Question

A racemic mixture is a mixture of:

• A. meso and its isomers
• B. d and l isomers of the same compound in equimolar proportions
• C. d and l isomers of the same compound in different proportions
• D. mixture of d and meso isomers

Answer 1

The correct option is B d and l isomers of the same compound in equimolar proportions

Racemic or $(\pm )$ or dl is optically inactive due to external compensation and its specific rotation is also zero.
It is a mixture of d & l isomers of the same compound in equimolar proportions because of which mixture become optically inactive.