Question

Mn2+ is more stable than Mn3+ due to the stable electronic configuration ofMn2+ because of half filled d-orbital. Fe3+ is more stable than Fe2+ because Fe3+ has exactly half filled d- orbitals which give the stability to Fe3+ while Fe2+ has 3d6 electronic configuration​

Answer 1

Explanation:

Since Mn2+ has stable half filled electronic configuration, therefore Mn2+ compounds are more stable than Fe2+ towards oxidation to their +3 state. Fe2+(3d6) can lose one electron easily to give Fe3+(3d5, stable configuration).

Answer 2

Answer:

Correct answer

Explanation:

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