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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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Knowledge Check

  • The temporary hardness of water is due to :

    A
    `CaCl_(2)`
    B
    `Ca(HCO_(3))_(2)`
    C
    NaCl
    D
    `Na_(2)SO_(4)`

  • Temporary hardness of water is due to

    A
    presence of `Ca(HCO_3)_2`
    B
    presence of `CaCl_2`
    C
    Both (1) and (2)
    D
    None of these

  • Temporary hardness of water can be removed

    A
    by passing `CO_(2)`
    B
    by passing `SO_(2)`
    C
    by adding `Ca(OH)_(2)`
    D
    by adding `NaCl`