objective questions for chemistry class xii
clohexane b) Benzene c) Cyclohexene d) Cyclobutadiene Answer: b) Benzene Explanation: Benzene is aromatic due to its planar structure with delocalized π-electrons satisfying Huckel's rule (4n + 2 π-electrons, where n=1). Cyclohexane is saturated and non-aromatic, cyclohexene contains