Question

The electrophile involved in the sulphonation of benzene is

• A. $S{O}_3^{+}$
• B. $S{O}_3^{2-}$
• C. $H_3^{+}O$
• D. $S{O}_3$

Answer 1

Answer: (D)

The electrophile involved in the sulphonation of benzene is $S{O}_3$ $2H_{2}S{O}_4\to S{O}_3+H_3{O}^{+}+HS{O}_4^{-}$