Actual 2026/2027 AQA GCSE COMBINED SCIENCE: TRILOGY 8464/C/2H Chemistry Paper 2H QP + Mark Scheme

Alkanes and alkenes are hydrocarbons. box
0 1 . 1 Define the term ‘hydrocarbon’.
[1 mark]
0 1 . 2 The general formula for alkanes is CnH2n+2
Determine the formula of the alkane with 10 carbon atoms.
[1 mark]
Formula =
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IB/M/Jun24/8464/C/2H
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0 1 box . 3 Crude oil is a mixture of hydrocarbons.
Figure 1 represents industrial equipment used to separate crude oil into fractions.
Figure 1
Explain how crude oil is separated into fractions.
Use Figure 1.
[4 marks]
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IB/M/Jun24/8464/C/2H
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0 1 box . 4 The alkane molecule C14H30 can be cracked to produce smaller molecules.
Balance the equation for the reaction.
[1 mark]
C14H30 → C8H18 + C3H6