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Question

Predict the products obtained when calcium bicarbonate undergoes boiling.

A
Calcium carbonate
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B
Carbon dioxide
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C
Calcium hydroxide
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D
Water
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Solution

The correct options are
A Calcium carbonate
B Carbon dioxide
D Water
When calcium bicarbonate is boiled, it decomposes to form an insoluble precipitate of calcium carbonate along with carbon dioxide and water. The reaction is given below:
Ca(HCO3)2boiling−−−CaCO3+CO2+H2O

The deposition of insoluble calcium carbonate on a surface is called scaling.

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