O-LevelChemistryChemistry of the Environment5070/11 · Oct/Nov 2011 · Q281 Mark

Which gas cannot be removed from the exhaust gases of a petrol-powered car by its catalytic converter?

Acarbon dioxide

Bcarbon monoxide

Chydrocarbons

Dnitrogen dioxide

✓ Correct answer

A: carbon dioxide

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Topic: Chemistry of the Environment, O-Level Chemistry (syllabus 5070). Multiple choice, 1 mark.
Source: O-Level Chemistry, Oct/Nov 2011 Paper 1 Variant 1, question 28.

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