How does hybridisation effect bond angle?

Hybridization influences bond angles by determining the arrangement of electron domains around a central atom. Hybridization allows the orbitals to mix and form new hybrid orbitals, which can influence the geometry of the molecule and consequently affect the bond angles. For example, in a molecule with sp3 hybridization, the bond angles are approximately 109.5 degrees due to the tetrahedral arrangement of electron domains.