O-LevelChemistryChemistry of the Environment5070/11 · Oct/Nov 2016 · Q331 Mark

The table shows some atmospheric pollutants and their possible effects. Which row is not correct?

Apollutant: CFCs, effect: cause depletion of the ozone layer

Bpollutant: CO₂, effect: forms photochemical smog

Cpollutant: CO, effect: is poisonous to humans

Dpollutant: NO₂, effect: forms acid rain

✓ Correct answer

B: pollutant: CO₂, effect: forms photochemical smog

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Topic: Chemistry of the Environment, O-Level Chemistry (syllabus 5070). Multiple choice, 1 mark.
Source: O-Level Chemistry, Oct/Nov 2016 Paper 1 Variant 1, question 33.

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