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What is the oxidation state of Fe in the product formed when acidified Potasssium ferrocyanide `(K_(4)[Fe(CN)_(6)])` is treated with hydrogen peroxide

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What is the oxidation state of Fe in the product formed when acidified Potasssium ferrocyanide `(K_(4)[Fe(CN)_(6)])` is treated with hydrogen peroxide?
A. `+2`
B. `+3`
C. `+1`
D. `+6`
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Correct Answer - B
`K_(4) [Fe(CN)_(6)] rarr K_(3)[Fe(CN)_(6)]`
`Fe^(+2) rarr Fe^(+3)`
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