Question

Identify the product in the following reaction.

• A.
• B.
• C.
• D.

Answer 1

Answer: (D)

Resonating structures of phenol is given below

OH group is ortho-para directing. In excess of $D_{2}S{O}_4$, all the position is occupied by electrophile. Also $OH$ being a nucleophile is also attacked by $D_{2}S{O}_4$.