CH-1635
Tests for gases
Chemistry · Secondary 4 · Easy · Tests for gases
A student wants to confirm that a colourless gas is sulfur dioxide. Which test should they carry out?
- Test with a lighted splint; gas burns with a pop.
- Bubble through limewater; solution turns milky.
- Use damp litmus paper; it is bleached.
- Bubble through acidified potassium manganate(VII); it turns colourless.
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