Fe 3+ ion is more stable than Fe 2+ ion because
Chemistry · Class 12 · CBSE — The d- and f-Block Elements
Fe3+ ion is more stable than Fe2+ ion because
- more the charge on the atom, more is its stability
- configuration of Fe2+ is 3d6 while Fe3+ is 3d5
- Fe2+ has a larger size than Fe3+
- Fe3+ ions are coloured hence more stable.
Answer
(B) configuration of Fe 2+ is 3 d 6 while Fe 3+ is 3 d 5
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