InterviewSolution
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InterviewSolution
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Which of the following orders is incorrect for the properties indicated against each ?A. `[Cr(NH_(3))_(6)]^(3+) gt [Mn(CN)_(6)]^(3-) gt [V(CO)_(6)]" "-` magnetic moment (spin only values in B.M.)B. `[Co(CN)_(6)]^(3-) gt [Co(NH_(3))_(6)]^(3+) gt [Co(H_(2)O)_(6)]^(3+)" "-Delta_(0)` valuesC. `[Ni(CO)_(4)] gt [Co(CO)_(4)]^(-) gt [Fe(CO)_(4)]^(2-)" "-` strength of `M-Cpi` bond.D. `[Fe(CN)_(6)]^(3-) lt [Co(CN)_(6)]^(4-) lt [Ni(NH_(3))_(6)]^(2+)" "-` effective atomic number of metal ion. |
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Answer» Correct Answer - C `(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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