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

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

This is the correct option. In bakelite and melamine, the cross-links prevent the displacement of individual polymer chains on being heated. They are thermosetting plastics.