5070/41/M/J/25 · O Level Chemistry May/June 2025 Paper 41
4 questions, 40 marks. Each one links to its official mark scheme.
- Question 1 · 6 marks · Experimental design, The mole and the Avogadro constant
- Question 2 · 14 marks · The mole and the Avogadro constant, Acid–base titrations, Rate of reaction, Experimental design
- Question 3 · 14 marks · Group VII properties, Identification of ions and gases
- Question 4 · 6 marks · Separation and purification
Questions and mark schemes from Cambridge International past papers. Paperstreak isn't affiliated with Cambridge.