Free Industrial Chemistry MCQs with Answers
21 Industrial Chemistry MCQs from Chemistry, each with the correct answer and a written explanation of why it is correct. Free and unlimited, with no account needed.
21 questions · page 3 of 3
21. Poly vinyl chloride (PVC) is the type of:
- A. Homopolymer
- B. Thermosetting polymer
- C. Thermoplastic polymer
- D. Copolymer
Explanation: This is the option marked correct in the official UHS answer key. PVC softens on heating and can be remoulded repeatedly because its chains are separate and held only by weak intermolecular forces, which is what thermoplastic means and is why it is recyclable. It is also a homopolymer, since it is built from one monomer, chloroethene, so option (a) is true as well and this question turns on which classification the examiner intended.
Correct answer: Thermoplastic polymer