Organic chemistry: basics, hydrocarbons and halogen compounds – Chemistry notes (Cambridge A Level)

Formulae (structural, displayed, skeletal), functional groups, nomenclature; isomerism (structural, cis–trans, optical); reaction types (addition, substitution, elimination, hydrolysis, condensation, oxidation, reduction) and mechanisms (homolytic and heterolytic fission; free radicals, electrophiles, nucleophiles).