COMEDK · Chemistry · 21. General Principles and Processes of Isolation of Metals
Which of the following reaction taking place in the blast furnace is endothermic?
- A \(\mathrm{CaCO}_{3} \longrightarrow \mathrm{CaO}+\mathrm{CO}_{2}\)
- B \(2 \mathrm{C}+\mathrm{O}_{2} \longrightarrow 2 \mathrm{CO}\)
- C \(\mathrm{C}+\mathrm{O}_{2} \longrightarrow \mathrm{CO}_{2}\)
- D \(\mathrm{Fe}_{2} \mathrm{O}_{3}+3 \mathrm{CO} \longrightarrow 2 \mathrm{Fe}+3 \mathrm{CO}_{2}\)
Answer & Solution
Correct Answer
(A) \(\mathrm{CaCO}_{3} \longrightarrow \mathrm{CaO}+\mathrm{CO}_{2}\)
Step-by-step Solution
Detailed explanation
Decomposition of calcium carbonate to form calcium oxide and carbondioxide is endothermic reaction. \[ \mathrm{CaCO}_{3} \longrightarrow \mathrm{CaO}+\mathrm{CO}_{2} \]
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