Question

Total number of optically active isomers) of 2 3-dibromopentane is/are

Answer 1

Explanation:

The maximum number of stereoisomers is 2n , where n is the number of chiral centres. Since n=2 , the maximum number of stereoisomers is 22=4 . Structures 1 and 2 are two different nonsuperimposable mirror images of each other. But Structures 3 and 4 are meso compounds.