Which of the following reactions taking place in the blast furnace during extraction of iron is endothermic?

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

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

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

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

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Solution

The correct option is B $C a C O_{3} \to C a O + C O_{2}$
In this portion, limestone gets decomposed and the resultant lime (CaO) acts as flux, combines with silica (present as impurity - gangue) to form calcium silicate (fusible slag). The reaction is endothermic as heat is required to break chemical bonds in the compound undergoing decomposition.

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

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

Suggest Corrections

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}

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

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

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

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

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