The number of optically active isomers of tar | vedclass

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(A) Tartaric acid is $HOOC-CH(OH)-CH(OH)-COOH$.It contains two chiral carbon atoms.The total number of stereoisomers is given by $2^n$ where $n$ is th

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$2$

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(A) Tartaric acid is $HOOC-CH(OH)-CH(OH)-COOH$.It contains two chiral carbon atoms.The total number of stereoisomers is given by $2^n$ where $n$ is the number of chiral centers,but since the molecule is symmetric,we use the formula for meso compounds.For tartaric acid,there are two optically active enantiomers ($d$ and $l$ forms) and one optically inactive meso form.Thus,the number of optically active isomers is $2$.

The number of optically active isomers of tartaric acid is .....

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