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  3. Chemistry
  4. The reason for the loss of optical activity of lactic acid when OH group is changed by H is that :

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Q. The reason for the loss of optical activity of lactic acid when $ OH $ group is changed by $ H $ is that :

UPSEEUPSEE 2005

Solution:

When OH group of lactic acid is replaced by $H$ then chiral carbon is lost.

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$\therefore $ its optical activity is lost.