Other questions in this quiz

2. In PTFE, tetrafluoroethene monomers, which atom is large relative to monomer size, stopping rotation?

  • Fluorine
  • Tetra
  • Ethene
  • Carbon

3. Polythene, 10*100mm, is semi-crystalline. Stretching plastically makes amorphous regions...

  • Line up.
  • Slide.
  • More amorphous.
  • Fall apart.

4. What material has cross-linked structure?

  • Pectin.
  • Vulcanised rubber.
  • Glucagon.
  • Amylopectin.

5. What makes polymers flexible?

  • Polymer chains have weak directional bonds.
  • Polymer chains can rotate around bonds, increasing elasticity. Arrangement of atoms can stop this.
  • Polymer chains can always rotate around bonds, no matter monomer atom structure.
  • Polymer chains have strong, directional bonds.

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