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MODEL PAPER 4 — Chemistry STD 12 Science — Question

Bihar BoardEnglish MediumSTD 12 ScienceChemistryMODEL PAPER 42 Marks
Question
Why are Fe2+ compounds easily oxidises to Fe3+ as compared to Mn+2 compounds.
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Answer

Mn2+ compounds are less readily converted to its +3 oxidation state (Mn3+) as compared to Fe2+ because Mn2+ (3d5) is more stable than Mn3+ (3d4) due to stable half filled d-orbital electronic configuration. Whereas Fe3+ (3d5) is more stable than Fe2+ (3d6) due to half filled d-orbitals therefore Fe2+ gets easily converted to Fe3+

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