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In any ferric salt on adding potassinum ferrocyanide, a prussian blue colour is obtanied, which is mainly due to the formation of

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In any ferric salt on adding potassinum ferrocyanide, a prussian blue colour is obtanied, which is mainly due to the formation of
A. `K_(3)[Fe(CN)_(6)]`
B. `Kfe[Fe(CN)_(6)]`
C. `FeSO_(4).Fe(CN)_(6)`
D. `Fe_(4)[Fe(CN)_(6)]_(3)`.
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Correct Answer - B
`underset("Potassium ferrocyanide")(Fe^(3+)+K_(4)[Fe(CN)_(6)])rarrunderset("Prussian blue")(KFe[Fe(CN)_(6)]_(3))+3K^(+)`
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