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Question: Answered & Verified by Expert
Why do we add alum to purify water?
ChemistrySurface ChemistryNEET
Options:
  • A Alum kills harmful bacteria in water.
  • B Alum neutralizes acidity in water.
  • C Alum helps in the coagulation of impurities, making them settle down.
  • D Alum enhances the taste of water.
Solution:
1247 Upvotes Verified Answer
The correct answer is: Alum helps in the coagulation of impurities, making them settle down.
Correct Option is : (C)
Alum helps in the coagulation of impurities, making them settle down.

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