In dichlorodioxalatochromium(III),the primary | vedclass

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(C) The chemical formula for dichlorodioxalatochromium$(III)$ is $[Cr(C_2O_4)_2Cl_2]^-$. Primary valency corresponds to the oxidation state of the cen

Vedclass · Accepted Answer

$3, 6$

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(C) The chemical formula for dichlorodioxalatochromium$(III)$ is $[Cr(C_2O_4)_2Cl_2]^-$. Primary valency corresponds to the oxidation state of the central metal atom. Here,for $Cr$,let it be $x$: $x + 2(-2) + 2(-1) = -1 \implies x - 4 - 2 = -1 \implies x = +3$. Secondary valency corresponds to the coordination number. Since oxalate is a bidentate ligand $(2 	imes 2 = 4)$ and chloride is a monodentate ligand $(2 	imes 1 = 2)$,the total coordination number is $4 + 2 = 6$. Thus,the primary and secondary valencies are $3$ and $6$ respectively.

In dichlorodioxalatochromium$(III)$,the primary and secondary valencies are respectively ......

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