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Question

Carbon dioxide gas is liberated when HCl acid is added to:


A

Calcium Carbonate.

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B

Sodium Nitrate.

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C

Silver Chloride.

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D

Lead Nitrate.

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Solution

The correct option is A

Calcium Carbonate.


Carbonate salts release carbon dioxide when they react with HCl.

2HCl+Na2CO32NaCl+CO2+H2O


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