Which of the following ions show higher ...

Which of the following ions show higher spin only magnetic moment values ?

`Ti^(3+)`

`Mn^(2+)`

`Fe^(2+)`

`Co^(2+)`

Text Solution

Verified by Experts

Spin only magnetic moment is given by, `sqrt(n)(n+2)`B.M. where n is the number of unpaired electrons present in central metal ion.
Magnetic moments for all elements:
`Mn^(2+)=sqrt(5(5+2))=5.91B.M. `
`Fe^(2+)=sqrt(4(4+2))=4.89` B.M
`Ti^(3+)=sqrt(1(1+2))=1.73 B.M`
`CO^(3+)=sqrt(3(3+2))=3.87 B.M.`
Greater the value of n, greater the magnetic moment. So `Mn^(2+)` has the highest magnetic moment.

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Which ion has the highest spin magnetic moment value ?

`[Cr(H_(2)O)_(6)]^(3+)`

`[Fe(H_(2)O)_(6)]^(2+)`

`[Zn(H_(2)O)_(6)]^(2+)`

`[Co(NH_(3))_(6)]^(3+)`

Which of the following pairs will show the same magnetic moment ('spin only')?

`[Cr(H_(2)O)_(6)]^(3+)" and "[Fe(H_(2)O)_(5)NO]^(2+)`

`[Mn(CN)_(6)]^(4-)" and "[Fe(CN)_(6)]^(3-)`

`[Ni(CO)_(4)]" and "[Zn(NH_(3))_(4)]^(2+)`

All of these

Which of the following pairs will show the same magnetic moment ('spin only') ?

`[Cr(H_(2)O)_(6)](3+) amd [Fe(H_(2)O)_(5)NO]^(2+)`

`[Mn(CN)_(6)]^(4-) and [Fe(CN)_(6)]^(2+)`

`[Ni(CO)_(4)] and [Zn(NH_(3))_(4)]^(2+)`