Chemistry
Grade-10
Easy
Question
What is the gas upon passing through the lime solution and turns to milky white?
- H2
- N2
- CO
Hint:
Carbon dioxide upon passing through the lime solution and turns to milky white.
The correct answer is:
- Calcium hydroxide also called lime water.
- CaO + H2O
Ca(OH)2
Lime water + Carbon dioxide Calcium carbonate + Water
- Ca(OH)2 + CO2 CaCO3 + H2O
Calcium carbonate is milky white in nature.
- Carbon dioxide upon passing through the lime solution and turns to milky white.
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