1.

Potassium ferrocyanide is used in the detection of

Answer»

`Cu^(2+)` ions
`Fe^(3+)` ions
both
none

Solution :Both `Cu^(2+)` and `Fe^(3+)` are detected with potassium FERROCYANIDE.
`2CuSO_(4)+K_(4)[Fe(CN)_(6)] to underset("Chocolate ppt.")(Cu_(2)[Fe(CN)_(6)]+2K_(2)SO_(4)`
`4FeCl_(3)+3K_(4)[Fe(CN)_(6)] to underset("(Prussian BLUE)")underset("ferriferro cyanide")(Fe_(4)[Fe(CN)_(6)])+12KCl`


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