1.

The chief reaction(s) occurring in blast furnace during extraction of iron from haematite is / are :

Answer»

`Fe_(2)O_(3)+ 3CO to2Fe+3CO_(2)`
`FeO +SiO_(2) to FeSiO_(3)`
`Fe_(2)O_(3)+C to 2Fe+3CO`
`CaO+SiO_(2) to CaSiO_(3)`

Solution :In extraction of `Fe,Fe_(2)O_(3)` is primary reduced by CO below `710^(@)C` and ACIDIC impurity of `SiO_(2)` is removed is the form of `CaSiO_(3)` (slag).


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