The reagent(s) used for softening the tempora | vedclass

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(B) Temporary hardness of water is due to the presence of magnesium and calcium bicarbonates.$1$. $Ca(OH)_2$ (Clarke's method) is used to remove tempo

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$(B, C)$

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(B) Temporary hardness of water is due to the presence of magnesium and calcium bicarbonates.$1$. $Ca(OH)_2$ (Clarke's method) is used to remove temporary hardness by converting soluble bicarbonates into insoluble carbonates:$Ca(HCO_3)_2 + Ca(OH)_2 \longrightarrow 2 CaCO_3 \downarrow + 2 H_2O$$2$. $Na_2CO_3$ (Washing soda) is used to remove both temporary and permanent hardness by precipitating calcium and magnesium ions as carbonates:$Ca(HCO_3)_2 + Na_2CO_3 \longrightarrow CaCO_3 \downarrow + 2 NaHCO_3$Therefore,both $(B)$ and $(C)$ are correct reagents for softening temporary hardness.

The reagent$(s)$ used for softening the temporary hardness of water is(are):
$(A)$ $Ca_3(PO_4)_2$
$(B)$ $Ca(OH)_2$
$(C)$ $Na_2CO_3$
$(D)$ $NaOCl$

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The reagent$(s)$ used for softening the temporary hardness of water is(are):$(A)$ $Ca_3(PO_4)_2$$(B)$ $Ca(OH)_2$$(C)$ $Na_2CO_3$$(D)$ $NaOCl$