Benzene 
The structure of benzene
Mesomerism of benzene
Addition of bromine to benzene (vidéo)
The electrophilic attack
The electrophilic substitution of nitric acid on benzene (mecanism)
The electrophilic substitution of nitric acid on an aromatic nucleus (video-exercise)
The alkylation of the benzene nucleus: Friedel-Crafts reaction (video-exercise)
Diazotization