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Which of the following has the maximum n...

Which of the following has the maximum number of unpaired d-electron?

A

Zn

B

`Fe^(2+)`

C

`Ni^(3+)`

D

`Cu^(+)`

Text Solution

Verified by Experts

The correct Answer is:
B
`Fe^(+2)-3d^(6)4s^(0)-4` unpaired `e^(-).`
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