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Choose the correctly paired gaseous cati...

Choose the correctly paired gaseous cation and its magnetic (spin only) moment (in BM) -

A

`Ti^(2+), 3.87 BM`

B

`Cr^(2+), 4.90 BM`

C

`Co^(3+), 3.87 BM`

D

`Mn^(2+), 4.90 BM`

Text Solution

Verified by Experts

The correct Answer is:
B
Using expression, `mu = sqrt(n(n+2))BM` (where, n = no. of unpaired electrons)
`{:("Iron","Outer Configuration",n,mu),(._(22)Ti^(2+),3d^(2),2,2.84),(._(24)Cr^(2+),3d^(4),4,4.90),(._(27)Co^(3+),3d^(6),4,4.90),(._(25)Mn^(2+),3d^(5),5,5.92):}`
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