Among the reactions (A) - (D), the reaction(s) that does/do not occur in the blast furnace during the extraction of iron is/are:
$(A) C a O + S i O_{2} \to C a S i O_{3}$
$(B) 3 F e_{2} O_{3} + C O \to 2 F e_{3} O_{4} + C O_{2}$
$(C) F e O + S i O_{2} \to F e S i O_{3}$
$(D) F e O \to F e + \frac{1}{2} O_{2}$

A

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D

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C

and

D

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A

and

D

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Solution

The correct option is C $C$ and $D$
In the metallurgy of iron, $C a O$ is used as flux to remove the impurities of $S i O_{2}$ .
$C a O + S i O_{2} \to C a S i O_{3} .$

Also here $F e_{2} O_{3}$ is reduced by $C O$ to $F e_{3} O_{4}$ which is further reduced to $F e O$ which is further reduced to $F e$ .
$3 F e_{2} O_{3} + C O \to 2 F e_{3} O_{4} + C O_{2}$
$F e_{3} O_{4} + C O \to 3 F e O + C O_{2}$
$F e O + C O \to F e + C O_{2}$

Suggest Corrections

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