A-LevelChemistryNitrogen and sulfur9701/12 · Oct/Nov 2021 · Q181 Mark

Oxides of nitrogen are present in the environment due to natural and man-made sources. Which row is correct?

Aelectrical discharges in the atmosphere (natural), internal combustion engines (man-made)

Belectrical discharges in the atmosphere (natural), as a by-product of the Haber process (man-made)

Cdecomposition of dead plants in rivers (natural), internal combustion engines (man-made)

Ddecomposition of dead plants in rivers (natural), as a by-product of the Haber process (man-made)

✓ Correct answer

A: electrical discharges in the atmosphere (natural), internal combustion engines (man-made)

Oracle Prep sorts past-paper questions by topic, so you can drill Nitrogen and sulfur and see which topics are most likely to come up next.

Topic: Nitrogen and sulfur, A-Level Chemistry (syllabus 9701). Multiple choice, 1 mark.
Source: A-Level Chemistry, Oct/Nov 2021 Paper 1 Variant 2, question 18.

Questions and mark schemes are from past examination papers and remain the copyright of the exam board. How Oracle Prep builds its content