Does hydrogen peroxide on oxidation gives oxygen gas only in basic medium?
I thought that was true but I read about these reaction of $\ce{H2O2}$ in acidic medium: $$\ce{2MnO4- + 6H+ + 5H2O2 -> 2Mn^{+2} + 8H2O + 5O2}$$
$$\ce{K2Cr2O7 + 4H2SO4 + 3H2O2 -> K2SO4 + Cr2(SO4)3 + 7H2O + 3O2}$$
What is the possible explanation of both the title and the reactions?