Difference Between SN1 and SN2

Considered both as nucleophilic substitution reactions, these are reactions involving the donor from an electron pair and an acceptor. The solvent present plays a very important role in exactly postulating the path of the reaction. Understanding the physical properties of Haloalkanes, is essential in understanding SN1 and SN2.

Difference between SN1 and SN2

The major difference involved between these two types of reactions is to study the different properties of the departure group that helps us in finding out the pathway of the group.

Difference between SN1 and SN2



The rate of reaction is unimolecular.

The rate of reaction is bimolecular

It is a two step mechanism

It is only a one step mechanism

Carbocation is formed as an intermediate part of the reaction.

No carbocation is formed during the reaction.

There is no partial bond formed with the carbon during this reaction.

Carbon forms a partial bond with the nucleophile and the leaving group.

There are many steps in this reaction which start with the removal of the group while attacking the nucleophile.

The process takes place in only one cycle, with a single intermediate stage.