In which of the following pairs is the EAN of | vedclass

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(D) The $EAN$ (Effective Atomic Number) is calculated as: $EAN = Z - X + Y$,where $Z$ is the atomic number,$X$ is the oxidation state,and $Y$ is the n

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$[Ni(CO)_4]$ and $[Ni(CN)_4]^{2-}$

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(D) The $EAN$ (Effective Atomic Number) is calculated as: $EAN = Z - X + Y$,where $Z$ is the atomic number,$X$ is the oxidation state,and $Y$ is the number of electrons donated by ligands.For option $D$:For $[Ni(CO)_4]$: $Z=28, X=0, Y=4 	imes 2 = 8$. $EAN = 28 - 0 + 8 = 36$.For $[Ni(CN)_4]^{2-}$: $Z=28, X=2, Y=4 	imes 2 = 8$. $EAN = 28 - 2 + 8 = 34$.Since $36 
eq 34$,the $EAN$ values are not the same.

In which of the following pairs is the $EAN$ of the central metal atom not the same?

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