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10.3 Using materials

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Question 19
H

HD poly(ethene) is stronger and denser than LD poly(ethene). Which statement explains why?

[1]
A

The chains in HD poly(ethene) are joined by covalent cross-links

B

The chains in HD poly(ethene) are made from a different monomer

C

The chains in HD poly(ethene) are shorter so more chains can pack in

D

The chains in HD poly(ethene) are straighter so they pack more closely

Markscheme

10.3 Using materials Questions

  1. GCSE
  2. /Chemistry
  3. /10.3 Using materials

40 exam-style questions on AQA GCSE Chemistry 10.3 Using materials, covering 10.3.1 Corrosion and its prevention, 10.3.2 Alloys as useful materials, and 10.3.3 Ceramics, polymers and composites. Each one has a worked solution and a mark scheme showing where the marks go.

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