Select the incorrect statement about Ellingham diagram.

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All oxides theoretically can not be decomposed to give the metal and O₂, at sufficiently high temperature.

At high temperature, a point will be reached where the graph crosses the $Δ_{f} G^{Θ}$ line. Below this temperature, $Δ_{f} G^{Θ}$ of the oxides is negative, so the oxide is stable.

According to Ellingham diagram, Aluminium will reduce MgO at temperature below 1350^oC.

Any metal will not reduce the oxide of other metals which lie above it in the Ellingham diagram.

answer is C.

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Detailed Solution

All oxides, theoretically, cannot be decomposed to give the metal and O₂ if a sufficiently high temperature is not attained. Any metal will reduce the oxide of other metals which lie above it in the Ellingham diagram.

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