CAPF AC 2012 PYQ with Answer — The salt which causes hardness of water is

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CAPF AC 2012 · Paper I: General Ability and IntelligenceQ45

Back to the full 2012 paper

2012 · Q45

The salt which causes hardness of water is

general-sciencechemistry

Acalcium bicarbonate
Bcalcium carbonate
Csulphate
Dnitrogen

Explanation

Temporary hardness of water is caused by dissolved calcium and magnesium bicarbonates.

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