Q. How many optically active stereomers are possible for butan-2, 3-diol?
A) 1
B) 2
C) 3
D) 4
Explanation
(b)
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Where $C^{*}$=asymmetric C atom
It is a symmetrical molecule, so the number of optically active stereomers=$2^{n - 1}$
($n$=number of asymmetric C atom)
$= 2^{2 - 1}$
$= 2^{- 1} = 2$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.