Explain the extraction of iron.

The iron is extracted in the blast furnace, from haematite
ore (Fe2O3). To remove the impurities from the iron ore, carbon monoxide is needed to
reduce the iron.

The process of extraction of iron starts
with the burning of carbon because of the hot air blasted in the
furnace.

The chemical reactions are as it follows
below:

C + O2 -> CO2 (gas) +
heat

CO2 + C ->
2CO

Carbon monoxide reacts with the iron in ore, reducing
it to iron metal.

We'll write the balanced chemical
reaction:

3CO + Fe2CO3 -> 3CO2 +
2Fe

Since the temperature of the furnace is very high, 2000
degrees Celsius, the state of the iron metal is liquid.