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2.2 How bonding and structure are related to the properties of substances

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Question 20
F

A student says that the covalent bonds in the molecules are broken when poly(ethene) melts. Why is the student wrong?

[1]
A

Poly(ethene) does not contain any covalent bonds in its molecules

B

The covalent bonds in poly(ethene) are weaker than the intermolecular forces

C

Melting poly(ethene) breaks the ionic attractions between its molecules

D

Melting poly(ethene) overcomes only the forces between the molecules

Markscheme

2.2 How bonding and structure are related to the properties of substances Questions

  1. GCSE
  2. /Chemistry
  3. /2.2 How bonding and structure are related to the properties of substances

42 exam-style questions on AQA GCSE Chemistry 2.2 How bonding and structure are related to the properties of substances, covering 2.2.1a The three states of matter, 2.2.1b Limitations of the simple particle model, 2.2.2 State symbols in chemical equations, 2.2.3 Properties of ionic compounds, 2.2.4 Properties of small molecules, 2.2.5 Polymers, 2.2.6 Giant covalent structures, 2.2.7 Properties of metals and alloys, and 2.2.8 Metals as conductors. Each one has a worked solution and a mark scheme showing where the marks go.

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