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Q.

The correct statement about the magnetic properties of Fe(CN)63 and  FeF63 is (Z=26).

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a

both are paramagnetic.

b

Fe(CN)63 is paramagnetic, FeF63 is diamagnetic.

c

both are diamagnetic

d

Fe(CN)63 is diamagnetic, FeF63 is paramagnetic.

answer is A.

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Detailed Solution

The electronic configuration of free Fe3+ ion is 3d5, i.e

Question Image

In Fe(CN)63, the configuration is

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In FeF63, the configuration is

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Both the complexes contain unpaired electron (s). Hence, these are paramagnetic.

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