question_answer

Number of optical isomers of lactic acid are

A) 1

B) 2

C) 3

D) 4

Correct Answer: B

Solution :

Only one chiral centre. Hence two optical isomers are possible. No. of optical isomer = \[{{2}^{n}}\] (where n = no. of chiral carbon) = \[{{2}^{1}}\] = 2.