The materials mixed with the ore before it is | vedclass

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Question

(B) In the extraction of iron from its ore,haematite $(Fe_2O_3)$,the ore is mixed with coke and limestone before being charged into the blast furnace.

Vedclass · Accepted Answer

coke and limestone

Vedclass · Answer

(B) In the extraction of iron from its ore,haematite $(Fe_2O_3)$,the ore is mixed with coke and limestone before being charged into the blast furnace.Coke acts as a reducing agent,reducing $Fe_2O_3$ to molten iron.Limestone $(CaCO_3)$ acts as a flux,which decomposes to $CaO$ and $CO_2$. The $CaO$ reacts with silica $(SiO_2)$ impurities present in the ore to form calcium silicate $(CaSiO_3)$ slag,which is easily removed.

The materials mixed with the ore before it is subjected to smelting in the extraction of iron are:

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