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The reaction (s) which does (do) not occur in the reduction zone in the extraction of iron from haematite ore is (are)

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The reaction (s) which does (do) not occur in the reduction zone in the extraction of iron from haematite ore is (are)
A. `Fe_2O_3+COto2FeO+CO_2`
B. `FeO+COtoFe+CO_2`
C. `Fe_2O_3+3C to 2Fe+3CO`
D. `CaO+SIO_2toCaSiO_3`
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Correct Answer - C,D
It occurs in fusion zone at higher tempt. With `Fe_2O_3` which escapes reduction zone. It occurs in slag formation zone
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