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प्रश्न
The one that is NOT suitable for the removal of permanent hardness of water is ______.
पर्याय
Clark's method
Ion-exchange method
Calgon's method
Treatment with sodium carbonate
MCQ
रिकाम्या जागा भरा
उत्तर
The one that is NOT suitable for the removal of permanent hardness of water is Clark's method.
Explanation:
Clark's method is used to remove temporary hardness from water by using lime water (or) Ca(OH)2.
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Common Ion Effect
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