Why Does Cr2+ Reduce While Mn3+ Oxidizes Despite Both Having d4 Configuration?

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SUMMARY

Cr2+ acts as a reducing agent while Mn3+ serves as an oxidizing agent, despite both ions possessing a d4 electron configuration. The oxidation state and the specific electronic structure of the ions play a crucial role in their reactivity. In this case, the stability of the resulting oxidation states and the energy considerations of the electron configurations dictate the behavior of these ions in redox reactions.

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Why is Cr2+ reducing while Mn3+ oxidizing when they both have d4 configuration?
 
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d4 is not the driving force behind oxidation and/or reduction.
 

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