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

Question

The oxidation number of cobalt in K [ Co ( CO )4] is: (A) +1 (B) +3 (C) -1 (D) -3

Tardigrade Admin · Accepted Answer

Let the oxidation number of Co be x. In K [ Co ( CO )4], 1+ x +0=0 [as CO is neutral] x=-1

Q. The oxidation number of cobalt in $K [C o (CO)_{4}]$ is: