Which of the following is the correct order of reactivity towards sulphonation?
(A)C6D6>C6H6>C6T6 (B)C6H6>C6D6>C6T6
(C) C6H6=C6D6=C6T6 (D)C6H6<C6D6<C6T6
Option B is correct. Sulphonation reaction is an electrophilic substitution reaction and for which the H or D or T should be easily removed and is substituted by SO3H. The bond strength is in the order C-T > C-D > C-H.
So C-H bond is easily cleaved and is substituted readily. Thus the order of sulphonation is C6H6>C6D6>C6T6
So C-H bond is easily cleaved and is substituted readily. Thus the order of sulphonation is C6H6>C6D6>C6T6