1.

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`

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`


Discussion

No Comment Found

Related InterviewSolutions