Question detail
What is the monomer used to produce the polyester PET?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Polymers (A-level only)
Question
- A. Ethylene glycol and terephthalic acid
- B. Hexamethylenediamine and adipic acid
- C. Ethanol and acetic acid
- D. Propylene glycol and phthalic acid
Answer
Ethylene glycol and terephthalic acid
Explanation
The correct answer is ethylene glycol and terephthalic acid, as these are the monomers that undergo condensation polymerization to form the polyester PET.
Common mistake
Incorrect Monomer Identification
Students often confuse the monomers used in polyesters and polyamides, leading to incorrect repeating units.
Review the structures of common monomers like ethylene glycol and terephthalic acid for polyesters, and hexamethylenediamine and adipic acid for polyamides. Practice drawing their structures to reinforce understanding.
Related flashcards
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Related practice questions
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