Which one of the following shows maximum para | vedclass

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(A) $(I) [Fe(CN)_6]^{3-}$Here,the oxidation state of $Fe$ is $+3$.The electronic configuration of $Fe$ (ground state) is $[Ar] 3d^6 4s^2$.The electron

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$[Fe(CN)_6]^{3-}$

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(A) $(I) [Fe(CN)_6]^{3-}$Here,the oxidation state of $Fe$ is $+3$.The electronic configuration of $Fe$ (ground state) is $[Ar] 3d^6 4s^2$.The electronic configuration of $Fe^{3+}$ is $[Ar] 3d^5 4s^0$.Number of unpaired electrons $= 5$.$(II) [Fe(CN)_6]^{4-}$Here,the oxidation state of $Fe$ is $+2$.The electronic configuration of $Fe^{2+}$ is $[Ar] 3d^6 4s^0$.Due to the strong field ligand $CN^-$,the electrons pair up,resulting in $0$ unpaired electrons.$(III) [Cr(H_2O)_6]^{3+}$Here,the oxidation state of $Cr$ is $+3$.The electronic configuration of $Cr^{3+}$ is $[Ar] 3d^3 4s^0$.Number of unpaired electrons $= 3$.$(IV) [Cu(H_2O)_6]^{2+}$Here,the oxidation state of $Cu$ is $+2$.The electronic configuration of $Cu^{2+}$ is $[Ar] 3d^9 4s^0$.Number of unpaired electrons $= 1$.The paramagnetic character is directly proportional to the number of unpaired electrons.Therefore,$[Fe(CN)_6]^{3-}$ has the maximum paramagnetic character.

Complex	Magnetic Moment $(BM)$
$K_4[Mn(CN)_6]$	$2.2$
$[Fe(H_2O)_6]^{2+}$	$5.3$
$K_2[MnCl_4]$	$5.9$

Which one of the following shows maximum paramagnetic character?

Similar Questions

Which of the following compounds has the highest magnetic moment?

The total number of geometrical isomers possible for an octahedral complex of the type $[MA_{2}B_{2}C_{2}]$ is ($M=$ transition metal; $A, B$ and $C$ are monodentate ligands).

What can be inferred from the magnetic moment values of the following complex species?

Complex Magnetic Moment $(BM)$

$K_4[Mn(CN)_6]$ $2.2$

$[Fe(H_2O)_6]^{2+}$ $5.3$

$K_2[MnCl_4]$ $5.9$

The number of possible geometric isomers for a square planar complex $[Mabcd]$ is ............. ($M =$ central metal,$a, b, c, d =$ monodentate ligands).

What type of isomerism is exhibited by $[Co(NH_3)_6][Cr(CN)_6]$ and $[Cr(NH_3)_6][Co(CN)_6]$?

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