0620/211 mark
May/June 2026 · Question 12
4.1 Electrolysis
4.1 Electrolysis

0620/211 mark
May/June 2026 · Question 13
4.1 Electrolysis
4.1 Electrolysis

0620/211 mark
May/June 2026 · Question 14
4.2 Hydrogen–oxygen fuel cells
4.2 Hydrogen–oxygen fuel cells

0620/221 mark
May/June 2026 · Question 11
4.1 Electrolysis
4.1 Electrolysis

0620/221 mark
May/June 2026 · Question 12
4.1 Electrolysis
4.1 Electrolysis

0620/221 mark
May/June 2026 · Question 13
4.1 Electrolysis
4.1 Electrolysis

0620/221 mark
May/June 2026 · Question 28
4.1 Electrolysis, 9.6 Extraction of metals
4.1 Electrolysis9.6 Extraction of metals

0620/231 mark
May/June 2026 · Question 14
4.1 Electrolysis
4.1 Electrolysis

0620/231 mark
May/June 2026 · Question 15
4.1 Electrolysis, 12.5 Identification of ions and gases
4.1 Electrolysis12.5 Identification of ions and gases

0620/231 mark
May/June 2026 · Question 16
4.1 Electrolysis, 9.6 Extraction of metals
4.1 Electrolysis9.6 Extraction of metals

0620/221 mark
Feb/Mar 2026 · Question 10
4.1 Electrolysis
4.1 Electrolysis

0620/221 mark
Feb/Mar 2026 · Question 11
4.2 Hydrogen–oxygen fuel cells
4.2 Hydrogen–oxygen fuel cells

0620/211 mark
Oct/Nov 2025 · Question 12
4.1 Electrolysis
4.1 Electrolysis

0620/211 mark
Oct/Nov 2025 · Question 13
4.1 Electrolysis, 6.4 Redox
4.1 Electrolysis6.4 Redox

0620/211 mark
Oct/Nov 2025 · Question 29
4.1 Electrolysis, 9.6 Extraction of metals
4.1 Electrolysis9.6 Extraction of metals

0620/221 mark
Oct/Nov 2025 · Question 12
4.2 Hydrogen–oxygen fuel cells
4.2 Hydrogen–oxygen fuel cells

0620/221 mark
Oct/Nov 2025 · Question 13
4.1 Electrolysis
4.1 Electrolysis

0620/221 mark
Oct/Nov 2025 · Question 29
9.6 Extraction of metals, 4.1 Electrolysis
9.6 Extraction of metals4.1 Electrolysis

0620/231 mark
Oct/Nov 2025 · Question 13
4.1 Electrolysis
4.1 Electrolysis

0620/231 mark
Oct/Nov 2025 · Question 14
4.1 Electrolysis
4.1 Electrolysis

0620/231 mark
Oct/Nov 2025 · Question 15
4.2 Hydrogen–oxygen fuel cells
4.2 Hydrogen–oxygen fuel cells

0620/231 mark
Oct/Nov 2025 · Question 33
4.1 Electrolysis, 9.6 Extraction of metals
4.1 Electrolysis9.6 Extraction of metals

0620/211 mark
May/June 2025 · Question 10
4.1 Electrolysis
4.1 Electrolysis

0620/211 mark
May/June 2025 · Question 11
4.1 Electrolysis
4.1 Electrolysis

0620/211 mark
May/June 2025 · Question 12
4.2 Hydrogen–oxygen fuel cells
4.2 Hydrogen–oxygen fuel cells

0620/221 mark
May/June 2025 · Question 10
4.1 Electrolysis
4.1 Electrolysis

0620/221 mark
May/June 2025 · Question 11
4.1 Electrolysis
4.1 Electrolysis

0620/221 mark
May/June 2025 · Question 12
4.2 Hydrogen–oxygen fuel cells
4.2 Hydrogen–oxygen fuel cells

0620/231 mark
May/June 2025 · Question 10
4.1 Electrolysis
4.1 Electrolysis

0620/231 mark
May/June 2025 · Question 12
4.1 Electrolysis
4.1 Electrolysis
