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Hardness of water may be tempoarary or ...

Hardness of water may be tempoarary or permanent .Permanent hardness is due to the presence of

A

Chlorides of Ca and Mg in water

B

sulphates of Ca and Mg in water

C

hydrogen carbonates of Ca and Mg in water

D

carbonates of alkalie metals in water

Text Solution

Verified by Experts

The correct Answer is:
A, B
Permanent hardness is due to the presence of soluble salts of magnesium and calcium in the from of chorides and sulphates in water. Permanent hardness is not removed is not removed by bolling .
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