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Select the correct statement regarding extraction of iron from mixture of its oxide and carbonate ores.

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Roasted mixture of ores mainly contain $FeO$ .

Most of iron is obtained by reduction of its oxide by CO gas at very high temperature of $1800 ° C$

Reduction of ${Fe}_{2} O_{3}$ into Fe follows the sequence

${Fe}_{2} O_{3} ⟶ {Fe}_{3} O_{4} ⟶ FeO ⟶ Fe$

Coke powder is the reducing agent at lower temperature range $(300 - 800^{\circ} C)$

answer is C.

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Detailed Solution

The process thermodynamic study suggested that temperature-programmed reduction of the oxide should take place in three steps, i.e.,

${Fe}_{2} O_{3} \to {Fe}_{3} O_{4} \to FeO \to Fe$

Hence, option C is correct.

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