5070/22/O/N/21 · O Level Chemistry October/November 2021 Paper 22
10 questions, 85 marks. Each one links to its official mark scheme.
- Question 1 · 5 marks · Ion and ionic bonds, Identification of ions and gases, Preparation of salts, The characteristic properties of acids and bases
- Question 2 · 10 marks · Air quality and climate, Identification of ions and gases
- Question 3 · 10 marks · Rate of reaction, The mole and the Avogadro constant, Redox
- Question 4 · 10 marks · Fuels, Formulae, functional groups and terminology, Alkanes, Alkenes, The mole and the Avogadro constant
- Question 5 · 5 marks · Redox, Identification of ions and gases, Group VII properties
- Question 6 · 5 marks · Exothermic and endothermic reactions, Formulae
- Question 7 · 10 marks · Properties of metals, Isotopes, Formulae, Reversible reactions and equilibrium
- Question 8 · 10 marks · Formulae, functional groups and terminology, Alkenes, Carboxylic acids, Polymers, The characteristic properties of acids and bases
- Question 9 · 10 marks · Electrolysis, The mole and the Avogadro constant, The characteristic properties of acids and bases
- Question 10 · 10 marks · Arrangement of elements, Ion and ionic bonds, Simple molecules and covalent bonds, The mole and the Avogadro constant
Questions and mark schemes from Cambridge International past papers. Paperstreak isn't affiliated with Cambridge.