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CGP EDU Academic Team
Published on: August 13, 2026
The highest number of unpaired elelctrons are in :
Text Solution
Verified by ExpertsThe correct answer is:
C
Valence shell electron configuration of 26 Fe is 3d 6 4s 2 .
Valence shell electron configuration of 26 Fe 2+ is 3d 6 4s 0 .
Valence shell electron configuration of 26 Fe 3+ is 3d 5 4s 0 . or 
Therefore, Fe 3+ contains maximum number of unpaired electrons equal to 5.
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