General Principles and Processes of Isolation of Elements
A mixture of haematite, coke and limestone, on heating in blast furnace, gives molten iron metal. This is known as:
Correct Answer: Option(a)
Solution: In the extraction of iron:
Smelting is done in blast furnace, where a mixture of haematite, coke and limestone, on heating, gives molten iron metal. It is a combined term for the roasting, reduction and use of fluxes, all of which finally give iron, starting from its ore.