Permanent hardness of water due to sulphates of metals can be destroyed by the use of
Permanent hardness of water due to sulphates of metals can be destroyed by the use of
AZeolites
Bsulphonides
Clime
Dnitrates
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Correct Answer: A [Zeolites]
Explanation:
Temporary hardness of water can be removed easily by boiling water or by adding washing soda (Sodium Carbonate-hydrated). Permanent hardness cannot be removed by merely boiling or adding washing soda.
A complex salt called sodium aluminium silicate (zeolite) is used toremove permanent hardness.
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