Oxidation number of cobalt in K[Co(CO)4] is [KCET 1996]

(1) + 1

(2) + 3

(3) – 1

(4) – 3

Concept Videos :-

#2 | Oxidising & Reducing Agent
#6 | Balancing of Equation by suing n Factor

Concept Questions :-

Oxidation & Reducing Agents (Oxidation No)
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