Which one of the following transition metal ions shows magnetic moment of 5.92 BM?

Options

A. `Mn^(2+)`
B. `Ti^(3+)`
C. `Cr^(3+)`
D. `Cu^(2+)`

Answer

A

Explanation

Given magnetic moment of transition metal
`=sqrt(n(n+2))=5.92`
i.e., n=5
Number of unpaired electrons in `Mn^(2+)=5`
Number of unpaired electrons in `Ti^(3+)=1`
Number of unpaired electrons in `Cr^(3+)=3`
Number of unpaired electrons in `Cu^(2+)=1`
Number of unpaired electrons in `Co^(2+)=3`
Thus `Mn^(2+)` have magnetic moment`=5.92BM`