1.

K_(4)[Fe(CN)_(6)] is usedto test Cu^(2+),Fe^(2+),Zn^(2+),Cd^(2+)

Answer»


Solution :`Na(FE(CN)_(6)]` give differentcoloured pptwith `Cu^(2+),Fe^(2+),Zn^(2+),CD^(2+)`
`2Cu^(2+)+ K_(4)[Fe(CN)_(6)] rarr underset(chocolate coloured )(Cu_(2)[Fe(Cn)_(6)]) + 4K^(Theta)`
`Fe^(2+) + K_(6) [Fe(CN)_(6)) rarr underset(blue)(KFe^(III)[Fe^(II)(CN)_(6)]) + 3K^(oplus)`


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