Class 11 NEET Chemistry Organic Chemistry Some Basic Principles And Techniques Part 1

Benzene having any activating group i.e., −OH,−R undergoes electrophilic substitution easily as compared to benzene itself. Thus, toluene and phenol undergo electrophilic substitution easily. Chlorine due to −I -effect deactivates the ring. So, it is difficult to carry out the electrophilic substitution in chlorobenzene. Hence, the order is