Question

Racemisation occurs in ______.

विकल्प

• S_N1 reaction

• S_N2 reaction

• Neither S_N1 nor S_N2 reaction

• S_N2 reaction as well as S_N1 reaction

Answer 1

Racemisation occurs in S_N1 reaction.

Explanation:

A mixture containing two enantiomers in equal quantities will have zero optical rotation because the rotation caused by one isomer will be neutralised by the rotation caused by the other isomer. This type of mixture is known as a racemic mixture or racemic modification. Racemisation refers to the process of converting an enantiomer into a racemic mixture. Both retented and inverted products are generated during the S_N1 reaction. Racemization happens as a result of the production of both d- and l- products.