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The magnetic moment of [CoF(6)]^(3-) by ...

The magnetic moment of `[CoF_(6)]^(3-)` by using CFT is

A

0

B

49

C

`5.9`

D

`1.73`

Text Solution

Verified by Experts

The correct Answer is:
B
`[CoF_(6)]^(3-)` i.e. `Co^(3+)`

Configuration of `Co^(3+) = 3d^(6) (or t_(2g)^(4) e_(g)^(2))`
Number of unpaired electrons (n) = 4
Magnetic moment `(mu) = sqrt(n(n+2)) = sqrt(4(4+2)) = sqrt(24) = 4.9 B M`
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