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Synthetic Fibres and Fabrics (Class VIII)

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Multiple Choice

In which of the following do the cross-links prevent the displacement of individual polymer chains on being heated?

a. Bakelite
b. Melamine
c. Polythene
d. PVC

  1. Only a and b
  2. Only b and c
  3. Only a and c
  4. Only b and d
  5. Only a and d
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