Q. Which acid is present in sour milk?

  • (A) Citric acid
  • (B) Lactic acid
  • (C) Acetic acid
  • (D) Formic acid
✅ Correct Answer: (B) Lactic acid
Explanation: Sour milk contains lactic acid, produced by bacterial fermentation of lactose.

Published by Sikhar Chaudhary ⭐ 6.79K Points at 06-Oct-2025 06:46 am in Chemistry

Explanation by: Sikhar Chaudhary
Sour milk contains lactic acid, produced by bacterial fermentation of lactose.

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