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The pair of ions having same electronic ...

The pair of ions having same electronic configuration is__________.

A

`Cr^(3+), Fe^(3+)`

B

`Fe^(3+), Mn^(2+)`

C

`Fe^(3+), Co^(3+)`

D

`Sc^(3+), Cr^(3+)`

Text Solution

Verified by Experts

The correct Answer is:
B
`Cr^(3+) : [Ar] 3d^3, Fe^(3+) : [Ar]3d^5 , Mn^(2+) , [Ar] 3d^5`.
Thus, `Mn^(2+) and Fe^(3+)` have same electronic configuration.
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