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Why is the Evalue for the Mn* /Mncouple much more positive than that for Cr**/Cr? or Fe**/Fe2'? Explain. |
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Answer» ONG>ANSWER: The E° value for the Mn3+/Mn2+ couple much more POSITIVE than that for Cr3+/Cr2+ or Fe3+/Fe2+. Much more third ionisation energy of Mn (where the required change is d5 to d4) is mainly responsible for this. This also explains why the +3 state of Mn is of little importance. I HOPE that this answer will help you |
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