The chief ores of iron are haemalite `(Fe_2O_3)` , magnetite `(Fe_3O_4)` , limonite `(FeO(OH))`
Channel: Doubtnut
Date: 12/04/2020

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 ?