What bonds do alkenes have?
Alkenes have only covalent bonds, more specifically single bonds and double bonds between carbon atoms.
Alkanes are saturated compounds while alkenes are unsaturated compounds. Alkanes undergo substitution reaction while alkenes undergo addition reaction. Alkanes have single covalent bonds existing between their atoms while alkenes have double covalent bonds existing between their atoms. Alkanes have single bonds while alkenes have double bonds. An alkene molecule contains carbon, hydrogen and a double bond. Alkynes possess C & H and a triple C C bond, e. g. HCN, and acetylene, H-CC-H.
Though alkenes have more bond energy than alkanes they are comparatively less reactive. This is because in alkenes pi bonds are present in addition to sigma bonds and the presence of these pi bonds does not allow free movement of molecules. Hence a strain builds up in the alkene molecules which makes it more reactive In alkenes pi bond is very weak bond so electrons of pi bond are more exposed to be attacked by…
Alkanes have single bonds only and are therefore saturated. A hydrocarbon is unsaturated if there are multiple bonds or rings within the compound. Alkenes contain double bonds, alkynes contain triple bonds, and cycloalkanes contain rings; these are unsaturated hydrocarbons. But alkanes are saturated.