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2.3 Structure and bonding of carbon

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Question 20
H

Graphene and carbon nanotubes are both built from sheets of hexagonal rings of carbon atoms. What is the main difference between their structures?

[1]
A

Graphene has four bonds per carbon atom; a nanotube has three bonds per atom.

B

Graphene stays as a flat sheet; a nanotube is a sheet rolled into a cylinder.

C

Graphene has three bonds per carbon atom; a nanotube has four bonds per atom.

D

Graphene is a sheet rolled into a cylinder; a nanotube stays as a flat sheet.

Markscheme

2.3 Structure and bonding of carbon Questions

  1. GCSE
  2. /Chemistry
  3. /2.3 Structure and bonding of carbon

40 exam-style questions on AQA GCSE Chemistry 2.3 Structure and bonding of carbon, covering 2.3.1 Diamond, 2.3.2 Graphite, and 2.3.3 Graphene and fullerenes. Each one has a worked solution and a mark scheme showing where the marks go.

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