1.

Haematite is reduced in a blastfurnance by

Answer»

CO
`CO_2`
`SO_2`
`C`

SOLUTION :In blast furnance , following REACTION occurs
`3Fe_(2)O_(3) +CO overset(300-400^(@)C)to 2Fe_(3)O_(4)+CO_(2)`
`Fe_(3)O_(4) +4CO overset(500-600^(@)C)to 3FeO+4CO+(1)/(4)O_(2)`
`FeO+CO overset(700^(@)C)to Fe+CO_(2) `


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