The ion pair of the following in which both the ions have unpaired electron-
A. `Cr^(3+),Co^(2+)`
B. `Sc^(3+),Cr^(3+)`
C. `Cu^(+),Fe^(3+)`
D. `Mn^(2+),Cu^(+)`

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1 Answers

Correct Answer - A
`Cr^(+3)=4s^(@)3d^(3)`
`Co^(+2)=4s^(s)3d^(5)`

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