Which of the following acids does not exhibit optical isomerism?
A
Tartaric acid
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B
Lactic acid
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C
Maleic acid
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D
α− Amino acids
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Solution
The correct option is C Maleic acid
Maleic acid does not exhibit optical isomerism as it lacks chiral C atom. Tartaric acid, lactic acid and α− amino acids exhibit optical isomerism as they contain chiral C atoms.