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General Principles and processes of Isolation of Elements
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Among the reactions $(a) - (d)$, the reaction(s) that does/do not occur in the blast furnace during the extraction of iron is/are
$(a)$ $\mathrm{CaO}+\mathrm{SiO}_{2} \rightarrow \mathrm{CaSiO}_{3}$
$(b) $ $3 \mathrm{Fe}_{2} \mathrm{O}_{3}+\mathrm{CO} \rightarrow 2 \mathrm{Fe}_{3} \mathrm{O}_{4}+\mathrm{CO}_{2}$
$(c)$ $\mathrm{FeO}+\mathrm{SiO}_{2} \rightarrow \mathrm{FeSiO}_{3}$
$(d)$ $\mathrm{FeO} \rightarrow \mathrm{Fe}+\frac{1}{2} \mathrm{O}_{2}$
A
$(c)$ and $(d)$
B
$(a)$ and $(d)$
C
$(d)$
D
$(a)$
(JEE MAIN-2020)
Solution
In blast furnace (metallugy of iron) involved reactions are
$\mathrm{CaO}+\mathrm{SiO}_{2} \longrightarrow \mathrm{CaSiO}_{3}$
$3 \mathrm{Fe}_{2} \mathrm{O}_{3}+\mathrm{CO} \longrightarrow 2 \mathrm{Fe}_{3} \mathrm{O}_{4}+\mathrm{CO}_{2}$
Standard 12
Chemistry
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