Question:
Why Are Mn2+ compounds more stable than Fe2+ towards oxidation to their +3 state ?
Answer:
Mn2+ (3d5) more stable than Fe2+ (3d6) due to half filled configuration of Mn2+ - 3d5
Whereas Fe2+ (3d6) loses one more electron i.e oxidises to form Fe3+ (3d5) i.e half filled configuration.
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