Correct order of magnetic moment of
[Ni(CO)4], [CoF6]–3 , [FeF6]–3 , [Cr(H2O6)]+3
(1) [FeF6]–3 > (CoF6)–3 > [Cr(H2O6)]+3 > [Ni(CO)4]
(2) [FeF6]–3 > [Ni(CO)4] > [Cr(H2O6)]+3 > [CoF6]–3
(3) [CoF6]–3 > [FeF6]–3 > [Ni(CO)4] > [Cr(H2O6)]+3
(4) [CoF6]–3 > [Ni(CO)4] > [Cr(H2O6)]+3 > [FeF6]–3
