In the extraction of iron from its ore,the sl | vedclass

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(C) In the blast furnace,the iron ore is reduced to iron. The impurities present in the ore,such as silica $(SiO_2)$,are removed by adding limestone $

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$CaSiO_3 + 	ext{aluminium silicate}$

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(C) In the blast furnace,the iron ore is reduced to iron. The impurities present in the ore,such as silica $(SiO_2)$,are removed by adding limestone $(CaCO_3)$ as a flux.$CaCO_3$ decomposes to form $CaO$ and $CO_2$.$CaCO_3 \rightarrow CaO + CO_2$$CaO$ then reacts with the silica impurity $(SiO_2)$ to form calcium silicate $(CaSiO_3)$,which is the slag.$CaO + SiO_2 \rightarrow CaSiO_3$ (Slag)Therefore,the slag produced is primarily $CaSiO_3$ along with other silicate impurities like aluminium silicate if alumina is present in the ore.

In the extraction of iron from its ore,the slag produced in the blast furnace is a mixture of......?

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