Select the incorrect statement about Ellingham diagram.

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

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 ΔfGΘ line. Below this temperature, ΔfGΘ of the oxides is negative, so the oxide is stable.

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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