Redox and Equivalent ConceptHard
Question
In which of the following compound, iron has the lowest oxidation state?
Options
A.Fe(CO)5
B.Fe2O3
C.K4[Fe(CN)6]
D.FeSO4⋅(NH4)2SO4⋅6H2O
Solution
The oxidation state of Fe in $Fe(CO)_{5},Fe_{2}O_{3},K_{4}\left\lbrack Fe(CN)_{6} \right\rbrack$ and $FeSO_{4}.\left( NH_{4} \right)_{2}SO_{4}.6H_{2}O$ are 0, +3, +2 and +2, respectively.
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