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# What is the oxidation state of Fe in the product formed when acidified pottasium ferrocyanide treated with $H_2O_2$?

$\begin{array}{1 1}(a)\;+2\\(b)\;+6\\(c)\;+1\\(d)\;+3\end{array}$

$K_3[Fe(CN)_6]$ can be formed.In this Fe oxidation state is +3.
Hence (d) is the correct answer.