InterviewSolution
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InterviewSolution
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Which of the following ions exhibits d-d transitions and paramagnetism as well?A. `MnO_(4)^(-)`B. `Cr_(2)O_(7)^(2-)`C. `CrO_(4)^(2-)`D. `MnO_(4)^(2-)` |
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Answer» Correct Answer - D `CrO_(4)^(2-) implies Cr^(6+)=[Ar]` Unpaired electron (n)=0, Diamagnetic `Cr_(2)O_(7)^(2-) implies Cr^(6+)=[Ar]` Unpaired electron (n)=0, Diamagnetic `MnO_(4)^(2-)=Mn^(6+)=[Ar]3d^(1)` Unpaired electron (n)=1, Paramagnetic `MnO_(4)^(-)=Mn^(7+)=[Ar]` Unpaired electron (n)=0, Diamagnetic |
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