Question detail
What is the primary 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) is produced at high temperatures and pressures, while high density poly(ethene) is produced at low temperatures and pressures.
- B. Low density poly(ethene) has a more branched structure, while high density poly(ethene) has a more linear structure.
- C. Low density poly(ethene) is used for making rigid products, while high density poly(ethene) is used for flexible products.
- D. Low density poly(ethene) is more durable than high density poly(ethene).
Answer
Low density poly(ethene) has a more branched structure, while high density poly(ethene) has a more linear structure.
Explanation
The structure of low density poly(ethene) is more branched, which leads to lower density and flexibility, while high density poly(ethene) has a more linear structure, resulting in higher density and strength.
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.
Related flashcards
Flashcard 1 of 5
Related practice questions
Question 1 of 5
Choose an answer, get feedback, then move sideways through the set.