Which of the following species paticipate in sulphonation of benzene ring ?
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SO3
MARK BRAINLIEST
SO3
MARK BRAINLIEST
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Most electrophilic substitution reactions are irreversible but sulphonation is an exception.Treatment of benzene with "oleum"(a solution of SO3 in conc.sulphutic acid) will give the sulphonic acid,the electrophile is sulphur trioxide(SO3)..
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