πŸ“Š General Science
Q. Which among the following methods can be used to remove the permanent hardness in water due to calcium or magnesium sulphates?
  • (A) Sulphonate method
  • (B) Nitrate method
  • (C) Zeolite method
  • (D) None of the above
πŸ’¬ Discuss
βœ… Correct Answer: (C) Zeolite method

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