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Question

Which of the following reactions occurs in the zone of heat absorption of the blast furnace in the metallurgy of iron?

A
CO2+C2CO
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B
Fe2O3+3CO2Fe+3CO2
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C
C+O2CO2
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D
FeO+SiO2FeSiO3
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Solution

The correct option is A CO2+C2CO
In the zone of heat absorption, in the middle portion (temperature 1075K1275K),CO2 rising up is reduced to CO with the absorption of heat: CO2+C2CO;ΔH=163KJ/mol.

In the zone of fusion, C+O2CO2 reaction takes place.

In the zone of reduction, Fe2O3+CO2Fe+3CO2 takes place.

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