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Q: Temporary hardness is due to the presence of

  • 1
    Calcium carbonate
  • 2
    calcium bicarbonate
  • 3
    magnesium sulphate
  • 4
    calcium sulphate
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Answer : 2. "calcium bicarbonate"
Explanation :

Answer: B) calcium bicarbonate Explanation: Temporary hardness is due to the presence of soluble bicarbonates of calcium and magnesium in water. Permanent hardness is due to the presence of sulphates and chlorides of calcium and magnesium.

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