`Fe^(3+)` compounds are more stable than `Fe^(2+)` compounds because

Options

A. `Fe^(3+)` has smaller size than `Fe^(2+)`
B. `Fe^(3+)` has `3d^5` configuration (half-filled)
C. `Fe^(3+)` has higher oxidation state
D. `Fe^(3+)` is paramagnertic in nature.

Answer

B

Explanation

`3d^5` configuration is more stable due to singly occupied half-filled orbitals.