H2O2 acts as bleaching agent. In this reaction H2O2 undergoes
Oxidation
Reduction
Neither oxidation nor reduction
Disproportionation
H2O2 bleaches by acting as an oxidizing agent hence it undergoes reduction.
In the reaction Ag2O+H2O2→2Ag+H2O+O2. H2O2 acts as :
H2O2 can act as: