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The chemical process in the production o...

The chemical process in the production of steel from haematite ore involves

A

Reduction

B

Oxidation

C

Reduction followed by oxidation

D

Oxidation followed by reduction

Text Solution

Verified by Experts

The correct Answer is:
D
First, by calcination and roasting, the ferrous oxide is oxidised of ferric oxde. Then, in blast furnace, smelting is done, where it is reducing to get iron.
`4FeO + O_(2) rarr 2Fe_(2)O_(3)`
`Fe_(2)O_(3) + CO rarr 2Fe_(3)O_(4) + CO_(2)`
`Fe_(2)O_(3) + CO rarr FeO + CO_(2)`
`FeO + Co rarr Fe + CO_(2)`.
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