STANDARDChemistry-Coordination Compounds
STANDARD Chemistry Stability of Complexes MCQ Question
Type: MCQ-conceptual-Medium-Class 12
Fe³⁺ compounds are more stable than Fe²⁺ compounds because
A
Fe³⁺ has smaller size than Fe²⁺
B
Fe³⁺ has 3d⁵ configuration (half-filled)
C
Fe³⁺ has higher oxidation state
D
Fe³⁺ is paramagnetic in nature.
Correct Answer
Option B
Detailed Explanation
3d⁵ configuration is more stable due to singly occupied half-filled orbitals.
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