Multiple choice

Which of the following are examples of thermosetting plastics?

  1. PTFE
  2. PMMA
  3. PAN
  4. Duroplast
  5. Bakelite Select the correct answer.

  1. 1 and 2

  2. 2 and 3

  3. 3 and 4

  4. 4 and 5

  5. 3, 4 and 5

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

Duroplast is a composite thermosetting plastic, a close relative of formica and bakelite.  Bakelite is a thermosetting phenol formaldehyde resin, formed from an elemination reaction of phenol with formaldehyde.