Question

write a method of preparation of potassium ferricyanide and its reaction with copper sulphate solution.​

Answer 1

Method of Preparation of Ferricynide ;

It is prepared by passing Chlorine through the sol of Potassium Ferrocynide.

2k4[Fe(CN)6] + Cl2----> 2k3[Fe(CN)6+2kCl

Reaction of Ferricynide with CuSO4

K4[ Fe(CN)6] + 2CuSO4 -------> Cu2[Fe(CN)6]+2K2SO

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