Amongst the ion of 3d transition series paramagnetic character increases from `Ti^(2+)` to
Amongst the ion of 3d transition series paramagnetic character increases from `Ti^(2+)` to
A. `Cr^(+2)`
B. `Mn^(+2)`
C. `Ni^(+2)`
D. `Fe^(+2)`
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Correct Answer - B
`Cr^(2+) to [Ar] 4s^0 3d^3 , Ni^(2+) to [Ar] 4s^0 3d^8`, `Fe^(2+) to [Ar] 4s^0 3d^6 , Mn^(2+) to [Ar] 4s^0 3d^5`
No. of unpaired `e^-` increases from `Fe^(2+)` (1) to `Cr^(3+)` (3), `Ni^(2+)` (3) to `Mn^(2+)` (5)
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