Identify the anionic complex from the followi | vedclass

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(D) To identify an anionic complex,we look for a complex ion that carries a negative charge. $A$: $\left[Pt(en)_2(SCN)_2\right]^{2+}$ is a cationic co

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Sodium hexanitrocobaltate$(III)$

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(D) To identify an anionic complex,we look for a complex ion that carries a negative charge. $A$: $\left[Pt(en)_2(SCN)_2\right]^{2+}$ is a cationic complex. $B$: $\left[Co(NH_3)_5(CO_3)\right]Cl$ dissociates into $\left[Co(NH_3)_5(CO_3)\right]^{+}$ and $Cl^-$,making it a cationic complex. $C$: $\left[Fe(CO)_5\right]$ is a neutral complex. $D$: $Na_3\left[Co(NO_2)_6\right]$ dissociates into $3Na^+$ and $\left[Co(NO_2)_6\right]^{3-}$. Since the complex ion $\left[Co(NO_2)_6\right]^{3-}$ carries a negative charge,it is an anionic complex.

Identify the anionic complex from the following.

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