CH-676
Tests for gases
Chemistry · Secondary 3 · Easy · Tests for gases
A sample of gas is tested with a lighted splint. The splint goes out and a colourless gas is left. Which gas test should be done next to confirm that the gas is carbon dioxide?
- Test with moist red litmus paper for bleaching.
- Bubble the gas through limewater.
- Test with a glowing splint for relighting.
- Bring a lighted splint near to hear a ‘pop’.
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