1.

Why is the Evalue for the Mn* /Mncouple much more positivethan that for Cr**/Cr? or Fe**/Fe2'? Explain.​

Answer»

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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