PRACTICE PAPER FOR 2026 SUMMER EXAMS
surname names
Number Number
Level 3 GCE
Time 1 hour 45 minutes
Paper
reference 9CH0/02
2025 Predicted Paper
CHEMISTRY
Advanced
PAPER 2: Advanced Organic and Physical Chemistry
Ruler
Instructions
• Use black ink or black ball-point pen.
• Fill in the boxes at the top of this page with your name,
centre number and candidate number.
• Answer all questions.
• Answer the questions in the spaces provided
– there may be more space than you need.
• Show all your working in calculations and include units where appropriate.
Information
• The
• The
total mark for this paper is 90.
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 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.
Check your answers if you have time at the end.
• Good luck with your examination.
Turn over
, PRACTICE PAPER FOR 2026 SUMMER EXAMS
Answer ALL questions.
Some questions must be answered with a cross in a box .
If you change your mind about an answer, put a line through the box
and then mark your new answer with a cross
1 (a) How many molecules are present in 88 g of carbon dioxide (CO₂)?
[Molar mass of CO₂ = 44 g mol−1 Avogadro constant = 6.0 × 1023 mol−1]
(1)
A 6.0 × 1023
B 1.2 × 1024
C 2.4 × 1024
D 3.0 × 1023
(b) Which compound can exhibit E/Z isomerism?
(1)
A CH₂=CH₂
B CH₃CH=CHCH₃
C CH₃CH=CH₂
D CH₃C(CH₃)=CH₂
(c) When 4.00 g of methane (CH₄) is completely burned, how many moles of carbon dioxide are
produced? (Molar mass of CH₄ = 16 g mol⁻¹)
CH₄ + 2O₂ → CO₂ + 2H₂O
(1)
A 0.250 mol
B 0.500 mol
C 0.500 mol
D 1.000 mol
(Total for Question 1 = 3 marks)
2
, PRACTICE PAPER FOR 2026 SUMMER EXAMS
2. Alkenes undergo electrophilic addition reactions with hydrogen halides such as
hydrogen bromide (HBr).
(a) Complete the mechanism for the reaction between 3 methyl-2-pentene and
hydrogen bromide for the formation of 3-bromo-3-methylpentane.
Include curly arrows, and relevant lone pairs and dipoles.
(4)
H Br
3
Turn over
surname names
Number Number
Level 3 GCE
Time 1 hour 45 minutes
Paper
reference 9CH0/02
2025 Predicted Paper
CHEMISTRY
Advanced
PAPER 2: Advanced Organic and Physical Chemistry
Ruler
Instructions
• Use black ink or black ball-point pen.
• Fill in the boxes at the top of this page with your name,
centre number and candidate number.
• Answer all questions.
• Answer the questions in the spaces provided
– there may be more space than you need.
• Show all your working in calculations and include units where appropriate.
Information
• The
• The
total mark for this paper is 90.
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 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.
Check your answers if you have time at the end.
• Good luck with your examination.
Turn over
, PRACTICE PAPER FOR 2026 SUMMER EXAMS
Answer ALL questions.
Some questions must be answered with a cross in a box .
If you change your mind about an answer, put a line through the box
and then mark your new answer with a cross
1 (a) How many molecules are present in 88 g of carbon dioxide (CO₂)?
[Molar mass of CO₂ = 44 g mol−1 Avogadro constant = 6.0 × 1023 mol−1]
(1)
A 6.0 × 1023
B 1.2 × 1024
C 2.4 × 1024
D 3.0 × 1023
(b) Which compound can exhibit E/Z isomerism?
(1)
A CH₂=CH₂
B CH₃CH=CHCH₃
C CH₃CH=CH₂
D CH₃C(CH₃)=CH₂
(c) When 4.00 g of methane (CH₄) is completely burned, how many moles of carbon dioxide are
produced? (Molar mass of CH₄ = 16 g mol⁻¹)
CH₄ + 2O₂ → CO₂ + 2H₂O
(1)
A 0.250 mol
B 0.500 mol
C 0.500 mol
D 1.000 mol
(Total for Question 1 = 3 marks)
2
, PRACTICE PAPER FOR 2026 SUMMER EXAMS
2. Alkenes undergo electrophilic addition reactions with hydrogen halides such as
hydrogen bromide (HBr).
(a) Complete the mechanism for the reaction between 3 methyl-2-pentene and
hydrogen bromide for the formation of 3-bromo-3-methylpentane.
Include curly arrows, and relevant lone pairs and dipoles.
(4)
H Br
3
Turn over
