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The cause of permanent hardness of water...

The cause of permanent hardness of water is due to

A

`Ca(HCO_(3))_(2)`

B

`Mg(HCO_(3))_(2)`

C

`CaCI_(2)`

D

`MgCO_(3)`

Text Solution

Verified by Experts

The correct Answer is:
c
Permanent hardness if water is due to the presence of the chlorides, nitrates and sulphates `Ca^(2+)` and `Mg^(2+)` ions.
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