5070/22/O/N/23 · O Level Chemistry October/November 2023 Paper 22
9 questions, 80 marks. Each one links to its official mark scheme.
- Question 1 · 5 marks · Air quality and climate, Water, Alcohols, Ion and ionic bonds
- Question 2 · 13 marks · Transition elements, Isotopes, Formulae, Atomic structure and the Periodic Table, Reactivity series, Corrosion of metals, Uses of metals
- Question 3 · 8 marks · Formulae, Rate of reaction, Solids, liquids and gases
- Question 4 · 10 marks · Electrolysis, Identification of ions and gases, Redox, Simple molecules and covalent bonds
- Question 5 · 10 marks · Alkenes, Formulae, functional groups and terminology, Solids, liquids and gases, Polymers
- Question 6 · 7 marks · Exothermic and endothermic reactions, Air quality and climate, Hydrogen–oxygen fuel cells
- Question 7 · 11 marks · The mole and the Avogadro constant, The characteristic properties of acids and bases, Air quality and climate
- Question 8 · 7 marks · Reversible reactions and equilibrium, Naming organic compounds, Formulae, functional groups and terminology
- Question 9 · 9 marks · Giant covalent structures, Metallic bonding, Formulae
Questions and mark schemes from Cambridge International past papers. Paperstreak isn't affiliated with Cambridge.