question_answer

The following reaction is described as

A)  \[{{S}_{E}}2\]                                   

B)  \[{{S}_{N}}2\]

C)  \[{{S}_{N}}1\]                                  

D)  \[{{S}_{N}}0\]

Correct Answer: B

Solution :

In this reaction inversion takes place. Hence, it is an example of\[{{S}_{N}}2\]reaction. In this mechanism, the attack of\[O{{H}^{-}}\]ion takes place from the back side while, the\[B{{r}^{-}}\]ion leaves from the front side.