Which of the following reactions taking ...

Which of the following reactions taking place in the blast furnace during extraction ofiron is endothermic?

A

`CaCO_3 rarr CaO + CO_2`

B

`2C + O_2 rarr 2CO`

C

`C+O_2 rarr CO_2`

D

`Fe_2O_3 + 3CO rarr 2Fe + 3CO_2`

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The correct Answer is:

A

`CaCO_3 rarr CaO + CO_2`

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