5070/21/O/N/22 · O Level Chemistry October/November 2022 Paper 21
9 questions, 85 marks. Each one links to its official mark scheme.
- Question 1 · 5 marks · Alkenes, Extraction of metals, Reactivity series, Arrangement of elements
- Question 2 · 8 marks · Simple molecules and covalent bonds, Solids, liquids and gases, Air quality and climate, Rate of reaction, Alkanes, Fuels
- Question 3 · 10 marks · Formulae, functional groups and terminology, Naming organic compounds, Alkenes, Air quality and climate, Formulae, The mole and the Avogadro constant
- Question 4 · 11 marks · Reversible reactions and equilibrium, Rate of reaction, The mole and the Avogadro constant, The characteristic properties of acids and bases, Exothermic and endothermic reactions, Formulae
- Question 5 · 11 marks · Redox, Metallic bonding, Extraction of metals, Identification of ions and gases, Ion and ionic bonds, Electrolysis, Uses of metals
- Question 6 · 10 marks · Reversible reactions and equilibrium, Formulae, Air quality and climate, The characteristic properties of acids and bases
- Question 7 · 10 marks · Formulae, Formulae, functional groups and terminology, Naming organic compounds, Polymers
- Question 8 · 10 marks · Alloys and their properties, Reactivity series, Isotopes, Preparation of salts, Group VII properties
- Question 9 · 10 marks · The mole and the Avogadro constant, Rate of reaction, Electrolysis, Corrosion of metals
Questions and mark schemes from Cambridge International past papers. Paperstreak isn't affiliated with Cambridge.