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The spin-only magnetic moment of [Fe(NH(...

The spin-only magnetic moment of `[Fe(NH_(3))_(6)]^(3+) and [FeF_(6)]^(3-)` (in units of BM ) respectively are

A

1.73 and 1.73

B

5.92 and 1.73

C

1.73 and 5.92

D

5.92 and 5.92

Text Solution

Verified by Experts

The correct Answer is:
C
Fe^(3+) = 3d^(5)

`overset(Ө)(F)` is WFL so `mu` = 5.92While `NH_3` is SFL & pairing of electrons takes place so `mu = 1.73 `
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