A) \[+\,1\]
B) \[+\,3\]
C) \[~-1\]
D) \[-3\]
Correct Answer: C
Solution :
Let the oxidation number of cobalt is \[x\]in \[K[Co{{(CO)}_{4}}].\] \[1+x+0=0\] \[x=-1\]You need to login to perform this action.
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