The type of hybridization indicates the geometry of a molecule. In water molecule, the oxygen atom is sp3hybridized. But water molecule has no tetrahedral geometry. Explain
Bonding pairs of electrons are those electrons that are shared by the central atom and/or to any atom to which it is bonded. Non-bonding pairs of electrons are those pairs of electrons on an individual atom that are not shared with any other atom. Groups is a more generic term. The term electron-pair geometry (or simply geometry) is the name of the geometry of the electron-pair/groups/domains on the central atom, whether they are bonding or non-bonding. Molecular geometry is the name of the geometry used to describe the shape of a molecule. The electron-pair geometry provides a guide to the bond angles of between a terminal-central-terminal atom in a compound whereas the molecular geometry gives the shape of the molecule.
The geometry of H2O molecule is tetrahedral due to its sp3 hybridisation. but its shape is bent due to presence of a lone pair on oxygen. The non bonding electrons-bonding pair repulsion is more and that deviates the molecule from the geometry.