IPUAC name of the complex ion $[C r C l_{2} (o x)_{2}]^{3 -}$ is

Bisoxalatodichlorochromate (III)

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Dioxalatodichlorochromate (III)

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Dichlorodioxalatochromate (III)

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Dichlorodioxalatochromium (III)

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Solution

The correct option is C Dichlorodioxalatochromate (III)
Given complex is anionic complex. In this case the name of the metal is modified to show that it has ended up in a negative ion.

So, IUPAC name of complex anion is Dichlorodioxalato chromate (III).

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[{Ru(bipyridyl)}_{3})]^{2 +}, [C r (E D T A)]^{2 +}, trans- [C r C l_{2} (o x)_{2}]^{3 -}

cis- [C r C l_{2} (o x)_{2}]^{3 -}

(i) [C o (N H_{3})_{4} (H_{2} O) C l]^{2 +} (i i) [P t (N H_{3})_{2} C l_{2}] (i i i) [C o C l_{2} (e n)_{2}]^{+} (i v) [C r (H_{2} O)_{5} C l] C l_{2} (v) [F e (N H_{3})_{2} (C N)_{4}]^{-} (v i) [C r C l_{2} (o x)_{2}]^{3 -} (v i i) K [C o (H_{2} O)_{2} (o x)_{2}] (v i i i) [C o (N H_{3})_{2} C l_{2} (e n)]^{+} (i x) [C o (e n)_{3}] C l_{3}

cis-trans

[F e (C N)_{6}]^{3 -}

{[C o {(N H_{3})}_{6}]}^{3 +}

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