Amongst the ion of 3d transition series paramagnetic character increas – InterviewSolution

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1.	Amongst the ion of 3d transition series paramagnetic character increases from `Ti^(2+)` toA. `Cr^(+2)`B. `Mn^(+2)`C. `Ni^(+2)`D. `Fe^(+2)`
Answer» 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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