CH-1319
Collecting gases
Chemistry · Secondary 4 · Easy · Collecting gases
A gaseous mixture of nitrogen and carbon dioxide is passed through substance X, then through substance Y. Dry nitrogen is collected at the end. Which pair correctly identifies X and Y?
- X is water, Y is concentrated sulfuric acid
- X is limewater, Y is concentrated sulfuric acid
- X is water, Y is aqueous sodium hydroxide
- X is limewater, Y is aqueous sodium hydroxide
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