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Potassium ferrocyanide is used in the de...

Potassium ferrocyanide is used in the detection of

A

`Fe^(2+)` ion

B

`Fe^(3+)` ions

C

`Cu^(2+)` ion

D

`Cd^(2+)` ion

Text Solution

Verified by Experts

`4FeCl_(3) +3K_(4)[Fe(CN)_(6)] to underset("Ferriferrocyanide")underset("Prissaian blue")(Fe_(4)[Fe(CN)_(6)]_(3)+12KCl`
`2CuSO_(4)+K_(4)Fe(CN)_(6) to underset("Chocolate")(Cu_(2)[Fe(CN)_(6)]+2K_(2)SO_(4)`
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