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MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Inorganic ChemistryMetallurgyPrevious Year Questions

The following reactions take place in the blast furnace in the preparation of impure iron. Identify the reaction pertaining to the formation of the slag. (AIPMT 2011)

A.Fe2O3(s) + 3CO(g) → 2Fe(l) + 3CO2(g)
B.CaCO3(s) → CaO(s) + CO2(g)
C.CaO(s) + SiO2(s) → CaSiO3(s)✓ Correct
D.2C(s) + O2(g) → 2CO(g)
Explanation

Slag is formed by the reaction CaO + SiO2 CaSiO3

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