According to the following diagram, which of the following option is correct?

Options

A. B can reduce `CO_(2)` above `800^(@)C`
B. C can reduce `AO_(2)` below `600^(@)C`
C. Both B and A can reduce CO2 above `400^(@)C`
D. A can reduce both `BO_(2)` and `CO_(2)` below `600^(@)C`

Answer

D

Explanation

(i) `A+BO_(2)rarrAO_(2)+B," "Delta_("rxn")G^(@)`
(ii) `A+CO_(2)rarrC+AO_(2)," "Delta_("rxn")G^(@)`
Below `600^(@)C, Delta_("rxn")G^(@)` for both the reaction (i) and (ii) is negative.