SUMMER 2026
PREDICTED PAPER
OCR GCSE (9–1) Chemistry A (Gateway
Science) J248/01 (Foundation Tier)
Time allowed: 1 hour 45 minutes
You must have:
• a ruler (cm/mm)
F
• the Data Sheet for GCSE (9–1) Chemistry A (inside
this document)
You can use:
a scientific or graphical calculator
• an HB pencil
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 90.
• 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 21 pages.
Note: In the worked solutions, marks for each question are represented using different colours
within the answers. This helps indicate the sections of the solution where marks are typically
awarded.
Turn over
for more: tyrionpapers.com
, 2
Section A
You should spend a maximum of 30 minutes on this section.
Write your answer to each question in the box provided.
1. An atom of carbon has 6 protons and 6 neutrons. What is the mass number?
A 3
B 6
C 12
D 18
Your answer [1]
2. Potassium chloride has the formula KCl. The chloride ion is Cl⁻.
What is the charge on the potassium ion?
A 2+
B 1−
C 2−
D 1+
Your answer [1]
3. A solution has a pH of 1. Which description is correct?
A Weakly alkaline
B Strongly alkaline
C Neutral
D Strongly acidic
Your answer [1]
for more: tyrionpapers.com
, 3
4. A student gets an unexpected result. What is the most scientifically valid next step?
A Ignore the result and use the expected value.
B Change the result to match the theory.
C Repeat the experiment to check if the result is reproducible.
D Ask another student to do it instead.
Your answer [1]
5. 56 g of iron reacts to make 88 g of iron sulfide. How much iron sulfide is made from 28 g of iron?
A 22 g
B 44 g
C 66 g
D 176 g
Your answer [1]
6. Why is silver more effective as nanoparticles than as a bulk material in antibacterial products?
A Nanoparticles are heavier.
B Nanoparticles have a larger particle size.
C Nanoparticles have a much greater surface area to volume ratio.
D Nanoparticles conduct electricity better.
Your answer [1]
7. What did Mendeleev do differently from earlier scientists when arranging the Periodic Table?
A He ordered elements alphabetically.
B He ignored elements that did not fit.
C He swapped some elements and left gaps for undiscovered ones.
D He grouped elements only by colour.
Your answer [1]
for more: tyrionpapers.com
PREDICTED PAPER
OCR GCSE (9–1) Chemistry A (Gateway
Science) J248/01 (Foundation Tier)
Time allowed: 1 hour 45 minutes
You must have:
• a ruler (cm/mm)
F
• the Data Sheet for GCSE (9–1) Chemistry A (inside
this document)
You can use:
a scientific or graphical calculator
• an HB pencil
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 90.
• 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 21 pages.
Note: In the worked solutions, marks for each question are represented using different colours
within the answers. This helps indicate the sections of the solution where marks are typically
awarded.
Turn over
for more: tyrionpapers.com
, 2
Section A
You should spend a maximum of 30 minutes on this section.
Write your answer to each question in the box provided.
1. An atom of carbon has 6 protons and 6 neutrons. What is the mass number?
A 3
B 6
C 12
D 18
Your answer [1]
2. Potassium chloride has the formula KCl. The chloride ion is Cl⁻.
What is the charge on the potassium ion?
A 2+
B 1−
C 2−
D 1+
Your answer [1]
3. A solution has a pH of 1. Which description is correct?
A Weakly alkaline
B Strongly alkaline
C Neutral
D Strongly acidic
Your answer [1]
for more: tyrionpapers.com
, 3
4. A student gets an unexpected result. What is the most scientifically valid next step?
A Ignore the result and use the expected value.
B Change the result to match the theory.
C Repeat the experiment to check if the result is reproducible.
D Ask another student to do it instead.
Your answer [1]
5. 56 g of iron reacts to make 88 g of iron sulfide. How much iron sulfide is made from 28 g of iron?
A 22 g
B 44 g
C 66 g
D 176 g
Your answer [1]
6. Why is silver more effective as nanoparticles than as a bulk material in antibacterial products?
A Nanoparticles are heavier.
B Nanoparticles have a larger particle size.
C Nanoparticles have a much greater surface area to volume ratio.
D Nanoparticles conduct electricity better.
Your answer [1]
7. What did Mendeleev do differently from earlier scientists when arranging the Periodic Table?
A He ordered elements alphabetically.
B He ignored elements that did not fit.
C He swapped some elements and left gaps for undiscovered ones.
D He grouped elements only by colour.
Your answer [1]
for more: tyrionpapers.com
