Which of the following statements is true about the composition of Calcium Carbonate (CaCo3) in soft water?

Which of the following statements is true about the composition of Calcium Carbonate (CaCo3) in soft water?

Q. Which of the following statements is true about the composition of Calcium Carbonate (CaCo3) in soft water?

  1. 0 to 30 milligrams of CaCO3 per litre
  2. 30 to 60 milligrams of CaCO3 per litre
  3. 60 to 90 milligrams of CaCO3 per litre
  4. 90 to 120 milligrams of CaCO3 per litre

Answer: 30 to 60 milligrams of CaCO3 per litre.

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