Question detail
What is the main difference between low density and high density poly(ethene)?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Using materials
Question
- A. Low density poly(ethene) has a more branched structure than high density poly(ethene)
- B. High density poly(ethene) is produced at lower temperatures than low density poly(ethene)
- C. Low density poly(ethene) is more rigid than high density poly(ethene)
- D. High density poly(ethene) has a lower melting point than low density poly(ethene)
Answer
Low density poly(ethene) has a more branched structure than high density poly(ethene)
Explanation
Low density poly(ethene) has a more branched structure, which results in lower density and flexibility compared to high density poly(ethene), which has a more linear structure.
Common mistake
Confusing Poly(ethene) Types
Students often confuse the production processes of low density and high density poly(ethene), thinking they are produced under the same conditions.
Remember that low density poly(ethene) is produced at high temperatures and pressures, while high density poly(ethene) is produced at lower temperatures and pressures with a different catalyst.
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