Polymers (HSC SSCE Chemistry): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What are the small building-block molecules that link together to form polymers called?
What are the small building-block molecules that link together to form polymers called?
Monomers
Which property makes thermoplastic polymers highly suitable for recycling?
Which property makes thermoplastic polymers highly suitable for recycling?
They soften when heated
What structural feature gives thermosetting polymers their superior rigidity?
What structural feature gives thermosetting polymers their superior rigidity?
Strong cross-links between chains
Which of these is an example of a thermoplastic polymer?
Which of these is an example of a thermoplastic polymer?
PET (soft-drink bottles)
What is the chemical formula of ethylene (ethene)?
What is the chemical formula of ethylene (ethene)?
What is the purpose of cracking in polymer production?
What is the purpose of cracking in polymer production?
Break large molecules into smaller ones
What temperature is used in catalytic cracking?
What temperature is used in catalytic cracking?
Approximately 500°C
What pressure level is required for thermal cracking?
What pressure level is required for thermal cracking?
Up to 70 atmospheres
What is a major environmental challenge with synthetic polymers?
What is a major environmental challenge with synthetic polymers?
They persist for decades or centuries
What is the primary source from which ethylene is obtained?
What is the primary source from which ethylene is obtained?
Crude oil (petroleum)