Which of the following compound is formed during the removal of temporary hardness of water containing calcium bicarbonate through boiling?

Calcium Chloride

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Calcium Sulphate

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Calcium Nitrate

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Calcium Carbonate

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Solution

The correct option is D Calcium Carbonate
Temporary hardness is easily removed from water by boiling. When heated, the calcium hydrogen carbonate decomposes producing insoluble calcium carbonate. The insoluble carbonates are then filtered and removed from the water. This makes the hard water soft and fit for use.

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