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Amongst the following ions, which one has the highest magnetic moment [Cr(H_(2)O)_(6)]^(3+)[Fe(H_(2)O)_(6)]^(2+) (iii) [Zn(H_(2)O)_(6)]^(2+) |
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Answer» Solution :The oxidation state are: Cr(lll), Fe (II)and `Zn (II)` `E.C. of Cr^(3+) = 3d^(3)`, unpaired electrons =3 (inner orbital complex) `E. C. of Fe^(2+) = 3d^(6)`unpaired electrons = 4 (OUTER orbital:/high SPIN complex) ` E.C. of Zn^(2+) = 3d^(10)`, unpaired electrons = 0 (outer orbital complex) `MU= sqrt(n(n+2))` Hence (ii) has highest magnetic moment. |
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