The oxidation number of Cr in the following c | vedclass

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Question

(A) The complex is $[(H_2O)_4Cr(\mu-OH)(\mu-O_2)Cr(H_2O)_4]^{n+}$ (Note: The provided structure is a $\mu$-peroxo and $\mu$-hydroxo bridged complex).A

Vedclass · Accepted Answer

$3$

Vedclass · Answer

(A) The complex is $[(H_2O)_4Cr(\mu-OH)(\mu-O_2)Cr(H_2O)_4]^{n+}$ (Note: The provided structure is a $\mu$-peroxo and $\mu$-hydroxo bridged complex).Assuming the structure contains one $\mu$-peroxo $(O_2^{2-})$ bridge and one $\mu$-hydroxo $(OH^-)$ bridge:Let the oxidation state of $Cr$ be $x$.Total charge on the complex = $3+$.Sum of oxidation states = $2x + 4(0) + 4(0) + (-1) + (-2) = +3$.$2x - 3 = +3$.$2x = 6$.$x = +3$.Thus,the oxidation state of $Cr$ is $+3$.

The oxidation number of $Cr$ in the following complex is:

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