Which of the following complexes is neutral?

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(D) complex is neutral if the net charge on the coordination entity is zero.$(1)$ $K_3[Fe(CN)_5NO]$: The coordination entity is $[Fe(CN)_5NO]^{3-}$, w

Vedclass · Accepted Answer

$[Ni(CO)_4]$

Vedclass · Answer

(D) complex is neutral if the net charge on the coordination entity is zero.$(1)$ $K_3[Fe(CN)_5NO]$: The coordination entity is $[Fe(CN)_5NO]^{3-}$, which is charged.$(2)$ $[Zn(NH_3)_4]^{2+}$: This is a cationic complex with a charge of $+2$.$(3)$ $[Co(NH_3)_5Cl]^{2+}$: This is a cationic complex with a charge of $+2$.$(4)$ $[Ni(CO)_4]$: The oxidation state of $Ni$ is $0$ and $CO$ is a neutral ligand. The net charge is $0 + 4(0) = 0$. Thus, it is a neutral complex.

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