5070/21/M/J/24 · O Level Chemistry May/June 2024 Paper 21
9 questions, 80 marks. Each one links to its official mark scheme.
- Question 1 · 5 marks · Transition elements, Giant covalent structures, Reversible reactions and equilibrium, Water, Formulae
- Question 2 · 13 marks · Formulae, Ion and ionic bonds, Fuels, Alkenes, Simple molecules and covalent bonds, Exothermic and endothermic reactions
- Question 3 · 9 marks · The mole and the Avogadro constant, Rate of reaction, The characteristic properties of acids and bases
- Question 4 · 9 marks · Ion and ionic bonds, Electrolysis, Redox
- Question 5 · 11 marks · Reversible reactions and equilibrium, The mole and the Avogadro constant, Oxides, Formulae
- Question 6 · 7 marks · Air quality and climate
- Question 7 · 9 marks · Solids, liquids and gases, Diffusion, Isotopes
- Question 8 · 9 marks · Naming organic compounds, Formulae, functional groups and terminology, Carboxylic acids
- Question 9 · 8 marks · Polymers, The mole and the Avogadro constant
Questions and mark schemes from Cambridge International past papers. Paperstreak isn't affiliated with Cambridge.