Question

Which of the following statements about the SN2 mechanism for nucleophilic substitution reactions is true?

a. Involves one step and occurs with retention of configuration.
b. Involves two steps and occurs with inversion of configuration.
c. Involves one step and occurs with racemization.
d. Involves one step and occurs with inversion of configuration.

Answer 1

d. Involves one step and occurs with inversion of configuration.

Step-by-step explanation:

SN2 reaction mechanism -

It is the type of substitution reaction , where , the reaction takes place in a single step , and in the single step the leaving group get removed and the incoming nucleophile get attached to the reaction center .

This type of reaction is known as SN2 reaction .

In this type of reaction , the reaction is carried out via inversion of configuration , i.e. , the configuration of the reactant and product is exactly opposite to each other .

Hence , from the given options , the correct option for the SN2 reaction mechanism is (d).