The chief ores of iron are haemalite `(Fe_2O_3)` , magnetite `(Fe_3O_4)` , limonite `(FeO(OH))` and siderite `(FeCO_3)`.In the extraction of iron , ox
The chief ores of iron are haemalite `(Fe_2O_3)` , magnetite `(Fe_3O_4)` , limonite `(FeO(OH))` and siderite `(FeCO_3)`.In the extraction of iron , oxides ores of iron, after concentration through calcination/roasting in reverberatory furnace are mixed with lime stone and coke and fed into a blast furnace. Here, the oxide is reduced to the metal.
Which of the following is obtained as a slag in the extraction of iron from haematite ore ?
A. `FeSiO_3`
B. `CaSiO_3`
C. `CaCO_3`
D. `MgSiO_3`
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