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TOPIC 10

Chemistry of the environment

Chemistry · IGCSE

210 questionsPapersShow all as
0620/111 mark
May/June 2026 · Question 17

6.3 Reversible reactions and equilibrium, 10.1 Water

6.3 Reversible reactions and equilibrium10.1 Water
0620/11 May/June 2026 question 17 question
1 partOpen full size ↗
0620/111 mark
May/June 2026 · Question 31

10.1 Water, 12.4 Separation and purification

10.1 Water12.4 Separation and purification
0620/11 May/June 2026 question 31 question
1 partOpen full size ↗
0620/111 mark
May/June 2026 · Question 32

10.2 Fertilisers

10.2 Fertilisers
0620/11 May/June 2026 question 32 question
1 partOpen full size ↗
0620/111 mark
May/June 2026 · Question 33

10.3 Air quality and climate

10.3 Air quality and climate
0620/11 May/June 2026 question 33 question
1 partOpen full size ↗
0620/121 mark
May/June 2026 · Question 24

10.2 Fertilisers, 7.1 The characteristic properties of acids and bases

10.2 Fertilisers7.1 The characteristic properties of acids and bases
0620/12 May/June 2026 question 24 question
1 partOpen full size ↗
0620/121 mark
May/June 2026 · Question 28

10.1 Water

10.1 Water
0620/12 May/June 2026 question 28 question
1 partOpen full size ↗
0620/121 mark
May/June 2026 · Question 29

10.3 Air quality and climate

10.3 Air quality and climate
0620/12 May/June 2026 question 29 question
1 partOpen full size ↗
0620/121 mark
May/June 2026 · Question 30

10.3 Air quality and climate

10.3 Air quality and climate
0620/12 May/June 2026 question 30 question
1 partOpen full size ↗
0620/131 mark
May/June 2026 · Question 18

10.1 Water, 6.3 Reversible reactions and equilibrium

10.1 Water6.3 Reversible reactions and equilibrium
0620/13 May/June 2026 question 18 question
1 partOpen full size ↗
0620/131 mark
May/June 2026 · Question 31

10.2 Fertilisers

10.2 Fertilisers
0620/13 May/June 2026 question 31 question
1 partOpen full size ↗
0620/131 mark
May/June 2026 · Question 32

10.3 Air quality and climate

10.3 Air quality and climate
0620/13 May/June 2026 question 32 question
1 partOpen full size ↗
0620/211 mark
May/June 2026 · Question 28

10.1 Water, 12.4 Separation and purification

10.1 Water12.4 Separation and purification
0620/21 May/June 2026 question 28 question
1 partOpen full size ↗
0620/211 mark
May/June 2026 · Question 29

10.2 Fertilisers

10.2 Fertilisers
0620/21 May/June 2026 question 29 question
1 partOpen full size ↗
0620/211 mark
May/June 2026 · Question 30

10.3 Air quality and climate

10.3 Air quality and climate
0620/21 May/June 2026 question 30 question
1 partOpen full size ↗
0620/221 mark
May/June 2026 · Question 30

10.3 Air quality and climate

10.3 Air quality and climate
0620/22 May/June 2026 question 30 question
1 partOpen full size ↗
0620/221 mark
May/June 2026 · Question 31

10.3 Air quality and climate

10.3 Air quality and climate
0620/22 May/June 2026 question 31 question
1 partOpen full size ↗
0620/221 mark
May/June 2026 · Question 39

10.1 Water, 12.4 Separation and purification

10.1 Water12.4 Separation and purification
0620/22 May/June 2026 question 39 question
1 partOpen full size ↗
0620/231 mark
May/June 2026 · Question 29

10.1 Water, 12.5 Identification of ions and gases

10.1 Water12.5 Identification of ions and gases
0620/23 May/June 2026 question 29 question
1 partOpen full size ↗
0620/231 mark
May/June 2026 · Question 30

10.3 Air quality and climate

10.3 Air quality and climate
0620/23 May/June 2026 question 30 question
1 partOpen full size ↗
0620/231 mark
May/June 2026 · Question 31

10.3 Air quality and climate

10.3 Air quality and climate
0620/23 May/June 2026 question 31 question
1 partOpen full size ↗
0620/3110 marks
May/June 2026 · Question 7

10.3 Air quality and climate, 10.2 Fertilisers, 12.5 Identification of ions and gases

10.3 Air quality and climate10.2 Fertilisers12.5 Identification of ions and gases
0620/31 May/June 2026 question 7 question
8 partsOpen full size ↗
0620/3212 marks
May/June 2026 · Question 7

10.1 Water, 12.5 Identification of ions and gases, 3.2 Relative masses of atoms and molecules

10.1 Water12.5 Identification of ions and gases3.2 Relative masses of atoms and molecules
0620/32 May/June 2026 question 7 question
8 partsOpen full size ↗
0620/339 marks
May/June 2026 · Question 7

10.1 Water, 10.2 Fertilisers, 12.5 Identification of ions and gases

10.1 Water10.2 Fertilisers12.5 Identification of ions and gases
0620/33 May/June 2026 question 7 question
6 partsOpen full size ↗
0620/121 mark
Feb/Mar 2026 · Question 27

10.1 Water

10.1 Water
0620/12 Feb/Mar 2026 question 27 question
1 partOpen full size ↗
0620/121 mark
Feb/Mar 2026 · Question 28

10.2 Fertilisers

10.2 Fertilisers
0620/12 Feb/Mar 2026 question 28 question
1 partOpen full size ↗
0620/121 mark
Feb/Mar 2026 · Question 29

10.3 Air quality and climate

10.3 Air quality and climate
0620/12 Feb/Mar 2026 question 29 question
1 partOpen full size ↗
0620/121 mark
Feb/Mar 2026 · Question 30

10.3 Air quality and climate

10.3 Air quality and climate
0620/12 Feb/Mar 2026 question 30 question
1 partOpen full size ↗
0620/221 mark
Feb/Mar 2026 · Question 15

10.1 Water, 12.5 Identification of ions and gases

10.1 Water12.5 Identification of ions and gases
0620/22 Feb/Mar 2026 question 15 question
1 partOpen full size ↗
0620/221 mark
Feb/Mar 2026 · Question 25

10.1 Water, 10.2 Fertilisers

10.1 Water10.2 Fertilisers
0620/22 Feb/Mar 2026 question 25 question
1 partOpen full size ↗
0620/221 mark
Feb/Mar 2026 · Question 26

10.3 Air quality and climate

10.3 Air quality and climate
0620/22 Feb/Mar 2026 question 26 question
1 partOpen full size ↗
Chemistry of the environment: IGCSE Chemistry (0620) past paper questions | Past Paper Pigeon