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Question

Chemistry Question on Organic Chemistry- Some Basic Principles and Techniques

Find the number of stereoisomers of 1,2-dihydroxy cyclopentane.

A

1

B

2

C

3

D

4

Answer

3

Explanation

Solution

Symmetrical molecule Number of chiral carbon atoms = 2 (even) Number of stereoisomers = 2n−1+2n2−12^{n-1}+2^{\frac{n}{2}-1} =22−1+222−1=21+20=2+1=3=2^{2-1}+2^{\frac{2}{2}-1}=2^{1}+2^{0}=2+1=3