AQA GCSE COMBINED SCIENCE_ TRIOLOGY CHEMISTRY 2H 2025 PREDICTED QUESTION PAPER

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H
AQA GCSE
CHEMISTRY 2025 : Triology
Higher Tier Paper 2
Materials Time allowed: 1 hour 45 minutes
For this paper you must have:
a ruler
a scientific calculator
the periodic table (enclosed). For Examiner’s Use

Instructions Question Mark

Use black ink or black ball-point pen. 1
Pencil should only be used for drawing. 2
Fill in the boxes at the top of this page. 3
Answer all questions in the spaces provided. Do not write outside
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the box around each page or on blank pages.
If you need extra space for your answer(s), use the lined pages at the end of 5
this book. Write the question number against your answer(s). 6
Do all rough work in this book. Cross through any work you do not want 7
to be marked.
8
In all calculations, show clearly how you work out your answer.
TOTAL
Information
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.


SOLE Property of Tyrion's AQA
AQAChemistry
Chemistry2H
2H2025
2025Triology
TriologyQuestion
QuestionPaper
Paper

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Do not write
Outside the
0 1 A Crude oil is separated into fractions in a fractional distillation column. Explain how Box
the process works, referring to boiling points and the structure of the column. Include
details about where longer and shorter hydrocarbons condense (3 marks).



Complete the sentence:
"Fractions separate because they have different _________."
Choose from:
o Melting points
o Boiling points
o Densities [1 Marks]


0 1 B The table below shows the boiling points of three hydrocarbons:


Hydrocarbon Boiling Point (°C)
Methane -161
Hexane 69
Octadecane 318


Explain the trend in boiling points as the size of the hydrocarbon molecule increases
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[2 Marks]
0 1 C Write a balanced chemical equation for the complete combustion of propane (𝐶𝐶3 𝐻𝐻8)
in oxygen.

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[2 Marks]
A student tested a hydrocarbon using bromine water. The solution turned colorless.
What does this indicate about the hydrocarbon? Explain your answer

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[2 Marks]




AQA Chemistry 2H 2025 Triology Question Paper