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The order of reactivity of A, B, C and D towards hydrolysis by SN1 mechanism is
A. A < B < C < D
B. D < C < B < A
C. D < A < B < C
D. C < B < A < D
Ans: C
Sol: More is the electron releasing group present in the carbocation, more is the stability of carbocation and faster is the SN1 reaction.