Co-Ordination Compounds Question 150

Question: What is the magnetic moment of $ K_3

[FeF_6] $ [Orissa JEE 2005]

Options:

A) 5.91 BM

B) 4.89 BM

C) 3.87 BM

D) 6.92 BM

Show Answer

Answer:

Correct Answer: A

Solution:

K3[FeF6]

Fe3+=[Ar]3d54s0 Number of unpaired electrons = 5 Magnetic moment =n(n+2)=5(5+2)

=35 = 5.91 BM.



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