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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

`CaCl_2`

D

`MgCO_3`

Text Solution

Verified by Experts

The correct Answer is:
C
Permanent Hardness in the presence of chlorides and sulphates. Temporary hardness in the presence of bicarbonates.
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