1.

Which of the folliwng is the order of the rate of reaction of C_(6)H_(6),C_(6)D_(6), and C_(6)T_(6) towards sulphonation?

Answer»

Same rates of reactions of `C_(6)D_(6), C_(6)D_(6)` and `C_(6)T_(6)`.
`C_(6)T_(6) GT C_(6) D_(6) gt C_(6) H_(6)`
`C_(6) H_(6) gt C_(6) D_(6) gt C_(6) T_(6)`
`C_(6) H_(6) gt C_(6) D_(6) = C_(6) T_(6)`

Solution :SULPHONATION is a reversable PROCESS and shows `1^(@)` kinetic ISOTOPE effect, wheras other `SE` reactiosn (i.e. nitration halogation, etc.) do not show `1^(@)` kinetic isotope effect.


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