2.4 Orbital Hybridization and Structure of Alkenes 1)C----SPz-Hybridized carbon atoms 2)One 2p orbital is left unhybridized 3)How to form pi-bond?2.4 Orbital Hybridization and Structure of Alkenes 1) C----SP2 -Hybridized carbon atoms 2) One 2p orbital is left unhybridized 3) How to form pi-bond ?