5070/42/O/N/24 · O Level Chemistry October/November 2024 Paper 42
4 questions, 40 marks. Each one links to its official mark scheme.
- Question 1 · 6 marks · Preparation of salts, Experimental design, Separation and purification
- Question 2 · 14 marks · Acid–base titrations, The mole and the Avogadro constant
- Question 3 · 9 marks · Identification of ions and gases
- Question 4 · 11 marks · Identification of ions and gases, The characteristic properties of acids and bases
Questions and mark schemes from Cambridge International past papers. Paperstreak isn't affiliated with Cambridge.