The number of racemic mixture obtained by optical isomers of 2, 3-dihydroxy butanal is/are

Options

A. Three
B. Two
C. One
D. Zero

Answer

B

Explanation

`CH_(3) - overset(**) underset(OH)underset(|)( C)H- overset(**)underset(OH)underset(|)( C) H - CHO`
Number of stereoisomers = `2^(n) = 4`.
Here 2 racemic mixtures are obtained.