Concept:Benzene has a cyclic structure with alternating single and double bonds. Each single bond is a sigma bond, and each double bond has one sigma and one pi bond.Explanation:In benzene (C6​H6​), the carbon atoms form a ring. There are 6 carbon–hydrogen (C–H) sigma bonds and 6 carbon–carbon (C–C) sigma bonds. That makes 6+6=12 sigma bonds.The three double bonds each contribute one pi bond. Thus, there are 3 pi bonds in total. So benzene has 12 sigma and 3 pi bonds.
