KCET · Chemistry · General Organic Chemistry
How many optically active stereomers are possible for butan-2,3-diol?
- A 1
- B 2
- C 3
- D 4
Answer & Solution
Correct Answer
(B) 2
Step-by-step Solution
Detailed explanation

where \(C^{*}=\) asymmetric \(C\) atom
It is a symmetrical molecule, so the number of optically active stereomers \(=2^{\mathrm{n}-1}\)
( \(\mathrm{n}=\) number of asymmetric \(C\) atom)
\(=2^{2-1}\)
\(=2^{1}=2\)
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