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Question

Chemistry Question on Aromatic Hydrocarbon

The effective electrophile in aromatic. sulphonation is

A

H2SO4−{{H}_{2}}SO_{4}^{-}

B

SO2S{{O}_{2}}

C

SO2+SO_{2}^{+}

D

SO3S{{O}_{3}}

Answer

SO3S{{O}_{3}}

Explanation

Solution

2H2SO4<=>SO3(electrophile of aromatic sulphonation)+HSO4−+H3O+2H_2SO_4 {<=>} \underset{\text{(electrophile of aromatic sulphonation)}}{SO_3} + HSO_4^- + H_3O^+