Select the regent that will the grester amount of subsition on reaction with `CH_(3)-CH_(2)-Br:`
(a) `CH_(3)CH_(2)OK` in dimethyl sulfoxide (DMSO)
(B) `(CH_(3))_(3)COK` in dimethyl sulffoxide (DMSO)
(c ) Both (a) and (B) will give comparable amounts of sufsition
(D) Neiter (a) nor (B) wil give any amount of substition

Answer

a

Explanation

`"Nucleophilicty "prop(1)/("size of Nu "^(o-))`