4. a) +1 Oxidation Number of cobalt in K[Co(CO)4
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The oxidation number of cobalt in K[Co(CO)₄] is
[Co(CO)4]⁻¹
the oxidation state of CO is 0 .
therefore its oxidation number is x + 4*0 =-1
x=-1
[Co(CO)4]⁻¹
the oxidation state of CO is 0 .
therefore its oxidation number is x + 4*0 =-1
x=-1
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