In blast furnace, iron oxide is reduced by:

hot blast of air

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carbon monoxide

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carbon

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silica

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Solution

The correct options are
A carbon
D carbon monoxide
In blast furnace, iron oxide is reduced by carbon monoxide to iron metal.
$F e_{2} O_{3} + 3 C O \to 2 F e + 3 C O_{2}$
A small amount of iron oxide is also reduced by carbon to iron metal.
$F e_{2} O_{3} + 3 C \to 2 F e + 3 C O$

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F e_{2} O_{3}

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