Question

Which one of the following is most reactive towards electrophilic reagent?

• A.
• B.
• C.
• D.

Answer 1

Answer: (A)

Due to $+M$-effect of $-OH$ group and hyperconjugation of $-C{H}_3$ group, the benzene of $o$-cresol is highly reactive ring towards electrophilic substitution.