Select correct statements (s)

Options

A. When `FeCl_3` solution is added to `K_4 [Fe(CN)_6]` solution, in addition to `Fe^(III) [Fe^(II)(CN)_6 ]^(-) , Fe^(II) [Fe^(II)(CN)_6]^(-)` is also formed due to side redox reaction
B. When `FeCl_2` solution is added to `K_3 [Fe(CN)_6]` solution, in addition to `Fe^(II) [Fe^(III) (CN)_6 ] Fe^(III) [Fe^(II) (CN)_6]` is also formed due to side redox reaction
C. `Fe^(III) [Fe^(II)(CN)_6 ]^(-)` is paramagnetic while `Fe^(II) [Fe^(III) (CN)_6 ]^(-)` is diamagnetic
D. `Fe^(III) [Fe^(II) (CN)_6 ]^(-)` is diamagnetic while `Fe^(II) [Fe^(III) (CN)_6]^(-)` is paramagnetic

Answer

A, B, D

Explanation

When `FeCl_3` solution is added to `K_4 [Fe(CN)_6]` solution, in addition to `Fe^(III) [Fe^(II)(CN)_6 ]^(-) , Fe^(II) [Fe^(II)(CN)_6]^(-)` is also formed due to side redox reaction
When `FeCl_2` solution is added to `K_3 [Fe(CN)_6]` solution, in addition to `Fe^(II) [Fe^(III) (CN)_6 ] Fe^(III) [Fe^(II) (CN)_6]` is also formed due to side redox reaction
`Fe^(III) [Fe^(II) (CN)_6 ]^(-)` is diamagnetic while `Fe^(II) [Fe^(III) (CN)_6]^(-)` is paramagnetic