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प्रश्न
Which among the following reactions occurs at zone of slag formation in the process of extraction of iron by blast furnace?
पर्याय
\[\ce{12CaO + 2Al2O3 -> 4Ca3AlO3 + 3O2}\]
\[\ce{C + 1/2 O2 + CO}\]
\[\ce{Fe2O3 + 3CO -> 2Fe + 3CO2}\]
\[\ce{2CO -> O2 + 2C}\]
MCQ
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उत्तर
\[\ce{12CaO + 2Al2O3 -> 4Ca3AlO3 + 3O2}\]
Explanation:
CaO combines with gangue to form molten slag of calcium silicate and calcium aluminate.
\[\ce{CaO + SiO2 -> CaSiO3}\]
\[\ce{12CaO + 2Al2O3 -> 4Ca3AlO3 + 3O2}\]
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