Which among following processes occurs at $1500 \mathrm{~K}$ in blast furnace for extraction of iron?
Which among following processes occurs at $1500 \mathrm{~K}$ in blast furnace for extraction of iron?
Reduction of ore
Ore loses moisture
Combustion of coke
Slag formation
Solution
The slag formed in the extraction of iron from haematite in the blast furnace is $\mathrm{CaSiO}_{3}$. The reaction in the blast furnace is as follows:
$\mathrm{CaO}+\mathrm{SiO}_{2} \rightarrow \mathrm{CaSiO}_{3} \text { (slag) }$