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Hydrocarbons

Question
CBSEENCH11007878

Discuss:
(i) nitration and  (ii) sulphonation of benzene.

Solution
(i) Nitration: Nitration of benzene is carried out by heating benzene with a mixture of concentrated nitric acid and concentrated sulphuric acid at 340 - 350K. Nitrobenzene is produced.

(ii) Sulphonation: When benzene is heated with concentrated H2SO4 or fuming sulphuric acid at 373K, benzene sulphonic acid is produced.