Which of the following reactions is not taking place in Blast furnace during metallurgy of iron between the temperature range of 500-800 K?

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

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

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Solution

The correct option is A $F e O + C O \to F e + C O_{2}$
After concentration, the 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.
Various reactions involved in Blast furnace are at 500-800 K are-
$F e_{2} O_{3}$ is first reduced to $F e_{3} O_{4}$ and then to FeO
$3 F e_{2} O_{3} + C O \to 2 F e_{3} O_{4} + C O_{2}$
$F e_{3} O_{4} + 4 C O \to 2 F e + 4 C O_{2}$
$F e_{2} O_{3} + C O \to 2 F e O + C O_{2}$

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Similar questions

Write down the reactions taking place in blast furnace related to the metallurgy of iron in the temperature range 500-800 K.

(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}

(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}

500 - 800 K

C + O_{2} \to C O_{2}

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

C a C O_{3} \to C a O + C O_{2}

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

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

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