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Question: Answered & Verified by Expert
Which one of the following acids does not exhibit optical isomerism?
ChemistryGeneral Organic ChemistryJEE MainJEE Main 2014 (12 Apr Online)
Options:
  • A
    Lactic acid
  • B
    Tartaric acid
  • C
    Maleic acid
  • D
    $\alpha$-amino acids
Solution:
2755 Upvotes Verified Answer
The correct answer is:
Maleic acid
Optical isomers contain an asymmetric (chiral) carbon atom (a carbon atom attached to four different atoms or groups). Therefore all except maleic acid exhibit optical isomerism.

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