A-LevelChemistryNitrogen and sulfur9701/12 · Oct/Nov 2011 · Q81 Mark

Which pollutant, present in the exhaust fumes of an internal combustion engine, has an element in the +2 oxidation state and an odd number of electrons in one molecule of the pollutant?

ACO

BH2S

CNO

DNO2

✓ Correct answer

C: NO

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Topic: Nitrogen and sulfur, A-Level Chemistry (syllabus 9701). Multiple choice, 1 mark.
Source: A-Level Chemistry, Oct/Nov 2011 Paper 1 Variant 2, question 8.

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