2025 Pearson Edexcel Level 3 GCE Chemistry Advanced
Subsidiary PAPER 2: Advanced Organic and Physical Chemistry Combined Question Paper and Marking
Scheme
Please check the examination details below before entering your candidate information
Candidate surname Other names
Centre Number Candidate Number
Pearson Edexcel Level 3 GCE
Monday 16 June 2025
Morning (Time: 1 hour 45 minutes) Paper
reference 9CH0/02
Chemistry
Advanced
PAPER 2: Advanced Organic and Physical Chemistry
You must have: Total Marks
Scientific calculator, Data Booklet, ruler
Instructions
• Use black ink or ball‑point pen.
• Fill in theisboxes
If pencil used for diagrams/sketches/graphs it must be dark (HB or B).
• centre number andat thecandidate
top of this page with your name,
number.
•• Answer
Answer all questions.
the questions in the spaces provided
– there may be more space than you need.
Information
• The total mark for this paper is 90.
• The marks for each question are shown in brackets
– use this as a guide as to how much time to spend on each question.
• For the question marked with an asterisk (*), marks will be awarded for your ability
to structure your answer logically, showing how 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
Showeach question
all your carefully
working before you
in calculations andstart to answer
include it.
units where appropriate.
• Check your answers if you have time at the end.
• Turn over
P77833A
©2025 Pearson Education Ltd.
Y:1/1/1/
,
,DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA
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
answer, put a line through the box and then mark your new answer with a cross .
1 This question is about mass spectrometry.
(a) Which molecule would not give a molecular ion peak with m/z = 74?
(1)
A C2H5COOH
B CHOCOOH
C CH2(OH)COOH
D CH3COOCH3
(b) The fragmentation pattern in a mass spectrum can be used to distinguish
between structural isomers.
Which m/z peak would be present in the mass spectrum of propanal, CH3CH2CHO,
but not in the mass spectrum of propanone, CH3COCH3?
DO NOT WRITE IN THIS AREA
(1)
A 15
B 29
C 43
D 59
(Total for Question 1 = 2 marks)
DO NOT WRITE IN THIS AREA
3
Turn over
Subsidiary PAPER 2: Advanced Organic and Physical Chemistry Combined Question Paper and Marking
Scheme
Please check the examination details below before entering your candidate information
Candidate surname Other names
Centre Number Candidate Number
Pearson Edexcel Level 3 GCE
Monday 16 June 2025
Morning (Time: 1 hour 45 minutes) Paper
reference 9CH0/02
Chemistry
Advanced
PAPER 2: Advanced Organic and Physical Chemistry
You must have: Total Marks
Scientific calculator, Data Booklet, ruler
Instructions
• Use black ink or ball‑point pen.
• Fill in theisboxes
If pencil used for diagrams/sketches/graphs it must be dark (HB or B).
• centre number andat thecandidate
top of this page with your name,
number.
•• Answer
Answer all questions.
the questions in the spaces provided
– there may be more space than you need.
Information
• The total mark for this paper is 90.
• The marks for each question are shown in brackets
– use this as a guide as to how much time to spend on each question.
• For the question marked with an asterisk (*), marks will be awarded for your ability
to structure your answer logically, showing how 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
Showeach question
all your carefully
working before you
in calculations andstart to answer
include it.
units where appropriate.
• Check your answers if you have time at the end.
• Turn over
P77833A
©2025 Pearson Education Ltd.
Y:1/1/1/
,
,DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA
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
answer, put a line through the box and then mark your new answer with a cross .
1 This question is about mass spectrometry.
(a) Which molecule would not give a molecular ion peak with m/z = 74?
(1)
A C2H5COOH
B CHOCOOH
C CH2(OH)COOH
D CH3COOCH3
(b) The fragmentation pattern in a mass spectrum can be used to distinguish
between structural isomers.
Which m/z peak would be present in the mass spectrum of propanal, CH3CH2CHO,
but not in the mass spectrum of propanone, CH3COCH3?
DO NOT WRITE IN THIS AREA
(1)
A 15
B 29
C 43
D 59
(Total for Question 1 = 2 marks)
DO NOT WRITE IN THIS AREA
3
Turn over
