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Wht will be the theoretical value of mag...

Wht will be the theoretical value of magnetic moment `(mu)` when `CN^(-)` ligands join `Fe^(3+)` ion to yield complex

A

3.87 BM

B

2.83 BM

C

1.73 BM

D

5.92 BM

Text Solution

Verified by Experts

The correct Answer is:
C
`Fe^(3+)` =
`CN^(-)` is a strong ligand. Therefore pairing of will takes place.
`therefore`
one unpaired electron is left.
`mu=sqrt(n(n+2))`
`=sqrt((1)(1+2))=sqrt(3)=1.738` B.M
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