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Octet Rule

Oxidation num...

Question

Oxidation number of Cr in Cr(co)6 is what?

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Solution

Dear student,
Carbonyl (CO) is a neutral ligand with oxidation state 0.
let us assume that Cr has x oxidation state,then
x+0=0 $\Rightarrow$ x=0
Hence chromium(Cr) in this case has 0 xidation state.
Regards

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