Benzene Structure

Benzene is less reactive than alkenes such as cyclohexene.
Benzene does not decolourise bromine water or take part in electrophilic addition reactions.Kekule proposed two resonating structures.

The enthalpy of hydrogenation of benzene is less exothermic than expected, suggesting that the actual structure of benzene is more stable than the Kekule structure.
In the delocalised model of benzene, sigma bonds form a hexagonal structure. The overlap of p orbitals forms 3 delocalised π orbitals spread over all six carbon atoms above and below the ring.