In the extraction of iron. the reaction which occurs at $900-$ 1500 K in blast furnace is

In the extraction of iron. the reaction which occurs at $900-$ 1500 K in blast furnace is
  1. $\mathrm{Fe}_2 \mathrm{O}_3+3 \mathrm{C} \rightarrow 2 \mathrm{Fe}+3 \mathrm{CO}$
  2. $\mathrm{FeO}+\mathrm{CO} \rightarrow \mathrm{Fe}+\mathrm{CO}_2$
  3. $3 \mathrm{Fe}_2 \mathrm{O}_3+\mathrm{CO} \rightarrow 2 \mathrm{Fe}_3 \mathrm{O}_4+\mathrm{CO}_2$
  4. $\mathrm{Fe}_3 \mathrm{O}_4+4 \mathrm{CO} \rightarrow 3 \mathrm{Fe}+4 \mathrm{CO}_2$

Solution

In the blast furnace reduction of iron oxides take place at different temperature ranges. $\begin{aligned} & \mathrm{At} 900-500 \mathrm{~K} \\ & \mathrm{FeO}+\mathrm{CO} \longrightarrow \mathrm{Fe}+\mathrm{CO}_2 \\ & \mathrm{C}+\mathrm{CO}_2 \longrightarrow 2 \mathrm{CO} \\ & \mathrm{CaO}+\mathrm{SiO}_2 \longrightarrow \mathrm{CaSiO}_3 \text { (slag) } \end{aligned}$

Asked in: AP EAMCET 2024 (23 May Shift 1)

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