Select the correct order of magnetic moment (in BM) from the following options: I. MnCl42−  II. CoCl42  III. Fe(CN)64−

MnCl42−:P>Δt; d5-system  (weak field ligand) (n=5)μeff=5.9BMCoCl42−:P>Δt; d7-system  (weak field liganld) (n=3)μeff=3.89BMFe(CN)64:P<Δ0; d6-system  (strong field ligand) (n=0)μeff=0BM