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Correct order of paramagnetism of tripositive cation of Cr, Mn, Fe, Co is :A. `Crlt Mn lt Felt Co`B. `Crlt Mn = Felt Co`C. `Cr = Fe lt Mn lt Co`D. `Cr lt Mn = Co lt Fe` |
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Answer» Correct Answer - D No. of unpaired electron `{:(Cr^(+3),=,[Ar]4s3d3d^(3),rarr,3,),(Mn^(+3),=,[Ar]3d^(4)4s^(0),rarr,4,),(Fe^(+3),=,[Ar]3d^(5)4s^(0),rarr,5,),(Co^(+3),=,[Ar]3d^(6)4s^(0),rarr,4,):}` `Cr^(+3) lt Mn^(+3) -= Co^(+3) lt Fe^(+3)` `Cr lt Mn = Co lt Fe` |
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