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Q.

Role of limestone used in Fe extraction

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a

Oxidation of Fe ore

b

Purification of Fe formed

c

Formation of slag

d

Reduction of Fe ore

answer is C.

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Detailed Solution

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 Limestone( CaCO3) is used in Fe extraction to form slag.

CaCO3 → CaO + CO2↑

Limestone

CaO +SiO2 → CaSiO3

                          slag

Hence, option (C) is correct.

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