Question

Consider the reactions.

(i) (CH₃)₂CH - CH₂Br + C₂H₅OH → (CH₃)₂CH - CH₂OC₂H₅ + HBr

(ii) (CH₃)₂CH - CH₂Br + C₂H₅O^- → (CH₃)₂CH - CH₂OC₂H₅ + Br^- 

The mechanisms of reactions (i) and (ii) are respectively

(a) S_N1 and S_N2

(b) S_N1 and S_N1

(c) S_N2 and S_N2

(d) S_N2 and S_N1

Answer 1

Correct option (c) S_N2 and S_N2

Explanation :

If reaction is S_N1, there will be the formation of carbocation and the rearrangement takes place. In these reactions there is no rearrangement hence both are S_N2 mechanism.