Question

# Which of the following statements are correct regarding metallurgy of iron?

A
Coke reduces FeO to Fe above 710C
B
CO reduces Fe2O3 to Fe below 710C
C
Coke reduces Fe2O3 to FeO below 710C
D
CO reduces Fe2O3 to FeO above 710C

Solution

## The correct options are B Coke reduces $$FeO$$ to $$Fe$$ above 710$$^{\circ}$$C C CO reduces $$Fe_2O_3$$ to $$Fe$$ below 710$$^{\circ}$$CCoke reduces $$FeO$$ to $$Fe$$ above 710$$^{\circ}\ C$$.$$FeO+C \rightarrow Fe+ CO$$In the blast furnace, it is so hot that carbon monoxide can be used to reduce the iron oxide in place of carbon at below 710$$^{\circ}\ C$$.$$Fe_2O_3 + 3CO \rightarrow 2Fe + 3CO_2$$Hence options A &  B are correct.Chemistry

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