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which of the following cause temporary hand ness to water ?

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sulphates of Ca and Mg

Hydrogen carbonates of Ca and Mg

Chloride of Ca and Mg

Hydroxides of Ca and Mg

answer is B.

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Detailed Solution

The presence of calcium and magnesium bicarbonates Ca(HCO₃)₂ and Mg(HCO₃)₂causes temporary hardness in water.

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