Permanent hardness of water cannot be removed by simple physical methods like boiling, filtering and distillation.
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Similar Questions
Q1
Both temporary and permanent hardness in water can be removed by the addition of washing soda. Which of the following reactions represents the removal of permanent hardness in water?
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Q2
Assertion :Permanent hardness of water can be removed by using washing soda Reason: Washing soda reacts with soluble calcium and magnesium chlorides and sulphates in hard water to form insoluble carbonates
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Q3
Boiling hard water with washing soda removes permanent hardness.
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Q4
Washing soda helps in removing the permanent hardness of water.
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Q5
Assertion (A): Permanent hardness of water is removed by treatment with washing soda. Reason(R): Washing soda reacts with soluble magnesium and calcium sulphate to form water-soluble compounds.