1.

Predict the number of stereoisomers in `CH_(2)OH.(CHOH)_(4).CHO`.A. 16B. 8C. 4D. 2

Answer» Correct Answer - A
Terminal groups are different. The number of asymmetric `C` atoms is four
`(HOCH_(2)overset(**)CH(OH)overset(**)CH(OH)overset(**)CH(OH)overset(**)CH(OH)CH_(2)OH)`
Therefore, the number of stereiosomers (optical isomers) is
`2^(n)=2^(4)=16`
(where `n` is the number of asymmetrical `C` atoms)


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