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Question

The reactions which does/do not occur in the reduction zone in the extraction of iron from haematite ore is

A
Fe2O3+CO2FeO+CO2
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B
FeO+COFeO+CO2
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C
Fe2O3+3C2Fe+3CO
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D
CaO+SiO2CaSiO3
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Solution

The correct options are
C Fe2O3+3C2Fe+3CO
D CaO+SiO2CaSiO3

Solution:

Extraction of iron is based on the reduction of Haematite Fe2O3 with carbon.

In reduction zone following reactions took place:

Fe2O3+CO2Feo+CO2

FeO+COFe+CO2

In fusion Zone at higher temperature following reaction took place:

Fe2O3+3C2Fe+3CO

Reaction in slag formation:

CaO+SiO2CaSiO3
Hence option C and D are correct as this reaction doesn't took place in reduction zone.


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