Saved Bookmarks
| 1. |
Amongst the following ions, which one has the highest magnetic moment value ? (i) [Cr(H_(2)O)_(6)]^(3+) (ii) [Fe(H_(2)O)_(6)]^(2+) (iii) [Zn(H_(2)O)_(6)]^(2+) |
|
Answer» Solution :The oxidation STATES in the three complex ions are : CR(III), Fe(II) and Zn(II) Electronic CONFIGURATION of `Cr^(3+) : 3d^(3)`, Number of unpaired electrons = 3 (inner orbital complex) Electronic configuration of `Fe^(2+) : 3d^(6)`, Number of unpaired electrons= 4 (outer orbital/high SPIN complex) Electronic configuration of `Zn^(2+) : 3d^(10)`, Number of unpaired electrons= 0 (outer orbital complex) `mu=sqrt(n(n+2))` Hence, (ii) having greatest value of n has highest magnetic moment. |
|