PDF
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.
• – usemarks
The for each question are shown in brackets
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
P74448A
©2026 Pearson Education Ltd.
P:1/1/1/1/1/1/1/1/1/
*P74448A0128*
,DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA
*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
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)
3
*P74448A0328* Turn over
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.
• – usemarks
The for each question are shown in brackets
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
P74448A
©2026 Pearson Education Ltd.
P:1/1/1/1/1/1/1/1/1/
*P74448A0128*
,DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA
*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
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)
3
*P74448A0328* Turn over
