The oxidation number of cobalt in K [Co(...

The oxidation number of cobalt in `K [Co(CO)_(4)]` is

A

`+1`

B

`+3`

C

`-1`

D

`-3`

Verified by Experts

The correct Answer is:

C

`K[Co(CO)_(4)]`
`+1+x+0=0`
`x=-1`
Oxidation number of cobalt is -1 in given complex.

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