Question

Rate of Sn1 reaction increases in polar solvent because --
(a) Dissociation of C-X bond decreases.
(b) Stability of carbocation increases by solvation.
(c) Backside attack becomes fast.
(d) None of these​

Answer 1

Answer:

b

Explanation:

SN1 reaction occurs in two steps,

during the first step the carbocation is formed from alkyl halide which is stabilised by the solvation effect of H2O molecules

Answer 2

Answer:

(b) Stability of carbocation increases by solvation