The isoelectronic pair of ions is -

Options

A. `Sc^(2+)` and `V^(3+)`
B. `Mn^(2+)` and `Fe^(3+)`
C. `Mn^(3+)` and `Fe^(2+)`
D. `Ni^(3+)` and `Fe^(2+)`

Answer

B

Explanation

`Mn^(+2)=23e^(-)`
`Fe^(+3)=23e^(-)`