The correct statement about the magnetic prop | vedclass

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(A) In both complexes,the central metal ion is $Fe^{3+}$. The electronic configuration of $Fe^{3+}$ is $[Ar] 3d^5$.For $[Fe(CN)_6]^{3-}$: $CN^-$ is a

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Both are paramagnetic

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(A) In both complexes,the central metal ion is $Fe^{3+}$. The electronic configuration of $Fe^{3+}$ is $[Ar] 3d^5$.For $[Fe(CN)_6]^{3-}$: $CN^-$ is a strong field ligand,which causes pairing of electrons in the $3d$ orbitals. This results in one unpaired electron $(t_{2g}^5 e_g^0)$,making it paramagnetic.For $[FeF_6]^{3-}$: $F^-$ is a weak field ligand,which does not cause pairing of electrons. This results in five unpaired electrons $(t_{2g}^3 e_g^2)$,making it paramagnetic.Therefore,both complexes are paramagnetic.

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

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Assertion : $[Fe(CN)_6]^{3-}$ is weakly paramagnetic while $[Fe(CN)_6]^{4-}$ is diamagnetic.
Reason : $[Fe(CN)_6]^{3-}$ has $+3$ oxidation state while $[Fe(CN)_6]^{4-}$ has $+2$ oxidation state.

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