Match the metal ions given in Column I with the spin magnetic moments of the ions given in Column II and assign the correct code :

Options

A. (A) `{:(a,b,c,d),(iv,i,ii,iii):}`
B. (B) `{:(a,b,c,d),(i,ii, iii, iv ):}`
C. (C) `{:(a,b,c,d),(iv, v, ii, i ):}`
D. (D) `{:(a,b,c,d),(iii, v,i, ii):}`

Answer

C

Explanation

`Co^(3+)=[Ar]3d^(6)` , Unpaired `e^(-)(n)=4`
Spin magnetic moment `=sqrt(4(4+2))=sqrt(24)` BM
Spin magnetic moment =`sqrt(3(3+2))=sqrt(15)` Bm
`Fe^(3+)=[Ar]3d^(5), ` Unpaired `e^(-)(n)=5`
Spin magnetic moment `=5sqrt((5+2))=sqrt(35)` BM
`Ni^(2+)=[Ar] 3d^(8)`, Unpaired `e^(-n)=2`
Spin magnetic moment `=sqrt(2(2+2))=sqrt(8)` BM