1.

Fresh milk has a pH of 6, as it turns into curd the pH will:1. Not be measured2. Not change3. Decrease4. Increase 5. None

Answer» Correct Answer - Option 3 : Decrease

The correct answer is Decrease.

  • pH is a scale used to determine the acidity or basicity of an aqueous solution.

  • The pH scale indicates the concentration of hydrogen ions in the solution.
  • Solution with a pH less than 7 is considered acidic.
  • Solution with a pH greater than 7 is considered basic or alkaline.
  • Solutions with a pH of 7 are neutral For e.g. pure water.
  • The pH value of milk is 6 because it is acidic in nature.

  • When the milk is converted into curd, lactic acid is formed which is more acidic in nature.
  • Therefore, the pH value of the milk decreases as it turns to curd.


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