OCR SUMMER 2026
PREDICTED PAPER
AS Level Chemistry A
H032/01 Breadth in chemistry
Time allowed: 1 hour 30 minutes
You must have:
• the Data Sheet for Chemistry A
You can use:
a scientific or graphical calculator
a ruler (cm/mm)
Please write clearly in black ink. Do not write in the barcodes.
Centre number Candidate number
First name(s)
Last name
INSTRUCTIONS
• Use black ink. You can use an HB pencil, but only for graphs and diagrams.
• Write your answer to each question in the space provided. If you need extra space use
the lined pages at the end of this booklet. The question numbers must be clearly shown.
• Answer all the questions.
• Where appropriate, your answer should be supported with working. Marks might be
given for using a correct method, even if your answer is wrong.
INFORMATION
• The total mark for this paper is 70.
• The marks for each question are shown in brackets [ ].
• This document has 24 pages.
ADVICE
• Read each question carefully before you start your answer.
Turn over
for more: tyrionpapers.com
, 2
Section A
You should spend a maximum of 25 minutes on this section.
Write your answer to each question in the box provided.
1 Which row correctly shows the atomic structure of ³¹P³⁻?
Protons Neutrons Electrons
A 15 16 12
B 16 15 13
C 15 16 18
D 15 15 18
Your answer [1]
2 A compound contains 32.4% sodium, 22.5% sulfur and 45.1% oxygen by mass.
What is its empirical formula?
A NaSO₂
B Na₂SO₃
C Na₂SO₄
D NaSO₃
Your answer [1]
for more: tyrionpapers.com
, 3
3 Methane burns in oxygen:
CH₄(g) + 2O₂(g) → CO₂(g) + 2H₂O(g)
Which volumes of CH₄ and O₂ produce the largest volume of CO₂? All volumes at
RTP.
CH₄ (dm³) O₂ (dm³)
A 1,00 4.00
B 2.00 3.00
C 3.00 2.00
D 4.00 1.00
Your answer [1]
4 Which molecule has the smallest bond angle?
A CH₄
B NH₃
C H₂O
D BF₃
Your answer [1]
5 Which statement about the first ionisation energies across Period 3 is correct?
A First ionisation energy increases uniformly from Na to Ar
B Mg has a higher first ionisation energy than Al because Mg has a more stable full
3s subshell
C P has a lower first ionisation energy than S because P has more protons
D First ionisation energy decreases from Na to Ar due to increased shielding
Your answer [1]
for more: tyrionpapers.com
PREDICTED PAPER
AS Level Chemistry A
H032/01 Breadth in chemistry
Time allowed: 1 hour 30 minutes
You must have:
• the Data Sheet for Chemistry A
You can use:
a scientific or graphical calculator
a ruler (cm/mm)
Please write clearly in black ink. Do not write in the barcodes.
Centre number Candidate number
First name(s)
Last name
INSTRUCTIONS
• Use black ink. You can use an HB pencil, but only for graphs and diagrams.
• Write your answer to each question in the space provided. If you need extra space use
the lined pages at the end of this booklet. The question numbers must be clearly shown.
• Answer all the questions.
• Where appropriate, your answer should be supported with working. Marks might be
given for using a correct method, even if your answer is wrong.
INFORMATION
• The total mark for this paper is 70.
• The marks for each question are shown in brackets [ ].
• This document has 24 pages.
ADVICE
• Read each question carefully before you start your answer.
Turn over
for more: tyrionpapers.com
, 2
Section A
You should spend a maximum of 25 minutes on this section.
Write your answer to each question in the box provided.
1 Which row correctly shows the atomic structure of ³¹P³⁻?
Protons Neutrons Electrons
A 15 16 12
B 16 15 13
C 15 16 18
D 15 15 18
Your answer [1]
2 A compound contains 32.4% sodium, 22.5% sulfur and 45.1% oxygen by mass.
What is its empirical formula?
A NaSO₂
B Na₂SO₃
C Na₂SO₄
D NaSO₃
Your answer [1]
for more: tyrionpapers.com
, 3
3 Methane burns in oxygen:
CH₄(g) + 2O₂(g) → CO₂(g) + 2H₂O(g)
Which volumes of CH₄ and O₂ produce the largest volume of CO₂? All volumes at
RTP.
CH₄ (dm³) O₂ (dm³)
A 1,00 4.00
B 2.00 3.00
C 3.00 2.00
D 4.00 1.00
Your answer [1]
4 Which molecule has the smallest bond angle?
A CH₄
B NH₃
C H₂O
D BF₃
Your answer [1]
5 Which statement about the first ionisation energies across Period 3 is correct?
A First ionisation energy increases uniformly from Na to Ar
B Mg has a higher first ionisation energy than Al because Mg has a more stable full
3s subshell
C P has a lower first ionisation energy than S because P has more protons
D First ionisation energy decreases from Na to Ar due to increased shielding
Your answer [1]
for more: tyrionpapers.com
