How it is useful in extraction of iron from its ore?

The extraction of iron from its ore, primarily through smelting in a blast furnace, involves the reduction of iron oxides using carbon in the form of coke. This process also utilizes limestone as a flux to remove impurities, forming slag. The high temperatures in the furnace facilitate the reduction reaction, allowing iron to be separated from its ore effectively. Overall, this method is efficient and allows for the large-scale production of iron.