Question

Electrophile for sulphonation is:

• A. $S{O}_3$
• B. $\stackrel{\oplus }{S}{O}_3$
• C. $\stackrel{\oplus }{S}{O}_{3}H$
• D. $\stackrel{\ominus }{S}{O}_{3}H$

Answer 1

Answer: (A)

Correct answer is (a) $S{O}_3$