Write a non-exothermic reaction taking place in the blast furnace during
extraction of iron

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Solution

The non-exothermic or endothermic reactions in the blast furnace are:
Reaction of carbondioxide with carbon to form carbonmonooxide.
C + CO₂ => 2CO
Reduction of ferric oxide with carbon
Fe₂O₃ + 3CO => 2Fe + 3CO₂
Thermal decomposition of calcium carbonate into calcium oxide and carbondioxide
CaCO₃ => CaO + CO₂.

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Write down the reactions taking place in blast furnace related to the metallurgy of iron in the temperature range 500-800 K.

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