InterviewSolution
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InterviewSolution
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Which of the following species is expected ot show the highest magnetic moment? (At.Nos.: `Cr = 24, Mn = 25, Co = 27, Ni = 28, Cu = 29`)A. `Cr^(2+)`B. `Cu^(2+)`C. `Mn^(2+)`D. `Co^(2+)` |
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Answer» Correct Answer - C Highest magnetic moment depends upon number of uparied electron since `Cr^(2) = 3 d^(4) 4 s^(0), Mn^(2 +) = 3 d^(5) 4 s^(0)` `Cu^(2 +) = 3 d^(9) 4 s^(0), Co^(2 +) = 3 d^(7) 4 s^(0), Ni^(2 +) = 3d^(6) 4 s^(0)` So `Mn^(2 +)` contain maximum number of unparied electron i.e., 5. |
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