Compare the structures of H2O and H2 O2.
The central O atom in water is sp3 hybridized and two O-H bonds are present. Two lone pairs of electrons are present in two sp3 hybrid orbitals. Water molecule has bent geometry with H-O-H bond angle of 104.5o . The structure of H2O2 is non planar. A single covalent bond is present between 2 O atoms. Each O atom is covalently bonded to one H atom. Two O-H bonds are in different planes and the dihedral angle between the planes is 111.5o in the gas phase.