Chapter summary
Organic Chemistry, at a glance
Recognise molecular families and connect structures, reactions, fuels and materials.
O-Level 5086 / 5088 (2026) / SEC G3 K326 / K328 (2027)
Quick revision
Revisit the essentials, then return to an explanation when you need it.
- Alkane
Combustion; chlorine substitution under UV; larger molecules can crack.
- Alkene
Bromine/hydrogen addition and addition polymerisation.
- Ethanol
Fermentation makes it; combustion releases energy; oxidation forms ethanoic acid.
- Polymer
Match the repeat unit to its monomer; distinguish physical and chemical recycling.