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Both temporary and permanent hardness is removed on boiling with

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Both temporary and permanent hardness is removed on boiling with
A. `Ca(OH)_(2)`
B. `N_(2)CO_(3)`
C. `CaCO_(3)`
D. `CaO`
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Correct Answer - A
`Na_(2)CO_(3)+MgSO_(4)toNa_(2)SO_(4)+MgCO_(3)darr`
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