A) \[FeS{{O}_{4}}\]
B) \[Fe{{(CO)}_{4}}\]
C) \[{{[Fe{{(CN)}_{6}}]}^{4-}}\]
D) \[FeC{{l}_{3}}\]
Correct Answer: B
Solution :
The oxidation number of iron is zero in \[Fe{{(CO)}_{4}}\]. Let the oxidation number of iron is \[x.\] \[x+4\times 0=0\] \[x=0\]
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