Question:
The reaction that occurs on passing carbon dioxide gas through lime water is
The reaction that occurs on passing carbon dioxide gas through lime water is
Options:
- CaCO3 + H2O + CO2 → Ca(HCO3)2
- Ca(OH)2 + CO2 → CaCO3 + H2O
- CaO + CO2 → CaCO3
- CaCl2 + H2O + CO2 → CaCO3 + 2HCl
- CaCO3 + H2O + CO2 → Ca(HCO3)2
- Ca(OH)2 + CO2 → CaCO3 + H2O
- CaO + CO2 → CaCO3
- CaCl2 + H2O + CO2 → CaCO3 + 2HCl
Correct Answer: Ca(OH)2 + CO2 → CaCO3 + H2O
Explanation:
When CO2 gas passed through the solution of lime water formation of calcium carbonate takes place i.e., milkiness appears. Ca(OH)2 + CO2 -> CaCO3 + H2O.
When CO2 gas passed through the solution of lime water formation of calcium carbonate takes place i.e., milkiness appears. Ca(OH)2 + CO2 -> CaCO3 + H2O.