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Question

Is lactic acid an optically inactive compound?


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Solution

  1. Optically inactive: The compound that does not rotate the plane of Plane polarized light is called an optically inactive compound.
  2. Optically active: The compound enables to rotate the plane-polarized light is called an optically active compound.
  3. Lactic acid: In lactic acid four different groups of asymmetrical carbon atoms are present.
  4. Asymmetrical carbon atoms are called chiral carbons.
  5. Lactic acid possesses d-lactic acid and l-lactic acid these are mirror images of each other.

Hence, Lactic acid is an optically active compound, not an optically inactive compound.


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