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Question

When CO2 is passed through lime water, it turns milky.The milkiness is due to the formation of:

A
CaCO3
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B
Ca(OH)2
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C
H2O
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D
CO2
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Solution

The correct option is C CaCO3
Lime water is calcium hydroxide which on passing carbon dioxide turns lime water milky due to formation of calcium carbonate.

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