The maximum mark for this paper is 100.
• The marks for questions are shown in brackets.
• You are expected to use a calculator where appropriate.
• You are reminded of the need for good English and clear presentation
...
The maximum mark for this paper is 100.
• The marks for questions are shown in brackets.
• You are expected to use a calculator where appropriate.
• You are reminded of the need for good English and clear presentation
in your answers.
Please write clearly in block capitals.
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GCSE
CHEMISTRY
Higher Tier Paper 1
H2
*02* IB/M/Jun21/8462/1H
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0 1 This question is about carbon and its compounds. box
Fullerenes are molecules of carbon atoms.
The first fullerene to be discovered was Buckminsterfullerene (C60).
0 1 . 1 What shape is a Buckminsterfullerene molecule?
[1 mark]
0 1 . 2 Give one use of a fullerene.
[1 mark]
Propanone is a compound of carbon, hydrogen and oxygen.
Figure 1 shows the dot and cross diagram for a propanone molecule.
Figure 13
*03*
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0 1 . 3 Complete Figure 2 to show a propanone molecule. box
Use a line to represent each single bond.
Use Figure 1.
[1 mark]
Figure 2
0 1 . 4 Determine the molecular formula of propanone.
Use Figure 1.
[1 mark]
Molecular formula =
0 1 . 5 Propanone is a liquid with a low boiling point.
Why does propanone have a low boiling point?
[1 mark]
Tick () one box.
The covalent bonds are strong.
The covalent bonds are weak.
The intermolecular forces are strong.
The intermolecular forces are weak.4
*04* IB/M/Jun21/8462/1H
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box
11
0 1 . 6 Figure 3 represents the structure of graphite.
Figure 3
Explain why graphite is:
• a good electrical conductor
• soft and slippery.
You should answer in terms of structure and bonding.
[6 marks]5
*05*
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ANSWER IN THE SPACES PROVIDED6
*06* IB/M/Jun21/8462/1H
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0 2 This question is about atomic structure and the periodic table. box
Gallium (Ga) is an element that has two isotopes.
0 2 . 1 Give the meaning of ‘isotopes’.
You should answer in terms of subatomic particle
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