Chemistry
Grade-10
Easy
Question
Complete the reaction:
Ca(OH)2 + CO2 
A+B
CaCO3 + H2
CaCO3 + H2O
-
CaCO3 + O2
CaO + O2
CaCO3 + H2
CaCO3 + H2O
CaO + O2
Hint:
When carbon dioxide is passed through calcium hydroxide it turns milky.
The correct answer is: CaCO3 + H2O
Calcium hydroxide is also called lime water. When carbon dioxide is passed through calcium hydroxide it turns milky and calcium carbonate is formed along with water.
Ca(OH)2 + CO2 
CaCO3 + H2O
A- CaCO3, B- H2O
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