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In blast furnace, iron oxide is reduced ...

In blast furnace, iron oxide is reduced by

A

hot blast of air

B

carbon monoxide

C

carbon

D

silica

Text Solution

Verified by Experts

The correct Answer is:
b
`3Fe_(2)O_(3)+COoverset(300-400^(@)C)to2Fe_(3)O_(4)+CO_(2)`
`Fe_(3)O_(4)+COoverset(500-600^(@)C)to3FeO+CO_(2)`
`FeO+COoverset(700^(@)C)toFe+co_(2)`
Iron formed is called spongy iron. In the reduction reactions heat is also evolved which decomposes a part of carbon monoxide into carbon
`2COunderset(iron)overset(hot spongy)toCO_(2)+C`
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