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The reaction involved during the removal...

The reaction involved during the removal of temporary hardness of water is:

A

`2CaCl_(2) + (NaPO_(3))_(6) to Na_(2)(Ca_(2)(PO_(3))_(6)) + 4NaCl`

B

`CaCl_(2) + Na_(2)CO_(3) to CaCO_(3) darr+ 2NaCl`

C

`MgSO_(4)+Na_(2) Al_(2) Si_(2) O_(8) xH_(2)O to MgAl_(2) SiO_(7)xH_(2)O + Na_(2)SO_(4)`

D

`Ca(HCO_(3))_(2) to CaCO_(3) + H_(2) O + CO_(2) darr`

Text Solution

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The correct Answer is:
D
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