Which pair of the following complexes has the | vedclass

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(B) The $EAN$ (Effective Atomic Number) is calculated as: $EAN = Z - 	ext{oxidation state} + (2 	imes 	ext{coordination number})$.For $[Ni(CO)_4]$:

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$[Ni(CO)_4], [Fe(CN)_6]^{4-}$

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(B) The $EAN$ (Effective Atomic Number) is calculated as: $EAN = Z - 	ext{oxidation state} + (2 	imes 	ext{coordination number})$.For $[Ni(CO)_4]$: $Z=28$,$O.S.=0$,$C.N.=4$. $EAN = 28 - 0 + (2 	imes 4) = 36$.For $[Fe(CN)_6]^{4-}$: $Z=26$,$O.S.=+2$,$C.N.=6$. $EAN = 26 - 2 + (2 	imes 6) = 36$.Since both complexes have an $EAN$ of $36$,option $B$ is the correct pair.

Which pair of the following complexes has the same $EAN$ for the metal atom/ion?

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