The electrophile involved in the sulphonation of benzene is :

Options

A. `SO_(3)^(2-)`
B. `H_(3)O^(+)`
C. `SO_(3)`
D. `SO_(3)^(+)`

Answer

C

Explanation

The sulphonation of benzene involves the formation of the electrophile `SO_(3)`, in the first step which subsequently attacks thke benzene ring and causes sulphonation.
`2H_(2)SO_(4)hArrH_(3)O^(+)+HSO_(4)^(-)+underset(("electrophile"))(SO_(3))`