The newest 8 of 8 written questions. Open one to see it on the real paper.
is made from many smaller molecules called monomers
See it on the paper →Which structure represents a polymer?
See it on the paper →Explain why ethanol is not a hydrocarbon. (i)
See it on the paper →Molecule X can be drawn using a box to represent the carbon chain. This is shown in Fig. 6.2. Fig. 6.2 also shows another molecule, Y. H H N N HO H H X O O C C OH Y Fig. 6.2 Draw the structure of the polymer nylon. Molecules of X react with molecules of Y to make the polymer nylon.
See it on the paper →Which statement about these polymers is correct?
See it on the paper →make long chain molecules from small monomer units.
See it on the paper →Complete the sentence to define a polymer. A polymer is a molecule formed from small units called .
See it on the paper →Ethene is changed into poly(ethene) in a polymerisation reaction. Polymerisation changes many small molecules into larger long chain molecules. small molecules polymerisation larger long chain molecules State the name of the small molecules used in polymerisation. Choose from the list. alkane monomer nylon polymer
See it on the paper →Comprehensive responses • Most candidates recognised the description of a polymer and correctly identified poly(ethene). Limited responses • A few candidates could not recognise the description of a polymer.
— Examiner report, February/March 2026, 0654/32 Q5(a)(iv) (Cambridge)
Many candidates had the idea that ethanol contains oxygen. Others just described ethanol as saturated or said it contained hydrogen and carbon, without reference to these being the only atoms present in a hydrocarbon.
— Examiner report, May/June 2025, 0654/33 Q6(a)(i) (Cambridge)
This question was very demanding. Only the strongest candidates were able to draw the polymer. Credit was given to candidates that drew continuation bonds, even if the repeating unit was incorrect.
— Examiner report, May/June 2025, 0654/42 Q6(b) (Cambridge)
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