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Question

Find out the total number of stereoisomers of pentane-1,2,3,4,5-pentol?

A
3
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B
6
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C
8
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D
4
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Solution

The correct option is A 3
The structure of the given compound is

It has two chiral centres with same terminal groups. So, it will have 3 stereoisomers in which two are optivally active.
Other one is optically inactive due to the presence of plane of symmetry in the molecule.

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