The temporary hardness of water due to c...

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

`CaCO_(3)`

`Ca(OH)_(2)`

`CaCl_(2)`

`HCl`

Text Solution

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The correct Answer is:

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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The temporary hardness of water is due to :

`CaCl_(2)`

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

NaCl

`Na_(2)SO_(4)`

Temporary hardness of water is due to

presence of `Ca(HCO_3)_2`

presence of `CaCl_2`

Both (1) and (2)

None of these

Temporary hardness of water can be removed

by passing `CO_(2)`

by passing `SO_(2)`

by adding `Ca(OH)_(2)`

by adding `NaCl`