O-LevelChemistryAtomic Structure5070/11 · Oct/Nov 2010 · Q21 Mark

The diagram shows a diffusion experiment. Which gas, when present in the beaker over the porous pot, will cause the water level at Y to rise?

This question uses a diagram from the original paper, which isn't shown here. Open the full paper from the past papers archive to see it.

Acarbon dioxide, CO2

Bchlorine, Cl2

Cmethane, CH4

Dnitrogen dioxide, NO2

✓ Correct answer

C: methane, CH4

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Topic: Atomic Structure, O-Level Chemistry (syllabus 5070). Multiple choice, 1 mark.
Source: O-Level Chemistry, Oct/Nov 2010 Paper 1 Variant 1, question 2.

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