1.

The reaction (s) which does (da) occur in the blast furnace in the extraction of iron from hacmatite are is (are)

Answer»

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

Solution :Reactions OCCURING in blast furnace are
`3Fe_(2)O_(3)+CO OVERSET(300-400^(@)C) to 2Fe_(3)O_(4)+CO_(2)`
`Fe_(2)O_(4)+CO overset(500-600^(@)C) to 3FeO+CO_(2)`
`FeO+CO overset(700^(@)C toFe+CO_(2)`
Slage is also formed in blast furnace.
`SiO_(2)+CaO to CaSiO_(3)` (slag)


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