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Explain why Fe^(3+) ion is more stable t...

Explain why `Fe^(3+)` ion is more stable than `Fe^(2+)` ion in aqueous solution.

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The electronic configuration of `Fe^(2+)` and `Fe^(3+)` are `3d^(6)` and `3d^(5)` repectively.
Here, the electronic configuration of `Fe^(3+)` is more stable (`3d-` orbitals are all half-filled).
Hence, `Fe^(3+)`.
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Knowledge Check

  • The Fe^2+ ion is:

    A
    Blue
    B
    Light green
    C
    Very dark green
    D
    Yellow

  • The Fe^2+ ion is:

    A
    Blue
    B
    Light green
    C
    Very dark green
    D
    Yellow

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