Chemistry · Oct / Nov 2023 · Paper 11 · Question 31
Gases that may be present in the air are listed. 1 neon 2 carbon monoxide 3 nitrogen 4 methane Which gases are atmospheric pollutants?
- A1 and 2
- B1 and 3
- C2 and 4
- D3 and 4
As printed in the paper
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Correct answer: C. 2 and 4
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