Cambridge (CAIE) · IGCSE
Chemistry question 4
0620/42 · Oct/Nov 2025 · Theory (Extended)
Syllabus topics
- Electrolysis
- Hydrogen–oxygen fuel cells
- The characteristic properties of acids and bases
- Redox
- Acid–base titrations
- Preparation of salts
Question 4
0620/42 · Oct/Nov 2025