Q. The alum used for purifying water is

  • (A) Potash alum
  • (B) Ammonium alum
  • (C) Ferric alum
  • (D) Chrome alum
✅ Correct Answer: (A) Potash alum

Published by Ram Sharma ⭐ 193.88K Points at 15-Mar-2022 04:50 pm in Science

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