Question

The electrophile involved in the sulphonation of Benzene is

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

Answer 1

Answer: (B)

The electrophile involved in the sulphonation of benzene is $S{O}_3$.

$2H_{2}S{O}_4⟶S{O}_3+H_3{O}^{+}+HS{O}_4^{-}$