Tuesday 12 May 2026 – Morning
AS Level Chemistry A
H032/01 Breadth in chemistry
Time allowed: 1 hour 30 minutes
You must have:
* 2 6 4 6 0 4 4 5 5 0 *
• the Data Sheet for Chemistry A
You can use:
• a scientific or graphical calculator
• an HB pencil
* H 0 3 2 0 1 *
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.
© Cambridge OCR 2026 [601/5256/4] Cambridge OCR is an exempt Charity
DC (ST/SW) 365997/8 Turn over
, 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 Sodium, aluminium, sulfur and chlorine are elements in Period 3 which form ionic compounds.
Predict the ionic charges from the position of the elements in the periodic table.
Na Al S Cl
A 1– 3– 2– 1–
B 1+ 3+ 6+ 7+
C 1+ 3+ 2– 1–
D 1– 5+ 2+ 1+
Your answer [1]
2 What is the number of nitrogen atoms in 0.5000 mol of NH4NO3?
A 3.010 × 1023
B 6.020 × 1023
C 1.204 × 1024
D 2.709 × 1024
Your answer [1]
3 What is the formula of iron(II) chlorate(V)?
A Fe(Cl O3)2
B Fe2Cl O5
C Fe(Cl O5)2
D Fe2(Cl O3)3
Your answer [1]
© Cambridge OCR 2026
, 3
4 Which row shows the atomic structure of 65Cu+?
Protons Neutrons Electrons
A 29 36 27
B 29 36 28
C 30 35 29
D 36 29 35
Your answer [1]
5 An excess of calcium metal reacts with 100 cm3 of 0.400 mol dm–3 hydrochloric acid, HCl (aq) as
shown below.
Ca(s) + 2HCl (aq) CaCl 2(aq) + H2(g)
What is the volume of hydrogen gas produced at RTP?
A 240 cm3
B 480 cm3
C 960 cm3
D 1200 cm3
Your answer [1]
6 Hydrated zinc sulfate, ZnSO4•xH2O, contains 43.8% water by mass.
What is the value of x?
A 3
B 5
C 7
D 10
Your answer [1]
© Cambridge OCR 2026 Turn over
AS Level Chemistry A
H032/01 Breadth in chemistry
Time allowed: 1 hour 30 minutes
You must have:
* 2 6 4 6 0 4 4 5 5 0 *
• the Data Sheet for Chemistry A
You can use:
• a scientific or graphical calculator
• an HB pencil
* H 0 3 2 0 1 *
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.
© Cambridge OCR 2026 [601/5256/4] Cambridge OCR is an exempt Charity
DC (ST/SW) 365997/8 Turn over
, 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 Sodium, aluminium, sulfur and chlorine are elements in Period 3 which form ionic compounds.
Predict the ionic charges from the position of the elements in the periodic table.
Na Al S Cl
A 1– 3– 2– 1–
B 1+ 3+ 6+ 7+
C 1+ 3+ 2– 1–
D 1– 5+ 2+ 1+
Your answer [1]
2 What is the number of nitrogen atoms in 0.5000 mol of NH4NO3?
A 3.010 × 1023
B 6.020 × 1023
C 1.204 × 1024
D 2.709 × 1024
Your answer [1]
3 What is the formula of iron(II) chlorate(V)?
A Fe(Cl O3)2
B Fe2Cl O5
C Fe(Cl O5)2
D Fe2(Cl O3)3
Your answer [1]
© Cambridge OCR 2026
, 3
4 Which row shows the atomic structure of 65Cu+?
Protons Neutrons Electrons
A 29 36 27
B 29 36 28
C 30 35 29
D 36 29 35
Your answer [1]
5 An excess of calcium metal reacts with 100 cm3 of 0.400 mol dm–3 hydrochloric acid, HCl (aq) as
shown below.
Ca(s) + 2HCl (aq) CaCl 2(aq) + H2(g)
What is the volume of hydrogen gas produced at RTP?
A 240 cm3
B 480 cm3
C 960 cm3
D 1200 cm3
Your answer [1]
6 Hydrated zinc sulfate, ZnSO4•xH2O, contains 43.8% water by mass.
What is the value of x?
A 3
B 5
C 7
D 10
Your answer [1]
© Cambridge OCR 2026 Turn over
