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  4. In blast furnace iron oxide is reduced by

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Q. In blast furnace iron oxide is reduced by

KCETKCET 2005General Principles and Processes of Isolation of Elements

Solution:

In the blast furnace iron oxide is reduced as

$3 Fe _{2} O _{3}+ CO \stackrel{300-400^{\circ} C }{\rightarrow} 2 Fe _{3} O _{4}+ CO _{2}$

$Fe _{3} O _{4}+ CO \stackrel{500-600^{\circ} C }{\rightarrow} 3 FeO + CO _{2}$

$FeO + CO \stackrel{700^{\circ} C }{\longrightarrow } Fe + CO _{2}$