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PAPER 4 · THEORY (EXTENDED)

0620/42 Oct/Nov 2025

1 hour 15 minutes · 80 marks · 6 questions

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0620/4213 marks
Oct/Nov 2025 · Question 1

1.1 Solids, liquids and gases, 1.2 Diffusion, 10.3 Air quality and climate

1.1 Solids, liquids and gases1.2 Diffusion10.3 Air quality and climate
0620/42 Oct/Nov 2025 question 1 question
7 partsOpen full size ↗
0620/4219 marks
Oct/Nov 2025 · Question 2

9.6 Extraction of metals, 2.3 Isotopes, 2.2 Atomic structure and the Periodic Table, 6.4 Redox, 12.5 Identification of ions and gases

9.6 Extraction of metals2.3 Isotopes2.2 Atomic structure and the Periodic Table6.4 Redox12.5 Identification of ions and gases
0620/42 Oct/Nov 2025 question 2 question
12 partsOpen full size ↗
0620/4213 marks
Oct/Nov 2025 · Question 3

7.3 Preparation of salts, 3.2 Relative masses of atoms and molecules, 3.3 The mole and the Avogadro constant

7.3 Preparation of salts3.2 Relative masses of atoms and molecules3.3 The mole and the Avogadro constant
0620/42 Oct/Nov 2025 question 3 question
8 partsOpen full size ↗
0620/4215 marks
Oct/Nov 2025 · Question 4

7.1 The characteristic properties of acids and bases, 4.1 Electrolysis

7.1 The characteristic properties of acids and bases4.1 Electrolysis
0620/42 Oct/Nov 2025 question 4 question
11 partsOpen full size ↗
0620/4212 marks
Oct/Nov 2025 · Question 5

11.4 Alkanes, 11.1 Formulae, functional groups and terminology

11.4 Alkanes11.1 Formulae, functional groups and terminology
0620/42 Oct/Nov 2025 question 5 question
7 partsOpen full size ↗
0620/428 marks
Oct/Nov 2025 · Question 6

11.1 Formulae, functional groups and terminology, 11.2 Naming organic compounds, 11.6 Alcohols, 11.7 Carboxylic acids

11.1 Formulae, functional groups and terminology11.2 Naming organic compounds11.6 Alcohols11.7 Carboxylic acids
0620/42 Oct/Nov 2025 question 6 question
7 partsOpen full size ↗

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