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Question

HCl+NaHCO3
The given reaction releases which of the following gas?

A
O2
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B
CO2
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C
H2
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D
Cl2
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Solution

The correct option is A CO2
Acids react with metal hydrogen carbonates and form corresponding salts, carbon dioxide and water.
Example:
Hydrochloric acid on reaction with sodium bicarbonate forms sodium chloride, carbon dioxide and water.
HCl+NaHCO3NaCl+CO2+H2O.

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