The sp2 hybridized carbons have shorter and stronger bonds than the sp3 hybridized carbon atoms.
A dihalide is an organic compound that contains two halogen atoms that are located on different carbon atoms hence they can be eliminated during dehydrohalogenation reactions.
We must note that it is more difficult to form an alkyne from a dihalide because the sp2 hybridized carbons have shorter and stronger bonds than the sp3 hybridized carbon atoms.
Learn more about sp2 hybridized carbons: https://brainly.com/question/6920150