Addition polymers Quiz
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5 questions, one answer each
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1. Which is the repeating unit of poly(ethene)?
- A. (–CH₂–CH₂–)
- B. (–CH=CH–)
- C. (–CH₃–CH₃–)
- D. (–CH₂–CH₃–)
2. A section of polymer chain is –CH₂–CHCl–CH₂–CHCl–. What is the monomer?
- A. CH₂=CCl₂
- B. CHCl=CHCl
- C. CH₂=CHCl
- D. CH₃CH₂Cl
3. Why is poly(propene) unreactive?
- A. It contains C=C bonds
- B. It has only strong, non-polar C–C and C–H bonds
- C. It has many hydrogen bonds
- D. It is a liquid
4. What forces act between poly(propene) chains?
- A. Hydrogen bonds
- B. Ionic attractions
- C. Covalent bonds
- D. London forces
5. How does a plasticiser make PVC flexible?
- A. It forms covalent bonds between the chains
- B. It sits between the chains, weakening intermolecular forces
- C. It converts C–Cl to C–H
- D. It makes the chains shorter by cutting them