Chemistry - Metallurgy Question with Solution | TestHub

ChemistryMetallurgyEllingham diagram & Reduction methods, Refining of metalMedium2 minQB
ChemistryMediumstatement

Given below are two statements :

Statement I :  According to the Ellingham diagram, any metal oxide with higher  G° is more stable than the one with lower  G°.

Statement II :  The metal involved in the formation of oxide placed lower in the Ellingham diagram can reduce the oxide of a metal placed higher in the diagram.

In the light of the above statements, choose the most appropriate answer from the options given below :

Options:

Answer:
D
Solution:

Statement I is incorrect because a more negative indicates greater stability for a metal oxide. Statement II is correct as a metal lower in the Ellingham diagram (more negative for its oxide formation) has a stronger affinity for oxygen and can reduce oxides of metals higher up.

Stream:JEESubject:ChemistryTopic:MetallurgySubtopic:Ellingham diagram & Reduction methods, Refining of metal
⏱ 2mℹ️ Source: QB

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