Question:
The purest form of iron is prepared by oxidising impurities from cast iron in a reverberatory furnace. Which iron ore is used to line the furnace? Explain by giving a reaction.
Solution:
Haematite ore (Fe2O3) is the iron ore used to line the reverberatory furnace.
Fe2O3 + 3 C → 2 Fe + 3CO
Haematite is reduced by coke to wrought iron and the coke gets oxidised to CO.