1.

Which of the following reaction in the blast furnace is / are endothermic ?

Answer»

`C(s)+O_(2)(g) hArr CO_(2)(g)`
`CO_(2)(g)+C(s) hArr 2CO(g)`
`CaCO_(3)(s) hArr CAO(s)+CO_(2)(g)`
`Fe_(2)O_(3)(s)+3CO(g) hArr 2Fe(l)+3CO_(2)(g)`

Answer :B::C


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