According to Ellingham diagram the oxidation reaction of carbon and carbon monoxide may be used to reduce which one of the following oxides at the lowest temperature?
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a
Al2O3
b
Cu2O
c
MgO
d
ZnO
answer is B.
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Detailed Solution
Because ΔGo for reductions of rest three oxides [Al2O3,ZnO and MgO] are less negative than that of Cu2O at lower temperature.