AQA GCSE Separate Science Chemistry – Paper 2 Higher Tier Predicted Paper 2023 WITH marking scheme
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Course
AQA GCSE Separate Science Chemistry – Paper 2 Hig
Institution
AQA
AQA GCSE Separate Science
Chemistry – Paper 2 Higher Tier
Predicted Paper 2023 WITH marking scheme
Name ……………………………………………………………………
Date …………………
1 hour 45 minutes allowed.
You may use a calculator and an AQA periodic ta...
aqa gcse separate science chemistry – paper 2 higher tier predicted paper 2023 with marking scheme
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A/AS Level
AQA
Separate Science Chemistry – Paper 2
AQA GCSE Separate Science Chemistry – Paper 2 Hig
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GCSE CHEM PPR2 HIGHER PREDICTED 2023
AQA GCSE Separate
Science
Chemistry –
Paper 2 Higher
Tier
Predicted Paper 2023 WITH marking scheme
Name ……………………………………………………………………
Date …………………
1 hour 45 minutes allowed.
You may use a calculator and an AQA periodic table.
Grade boundaries Possible Marks
Question
marks gained
These are VERY rough guesses! Getting a 1 17
7 on this paper does not guarantee you 2 17
the same mark in the exam. 3 15
4 17
5 17
9 70% 6 8
7 9
8 60%
Total 100
7 50%
6 45%
5 35%
4 30%
3 25%
1
,GCSE CHEM PPR2 HIGHER PREDICTED 2023
01
a) Alkanes are hydrocarbons.
Define the term hydrocarbon.
[2 marks]
b) The general formula for alkanes is CnH2n+2,
i. Give the formula for an alkane that has 3 carbons.
[1 mark]
C H
ii. Give the specific name for this alkane.
[1 mark]
iii. Draw this alkane.
[3 marks]
C C C
2
, GCSE CHEM PPR2 HIGHER PREDICTED 2023
c) Alkanes are often very long chains; these are found in the ground
as crude oil. Crude oil is a mixture of different length hydrocarbon
chains.
Explain why crude oil needs to be refined before it can be used.
[3 marks]
d) A student said that “fractional distillation can be used to separate all
types of mixtures”.
Discuss if this student is correct or not.
[3 marks]
3
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