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Question

The chemical processes in the production of steel from haematite ore involve:

A
reduction
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B
oxidation
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C
reduction followed by oxidation
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D
oxidation followed by reduction
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Solution

The correct option is B oxidation followed by reduction
Firstly carbon which is added along with crushed hematite ore is oxidized to CO and CO2 and the second the produced CO acts as a chief reducing agent for the reduction of haematite to steel.

Option D is correct.

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