Q.
Which of the following reaction taking place in the blast furnace during extraction of iron is endothermic?
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a
CaCO3→CaO+CO2
b
2C+O2→2CO
c
C+O2→CO2
d
Fe2O3+3CO→2Fe+3CO2
answer is A.
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Detailed Solution
Calcium carbonate needs to be heated to convert into CaO and CO2
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