Question 7(b)(i)
[Maximum number: 1]
Many organic compounds contain carbon and hydrogen only.
Fig. 7.1 shows a section of a polymer formed from an alkene.
Identify the functional group in alkenes that reacts when alkenes form polymers.
CAIE IGCSE Chemistry 11.5.1 Bonding in alkenes includes a double
Practise identifying alkenes as unsaturated hydrocarbons by locating the carbon-carbon double covalent bond in structures.
How this is tested
- identify the C=C functional group in alkene structures and polymer monomers
- explain unsaturation by linking C=C bonding with hydrocarbons containing only C and H