Question

${\mathrm{S}}_{\mathrm{N}}2$ Reactions are:

• A. Stereospecific
• B. Stereoselective
• C. Both (A) and (B)
• D. None Of These

Answer 1

The correct option is A

Stereospecific

The correct option is (A):

Explanation for the correct answer:

${\mathrm{S}}_{\mathrm{N}}2$ Reactions:

1. It is actually a chemical reaction which is a nucleophilic substitution reaction in which when the bond is broken at that moment only a new bond is formed.
2. It is basically a reaction in which only one transition state is formed.
3. And here in this reaction, there is the dependence on both the reactants that are given in the reaction so is a bimolecular reaction.
4. As the ${\mathrm{S}}_{\mathrm{N}}2$ reaction requires the attack of the nucleophile and from the back side of the Carbon atom.
5. The stereospecificity is basically the property that will lead to the different stereoisomeric reaction products from the different stereoisomeric reactants.
6. Thus the product will assume a stereochemical position and also opposite to the leaving group that was originally occupied.
7. Example for this reaction:

Therefore, the correct option is (A): Stereospecific.