Q. Water, on passing over rocks, becomes hard because it disolves

  • (A) sodium chloride
  • (B) sodium carbonate
  • (C) calcium carbonate
  • (D) sodium phosphate
✅ Correct Answer: (C) calcium carbonate

Published by Yami Thakur ⭐ 10.63K Points at 28-Sep-2022 05:23 am in Chemistry

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