Department of Pre-University Education, KarnatakaPUC Karnataka Science Class 12
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What is the Role of Limestone in the Extraction of Iron from Its Oxides? - Chemistry

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What is the role of limestone in the extraction of iron from its oxides?

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Solution

Limestone decomposes to form CaO which reacts with silicate impurity in the blast furnace to form slag.

CaCO3 → CaO + CO2

CaO + SiO2 → CaSiO3 (slag)

Concept: Occurrence of Metals
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