Home / IGCSE / Chemistry / Papers / 0620/42 PAPER 4 · THEORY (EXTENDED)
0620/42 Feb/Mar 2023 1 hour 15 minutes · 80 marks · 5 questions
⌕ Subtopic All subtopics 1.1 · Solids, liquids and gases 1.2 · Diffusion 2.1 · Elements, compounds and mixtures 2.2 · Atomic structure and the Periodic Table 2.3 · Isotopes 2.4 · Ions and ionic bonds 2.5 · Simple molecules and covalent bonds 2.6 · Giant covalent structures 2.7 · Metallic bonding 3.1 · Formulae 3.2 · Relative masses of atoms and molecules 3.3 · The mole and the Avogadro constant 4.1 · Electrolysis 4.2 · Hydrogen–oxygen fuel cells 5.1 · Exothermic and endothermic reactions 6.1 · Physical and chemical changes 6.2 · Rate of reaction 6.3 · Reversible reactions and equilibrium 6.4 · Redox 7.1 · The characteristic properties of acids and bases 7.2 · Oxides 7.3 · Preparation of salts 8.1 · Arrangement of elements 8.2 · Group I properties 8.3 · Group VII properties 8.4 · Transition elements 8.5 · Noble gases 9.1 · Properties of metals 9.2 · Uses of metals 9.3 · Alloys and their properties 9.4 · Reactivity series 9.5 · Corrosion of metals 9.6 · Extraction of metals 10.1 · Water 10.2 · Fertilisers 10.3 · Air quality and climate 11.1 · Formulae, functional groups and terminology 11.2 · Naming organic compounds 11.3 · Fuels 11.4 · Alkanes 11.5 · Alkenes 11.6 · Alcohols 11.7 · Carboxylic acids 11.8 · Polymers 12.1 · Experimental design 12.2 · Acid–base titrations 12.3 · Chromatography 12.4 · Separation and purification 12.5 · Identification of ions and gases Exam series All series Feb/Mar 2023
5 questionsShow all as Questions Answers Side by side (experimental)
0620/42 11 marks
Feb/Mar 2023 · Question 1
10.3 Air quality and climate, 1.2 Diffusion, 2.5 Simple molecules and covalent bonds 10.3 Air quality and climate 1.2 Diffusion 2.5 Simple molecules and covalent bonds
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0620/42 16 marks
Feb/Mar 2023 · Question 2
8.2 Group I properties, 2.3 Isotopes, 2.4 Ions and ionic bonds 8.2 Group I properties 2.3 Isotopes 2.4 Ions and ionic bonds
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0620/42 18 marks
Feb/Mar 2023 · Question 3
6.3 Reversible reactions and equilibrium, 5.1 Exothermic and endothermic reactions, 6.2 Rate of reaction, 10.2 Fertilisers, 3.2 Relative masses of atoms and molecules 6.3 Reversible reactions and equilibrium 5.1 Exothermic and endothermic reactions 6.2 Rate of reaction 10.2 Fertilisers 3.2 Relative masses of atoms and molecules
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0620/42 18 marks
Feb/Mar 2023 · Question 4
9.3 Alloys and their properties, 9.1 Properties of metals, 8.4 Transition elements, 7.2 Oxides, 3.3 The mole and the Avogadro constant 9.3 Alloys and their properties 9.1 Properties of metals 8.4 Transition elements 7.2 Oxides 3.3 The mole and the Avogadro constant
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0620/42 17 marks
Feb/Mar 2023 · Question 5
11.1 Formulae, functional groups and terminology, 11.4 Alkanes, 11.5 Alkenes, 11.6 Alcohols, 11.7 Carboxylic acids, 11.8 Polymers 11.1 Formulae, functional groups and terminology 11.4 Alkanes 11.5 Alkenes 11.6 Alcohols 11.7 Carboxylic acids 11.8 Polymers
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