Select the member of each pair that shows rate of `S_(N)2` reaction with `KI` in acetone.

rate of S_(N^(2)) reaction is:

Rate of S_(N^2) reaction is :

Rate of S_(N^(1)) reaction is :

Consider the nucleophilic attacks given below. Select in each pair that shows the greater S_(N^2) reaction rate.

The rate of S_(N^(1)) reaction is fastest with :

The rate of S_N2 reaction is maximum when the solvent is

Increasing rate of S_(N)1 reaction in the following compounds is