Optically active tartaric acid is named as D(+) tartaric acid because it is:
A
optically dextro rotatory and derived from D- glucose
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B
it changes its activity in aqueous solution
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C
optically active only when H - atoms are substituted by deuterium atoms
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D
optically dextro rotatory and derived from D(+) glyceraldehyde.
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Solution
The correct option is C optically dextro rotatory and derived from D(+) glyceraldehyde. All the compound of stereo chemistry are derived from D(+) glyceraldehyde. Tartaric acid is optically dextro rotatory.