OCR SUMMER 2026
PREDICTED PAPER
A Level Chemistry A
H432/01 Periodic table, elements and physical chemistry
Time allowed: 2 hours 15 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 100.
• The marks for each question are shown in brackets [ ].
• Quality of extended response will be assessed in questions marked with an asterisk (*).
• This document has 32 pages.
ADVICE
• Read each question carefully before you start your answer.
for more: tyrionpapers.com
Turn over
, 2
Section A
You should spend a maximum of 20 minutes on this section.
Write your answer to each question in the box provided.
1 Which of the following shows the correct electron configuration of nitrogen
(1s²2s²2p³) in its p-orbitals?
p orbital 1 p orbital 2 p orbital 3
A ↑↓ ↑
↑ ↑ ↑
B
↑↓ ↑ ↑
C
D ↑↓ ↑↓ ↑
Your answer [1]
2 Titanium can be extracted by several methods. Which process has the highest
atom economy for titanium produced?
(Ti = 48, O = 16, C = 12, Cl = 35.5, Mg = 24)
A TiO₂ + 2C → Ti + 2CO₂
B TiCl₄ + 2Mg → Ti + 2MgCl₂
C 2TiO₂ → 2Ti + 2O₂
D TiO₂ + 2Cl₂ + 2C → TiCl₄ + 2CO₂
Your answer [1]
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, 3
3 The following reactions all involve nitrogen compounds. Which represents
disproportionation?
A 4NH₃ + 3O₂ → 2N₂ + 6H₂O
B 3HNO₂ → HNO₃ + 2NO + H₂O
C N₂ + 3H₂ → 2NH₃
D 2NO + O₂ → 2NO₂
Your answer [1]
4 Which sample contains the greatest number of molecules?
A 20.0 g of HF
B 36.0 g of HCl
C 81.0 g of HBr
D 64.0 g of SO₂
Your answer [1]
5 The successive ionisation energies of an element are shown below.
Ionisation 1st 2nd 3rd 4th 5th
Energy / kJ mol⁻¹ 578 1817 2745 11578 14831
Which element is this?
A Mg
B Al
C Si
D P
Your answer [1]
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, 4
6 Which of the following molecules has a bond angle of approximately 107°?
A CO₂
B BCI₃
C NH₃
D H₂O
Your answer [1]
7 Which of the following statements about electrode potentials is correct?
A Standard electrode potentials are measured at 25°C, 2 mol dm⁻³ and 1 atm
B A more positive E° means the species is a stronger reducing agent
C Increasing the concentration of Cu²⁺ in a Cu²⁺/Cu half-cell makes E more positive
D Standard electrode potentials can predict rate of reaction
Your answer [1]
8 Which row correctly describes how a catalyst affects a chemical reaction?
Activation Energy Rate ΔH of reaction
A Decreases Increases Unchanged
B Decreases Increases Decreases
C Unchanged Increases Unchanged
D Decreases Unchanged Decreases
Your answer [1]
for more: tyrionpapers.com
PREDICTED PAPER
A Level Chemistry A
H432/01 Periodic table, elements and physical chemistry
Time allowed: 2 hours 15 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 100.
• The marks for each question are shown in brackets [ ].
• Quality of extended response will be assessed in questions marked with an asterisk (*).
• This document has 32 pages.
ADVICE
• Read each question carefully before you start your answer.
for more: tyrionpapers.com
Turn over
, 2
Section A
You should spend a maximum of 20 minutes on this section.
Write your answer to each question in the box provided.
1 Which of the following shows the correct electron configuration of nitrogen
(1s²2s²2p³) in its p-orbitals?
p orbital 1 p orbital 2 p orbital 3
A ↑↓ ↑
↑ ↑ ↑
B
↑↓ ↑ ↑
C
D ↑↓ ↑↓ ↑
Your answer [1]
2 Titanium can be extracted by several methods. Which process has the highest
atom economy for titanium produced?
(Ti = 48, O = 16, C = 12, Cl = 35.5, Mg = 24)
A TiO₂ + 2C → Ti + 2CO₂
B TiCl₄ + 2Mg → Ti + 2MgCl₂
C 2TiO₂ → 2Ti + 2O₂
D TiO₂ + 2Cl₂ + 2C → TiCl₄ + 2CO₂
Your answer [1]
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, 3
3 The following reactions all involve nitrogen compounds. Which represents
disproportionation?
A 4NH₃ + 3O₂ → 2N₂ + 6H₂O
B 3HNO₂ → HNO₃ + 2NO + H₂O
C N₂ + 3H₂ → 2NH₃
D 2NO + O₂ → 2NO₂
Your answer [1]
4 Which sample contains the greatest number of molecules?
A 20.0 g of HF
B 36.0 g of HCl
C 81.0 g of HBr
D 64.0 g of SO₂
Your answer [1]
5 The successive ionisation energies of an element are shown below.
Ionisation 1st 2nd 3rd 4th 5th
Energy / kJ mol⁻¹ 578 1817 2745 11578 14831
Which element is this?
A Mg
B Al
C Si
D P
Your answer [1]
for more: tyrionpapers.com
, 4
6 Which of the following molecules has a bond angle of approximately 107°?
A CO₂
B BCI₃
C NH₃
D H₂O
Your answer [1]
7 Which of the following statements about electrode potentials is correct?
A Standard electrode potentials are measured at 25°C, 2 mol dm⁻³ and 1 atm
B A more positive E° means the species is a stronger reducing agent
C Increasing the concentration of Cu²⁺ in a Cu²⁺/Cu half-cell makes E more positive
D Standard electrode potentials can predict rate of reaction
Your answer [1]
8 Which row correctly describes how a catalyst affects a chemical reaction?
Activation Energy Rate ΔH of reaction
A Decreases Increases Unchanged
B Decreases Increases Decreases
C Unchanged Increases Unchanged
D Decreases Unchanged Decreases
Your answer [1]
for more: tyrionpapers.com
