The following reactions take place in the blast furnace in the preparation of impure iron. Identify the reaction pertaining to the formation of the slag.

{F e}_{2} O_{3} (s) + 3 C O (g) ⟶ 2 F e (l) + 3 C O_{2} (g)

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C a C O_{3} (s) ⟶ C a O (s) + C O_{2} (g)

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C a O (s) + S i O_{2} (s) ⟶ C a S i O_{3} (s)

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2 C (s) + O_{2} (g) ⟶ 2 C O (g)

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Solution

The correct option is D $C a O (s) + S i O_{2} (s) ⟶ C a S i O_{3} (s)$
In the blast furnace, during the preparation of impure iron, slag is obtained by the reaction of $C a O$ with silica.

Slag can be defined as a fusible mass, which is obtained when a flux reacts with an infusible acidic or basic impurity present in the oxide ore.

$C a O (s)$ (basic flux) $+ S i O_{2} (s)$ (acidic flux) $⟶ C a S i O_{3} (s)$ (slag)

Hence, the correct option is $C$

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Similar questions

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}

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}

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

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

F e_{2} O_{3} (s) + 3 C O (g) ⇌ 2 F e (l) + 3 C O_{2} (g)

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