Which of the following orders is incorrect for the properties indicate

1.	Which of the following orders is incorrect for the properties indicated against each ?
Answer» `[Cr(NH_(3))_(6)]^(3+) gt [Mn(CN)_(6)]^(3-) gt [V(CO)_(6)]""-` magnetic moment (spin only values in B.M.) `[Co(CN)_(6)]^(3-) gt [Co(NH_(3))_(6)]^(3+) gt [Co(H_(2)O)_(6)]^(3+)""-Delta_(0)` values `[Ni(CO)_(4)] gt [Co(CO)_(4)]^(-) gt [FE(CO)_(4)]^(2-)""-` strength of `M-Cpi` BOND. `[Fe(CN)_(6)]^(3-) lt [Co(CN)_(6)]^(4-) lt [Ni(NH_(3))_(6)]^(2+)""-` effective atomic number of metal ion. Solution :`(1)Cr^(3+)-3d^(3)` configuration `(t_(2g)^(1,1,1).e_(g)^(0,0)),Mn^(3+)-3d^(4)` configuration `(t_(2g)^(2,1,1).e_(g)^(0,0)),(V)-3d^(5)` configuration `(t_(2g)^(2,2,1).e_(g)^(0,0))` `(2)Delta_(0)prop` strength of ligand for same oxidation state of central meta. `(3)` In carbonylate anion, the metal has a GREATER electron density to be dispersed, with the RESULT that `M-Cpi` `(4)``[Fe^(III)(CN)_(6)]^(3-),EAN=23+12=35` `[Co^(II)(CN)_(6)]^(4-),EAN=25+12=37` `[Ni(NH_(3))_(6)]^(2-),EAN=26+12=38`

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