Among the following complexes, the one which shows zero crystal field stabilization energy (CFSE) is

Options

A. `[Mn(H_2 O)_6]^(3+)`
B. `[Fe(H_2O)_6]^(3+)`
C. `[Co(H_2 O)_6]^(2+)`
D. `[Co(H_2 O)_6]^(3+)`

Answer

B

Explanation

Due to `d^5` configuration CFSE is zero.