Please check the examination details below before entering your candidate information
Candidate surname Other names
Centre Number Candidate Number
Pearson Edexcel Level 3 GCE
Tuesday 19 May 2026
Morning (Time: 1 hour 30 minutes) Paper
reference 8CH0/02
Chemistry
Advanced Subsidiary
PAPER 2: Core Organic and Physical Chemistry
You must have: Total Marks
Scientific calculator, Data Booklet, ruler
Instructions
•• Use black ink or ball-point pen.
If pencil is used for diagrams/sketches/graphs it must be dark (HB or B).
• Fill in the boxes at the top of this page with your name,
centre number and candidate number.
• Answer all questions.
• – there may
Answer the questions in the spaces provided
be more space than you need.
Information
• The total mark for this paper is 80.
• The marks for each question are shown in brackets
– use this as a guide as to how much time to spend on each question.
• toForstructure
the question marked with an asterisk (*), marks will be awarded for your ability
your answer logically, showing the points that you make are related or
follow on from each other where appropriate.
• A Periodic Table is printed on the back cover of this paper.
Advice
• Read each question carefully before you start to answer it.
• Show all your working in calculations and include units where appropriate.
• your answers if you have time at the end.
Check Turn over
P74448APearson Education Ltd.
P:1/1/1/1/1/1/1/1/1/
*P74448A0128* for more:
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BLANK PAGE
2
, Answer ALL questions.
Some questions must be answered with a cross in a box . If you change your mind about an
DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA
DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA
answer, put a line through the box and then mark your new answer with a cross .
1 Alkanes are a homologous series of hydrocarbons used as fuels.
(a) The production of fuels includes the process of reforming.
Reforming improves fuel combustion efficiency by converting straight-chain
alkanes into cyclic hydrocarbons or into branched-chain alkanes.
For example, octane may be converted by reforming into cyclooctane or into the
branched‑chain alkane shown.
(i) What is the name of this branched‑chain compound?
(1)
A 2,2,4‑trimethylpentane
B 2,4,4‑trimethylpentane
C 1,1,1,3‑tetramethylbutane
D 2,4,4,4‑tetramethylbutane
(ii) Write the equation for the conversion of octane into cyclooctane showing the
structure of the organic product.
(2)
for more:
3
*P74448A0328* Turn over
Candidate surname Other names
Centre Number Candidate Number
Pearson Edexcel Level 3 GCE
Tuesday 19 May 2026
Morning (Time: 1 hour 30 minutes) Paper
reference 8CH0/02
Chemistry
Advanced Subsidiary
PAPER 2: Core Organic and Physical Chemistry
You must have: Total Marks
Scientific calculator, Data Booklet, ruler
Instructions
•• Use black ink or ball-point pen.
If pencil is used for diagrams/sketches/graphs it must be dark (HB or B).
• Fill in the boxes at the top of this page with your name,
centre number and candidate number.
• Answer all questions.
• – there may
Answer the questions in the spaces provided
be more space than you need.
Information
• The total mark for this paper is 80.
• The marks for each question are shown in brackets
– use this as a guide as to how much time to spend on each question.
• toForstructure
the question marked with an asterisk (*), marks will be awarded for your ability
your answer logically, showing the points that you make are related or
follow on from each other where appropriate.
• A Periodic Table is printed on the back cover of this paper.
Advice
• Read each question carefully before you start to answer it.
• Show all your working in calculations and include units where appropriate.
• your answers if you have time at the end.
Check Turn over
P74448APearson Education Ltd.
P:1/1/1/1/1/1/1/1/1/
*P74448A0128* for more:
,DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA
DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA
for more:
*P74448A0228*
BLANK PAGE
2
, Answer ALL questions.
Some questions must be answered with a cross in a box . If you change your mind about an
DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA
DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA
answer, put a line through the box and then mark your new answer with a cross .
1 Alkanes are a homologous series of hydrocarbons used as fuels.
(a) The production of fuels includes the process of reforming.
Reforming improves fuel combustion efficiency by converting straight-chain
alkanes into cyclic hydrocarbons or into branched-chain alkanes.
For example, octane may be converted by reforming into cyclooctane or into the
branched‑chain alkane shown.
(i) What is the name of this branched‑chain compound?
(1)
A 2,2,4‑trimethylpentane
B 2,4,4‑trimethylpentane
C 1,1,1,3‑tetramethylbutane
D 2,4,4,4‑tetramethylbutane
(ii) Write the equation for the conversion of octane into cyclooctane showing the
structure of the organic product.
(2)
for more:
3
*P74448A0328* Turn over
