Chemistry · Oct / Nov 2018 · Paper 12 · Question 39
5070Polymers
Poly(lactic) acid is a polymer used to make biodegradable cups. The partial structure of poly(lactic) acid is shown. Which statements apply to poly(lactic) acid? 1 It is made by addition polymerisation. 2 It is made by condensation polymerisation. 3 It is a polyester. 4 The monomer used to make it is ethene.
- A1 and 3
- B1 and 4
- C2 and 3
- D2 and 4
As printed in the paper
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Correct answer: C. 2 and 3
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