Question

How h2o2 act as an oxidising agent in acidic and basic medium as welll

Answer 1

Its reducing properties:

It reduces ClCl to HClHCl

It reduces Ag2OAgX2O to AgAg

It reduces K3[Fe(CN)6]KX3[Fe(CN)X6] (potassium ferricyanide) to K4[Fe(CN)6]KX4[Fe(CN)X6](potassium ferrocyanide)

Etc.

Half equations for reduction:

In acidic medium: H