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Standard VIII
Chemistry
Temporary Hardness of Water and Removal
The temporary...
Question

The temporary hardness of water is due to the presence of:


A

Magnesium bicarbonate

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B

Calcium chloride

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C

Magnesium sulphate

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D

Calcium carbonate

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Solution

The correct option is A

Magnesium bicarbonate


The temporary hardness of water is due to the presence of calcium and magnesium hydrogen carbonates. It can be removed by boiling.
The presence of calcium chloride, calcium carbonate and magnesium sulphate causes permanent hardness.


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