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easyMCQNEET 20192026Chemistry
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The method used to remove temporary hardness of water is:

  1. A
    Calgon's method
  2. B
    Clark's method
  3. C
    Ion-exchange method
  4. D
    Synthetic resins method

Solution & Step-by-step Explanation

- Temporary hardness is caused by bicarbonates of Ca and Mg. It can be removed by boiling or by Clark's method (addition of calculated amount of lime).
Permanent hardness (chlorides and sulphates) is removed by Calgon's process, Ion-exchange, or synthetic resins.

Practice this question

Try it yourself before checking the explanation above.

The method used to remove temporary hardness of water is:
A
Calgon's method
B
Clark's method
C
Ion-exchange method
D
Synthetic resins method

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Environmental ChemistryWater Hardness

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