Chemistry
Grade-10
Easy
Question
Which gas is released on the addition of dilute acid to calcium carbonate?
- N2
- CO2
- NO2
- CaO
Hint:
Acids on reaction with metals, bases, and carbonates produce salts.
The gas liberated during the reaction of carbonate with an acid can be detected by passing the gas through lime water.
The correct answer is: CO2
CO2 is released on the addition of dilute acid to calcium carbonate.
- CaCO3 releases CO2 gas on reacting with the addition of dilute acid.
- For example: CaCO3(s)+ 2HCl (aq)→ CaCl2(aq)+ CO2(g)+ H2O(l)
- CaCO3 releases CO2 gas on reacting with the addition of dilute acid.
- For example: CaCO3(s)+ 2HCl (aq)→ CaCl2(aq)+ CO2(g)+ H2O(l)
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