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Dharmendra Sir • 3.53K Points
Extraordinary Chemistry

Q. Permanent hardness of water is due to the presence of ?

  • (A) Calcium sulphate
  • (B) Calcium bicarbonate
  • (C) Sodium bicarbonate
  • (D) Magnesium bicarbonate
  • Correct Answer - Option(A)
  • Views: 179
  • Filed under category Chemistry

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