O Level Chemistry (5070)

Chemistry of the environment Banker

34 questions · about 3% of the marks we indexed · examined in 9 of 9 sessions.

Questions by year

Paper

2025 Oct/Nov · Paper 11 · Q281 markWater (treatment, tests, pollution)
2025 Oct/Nov · Paper 11 · Q291 markClimate change & carbon cycle
2025 Oct/Nov · Paper 21 · Q10 (a, b(i), b(ii), c(i), c(ii))5 marksAir quality & pollutants · Climate change & carbon cycle · Composition of air
2025 May/June · Paper 11 · Q291 markWater (treatment, tests, pollution)
2025 May/June · Paper 11 · Q301 markAir quality & pollutants
2025 May/June · Paper 11 · Q311 markClimate change & carbon cycle
2025 May/June · Paper 21 · Q5 (b(i), b(ii), c(i))6 marksAir quality & pollutants

2024 Oct/Nov · Paper 11 · Q281 markWater (treatment, tests, pollution)
2024 Oct/Nov · Paper 11 · Q291 markFertilisers
2024 Oct/Nov · Paper 11 · Q301 markAir quality & pollutants
2024 Oct/Nov · Paper 21 · Q1 (a(iv))1 markWater (treatment, tests, pollution)
2024 Oct/Nov · Paper 21 · Q6 (e(i), e(ii))3 marksAir quality & pollutants
2024 May/June · Paper 11 · Q321 markFertilisers
2024 May/June · Paper 21 · Q1 (d)1 markWater (treatment, tests, pollution)
2024 May/June · Paper 21 · Q6 (a, b, c(i), c(ii), d)7 marksClimate change & carbon cycle

2023 Oct/Nov · Paper 11 · Q301 markWater (treatment, tests, pollution)
2023 Oct/Nov · Paper 11 · Q311 markAir quality & pollutants
2023 Oct/Nov · Paper 21 · Q1 (a, c)2 marksAir quality & pollutants · Water (treatment, tests, pollution)
2023 Oct/Nov · Paper 21 · Q7 (e(i), e(ii))2 marksAir quality & pollutants
2023 May/June · Paper 11 · Q301 markWater (treatment, tests, pollution)
2023 May/June · Paper 11 · Q311 markWater (treatment, tests, pollution)
2023 May/June · Paper 11 · Q321 markClimate change & carbon cycle
2023 May/June · Paper 21 · Q9 (c, d)2 marksAir quality & pollutants

2022 Oct/Nov · Paper 11 · Q341 markClimate change & carbon cycle
2022 Oct/Nov · Paper 11 · Q351 markWater (treatment, tests, pollution)
2022 Oct/Nov · Paper 21 · Q2 (b(i))1 markClimate change & carbon cycle
2022 Oct/Nov · Paper 21 · Q3 (d)1 markAir quality & pollutants
2022 Oct/Nov · Paper 21 · Q6 (b(ii))1 markAir quality & pollutants
2022 May/June · Paper 11 · Q331 markComposition of air
2022 May/June · Paper 21 · Q6 (a)1 markAir quality & pollutants
2022 May/June · Paper 21 · Q9 (c(i), c(ii), d(i))3 marksFertilisers · Water (treatment, tests, pollution)

Find the full paper on the official Cambridge past-papers page or ask your school. “Paper 42” means Paper 4, variant 2.

Subtopic	Marks indexed	Sessions
Air quality & pollutants	22	7/9
Climate change & carbon cycle	15	6/9
Water (treatment, tests, pollution) Banker	13	9/9
Fertilisers	4	4/9
Composition of air Rare	2	2/9