Chemistry · May / June 2026 · Paper 11 · Question 27

Process 1: Iron is extracted from hematite in a blast furnace. Process 2: Aluminium is extracted from purified bauxite in an electrolytic cell. Which statements are correct for both processes? 1 An oxide in the ore is reduced. 2 Carbon reacts with oxygen to form carbon dioxide. 3 Impurities are removed as slag. 4 Thermal decomposition takes place.

1. A1 and 2
2. B1 and 4
3. C2 and 3
4. D3 and 4

As printed in the paper