Co-Ordination Compounds Question 257

Question: The correct statement about the magnetic properties of $ {{[Fe{{( CN )}_6}]}^{3-}} $ and $ {{[FeF_6]}^{3-}} $ is $ ( Z=26 ): $

Options:

A) both are paramagnetic.

B) both are diamagnetic.

C) $ {{[Fe{{( CN )}_6}]}^{3-}} $ is diamagnetic, $ {{[FeF_6]}^{3-}} $ is paramagnetic.

D) $ {{[Fe{{( CN )}_6}]}^{3-}} $ is paramagnetic, $ {{[FeF_6]}^{3-}} $ is diamagnetic.

Show Answer

Answer:

Correct Answer: A

Solution:

Both are paramagnetic, the only difference is that $ C{N^{-}} $ is a strong field ligand whereas $ {F^{-}} $ is a weak field ligand.



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