Question

what is oxidation number of K[Co(CO)4]

Answer 1

Answer:

Explanation:

-1

Answer 2

Answer:

+7

Explanation:

oxidation no. of K =+1

So, Oxi. no. of Co(C O)4= (-1) as there is neutral charge on the compound.

so let Oxi. no. of Co be 'x'

and oxi. no. of CO is -2, so 4 molecules of CO have -8 oxi. no.

X-8=-1

X=+7