the benzene ring as shown in the givenresonance structure of phenol.
As a result, the benzene ring is activated towardselectrophilic substitution.