2 K4 [Fe (CN)6](aq) + H2O2 (aq) → 2 K3 [Fe (CN)6](aq) + 2KOH(aq) is an example of
Oxidation
2 K4 [Fe (CN)6](aq) + H2O2 (aq) → 2 K3 [Fe (CN)6](aq) + 2KOH(aq)
is an example of oxidation because "oxidation" is defined as the addition of removal of electropositive element from a substance.There is removal of electropositive element potassium from Potassium ferrocyanide.