CH-667
Tests for gases
Chemistry · Secondary 3 · Easy · Tests for gases
A student tests three gases using a lighted splint and damp red litmus paper.
Gas X: relights a glowing splint.
Gas Y: turns damp red litmus paper blue.
Gas Z: gives a squeaky pop with a lighted splint.
Which row correctly identifies the gases?
Gas X: relights a glowing splint.
Gas Y: turns damp red litmus paper blue.
Gas Z: gives a squeaky pop with a lighted splint.
Which row correctly identifies the gases?
- X: oxygen, Y: ammonia, Z: hydrogen
- X: hydrogen, Y: oxygen, Z: ammonia
- X: carbon dioxide, Y: ammonia, Z: oxygen
- X: oxygen, Y: hydrogen, Z: ammonia
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