Which of the following reactions takes place at higher temperature range ( 900 K-1500K) in blast furnace?

3 F e_{2} O_{3} + C O \to 2 F e_{3} O_{4} + C O_{2}

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F e O + C O \to F e + C O_{2}

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F e_{3} O_{4} + 4 C O \to 3 F e + 4 C O_{2}

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F e_{2} O_{3} + C O \to 2 F e O + C O_{2}

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Solution

The correct option is B $F e O + C O \to F e + C O_{2}$
After concentration, mixture of oxide ores of iron ( $F e_{2} O_{3}, F e_{3} O_{4}$ ) is subjected to calcination/roasting to remove water, to decompose carbonates and to oxidise sulphides.
At 900 – 1500 K (higher temperature range in the blast furnace):
$C + C O_{2} \to 2 C O$
$F e O + C O \to F e + C O_{2}$
Hence, option $B$ is the right answer.

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Similar questions

(A) C a O + S i O_{2} \to C a S i O_{3}

(B) 3 F e_{2} O_{3} + C O \to 2 F e_{3} O_{4} + C O_{2}

(C) F e O + S i O_{2} \to F e S i O_{3}

(D) F e O \to F e + \frac{1}{2} O_{2}

C O + F e_{3} O_{4} \to F e O + C O_{2}

Fe2O3+CO=FE+CO2 balance

(F e_{3} O_{4})

F e_{3} O_{4} + 4 C O \to 3 F e + 4 C O_{2}

F e_{3} O_{4}

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