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The temporary hardness of water due to c...

The temporary hardness of water due to calcium bicarbonate can
be removed by adding

A

`CaCO_(3)`

B

`Ca(OH)_(2)`

C

`CaCl_(2)`

D

`HCl`

Text Solution

Verified by Experts

The correct Answer is:
B
Temporary hardness of water is due to the presence of bicarbonates of calcium and magnesium
`Ca(HCO_(3))_(2)+Ca(OH)_(2)to2CaCO_(3)+2H_(2)O`
The temporary hardness of water can be removed by the addition of calculated quantity of milk of limne which converts soluble bicarbonates into insoluble carnonates which can be removed.
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