The correct statement about the magnetic properties of `[Fe(CN)_6]^(3-)` and `[FeF_6]^(3-)` is : `(Z = 26)`

Options

A. both are paramagnetic
B. both are diamagnetic
C. `[Fe(CN)_6]^(3-)` is diamagnetic, `[FeF_6]^(3-)` is paramagnetic
D. `[Fe(CN)_6]^(3-)` is paramagnetic, `[FeF_6]^(3-)` is diamagnetic.

Answer

A

Explanation

`ln [Fe(CN)_6]^(3-) and [FeF_6]^(3-)` the electronic configration of `Fe^(3+)` is

In both complexes unpaired electrons are present. Thus, both complexes are paramagnetic.