Monday 19 May 2025 – Morning
GCSE (9–1) Chemistry A (Gateway Science)
J248/01 (Foundation Tier)
Time allowed: 1 hour 45 minutes
You must have:
• a ruler (cm/mm)
• the Data Sheet for GCSE (9–1) Chemistry A (inside
this document)
You can use:
F
• a scientific or graphical calculator
• an HB pe
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 28 pages.
ADVICE
• Read each question carefully before you start your answer.
OCR GCSE Chemistry A (Gateway Science)
J248/01 (Foundation Tier) Question Paper
and Mark Scheme summer 2025
, 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 Which state of matter is shown in the particle model diagram?
A Aqueous
B Gas
C Liquid
D Solid
Your answer [1]
2 What is the part of the atom labelled X?
X
A Electron
B Neutron
C Nucleus
D Proton
Your answer [1]
© OCR 2025
, 3
3 What is the typical radius of an atom?
A 1 × 10–10 m
B 1 × 10–1 m
C 1 × 101 m
D 1 × 1010 m
Your answer [1]
4 Which type of molecule is shown in the diagram?
H H
C C
H Cl n
A Alkane
B Alkene
C Monomer
D Polymer
Your answer [1]
5 What is meant by activation energy?
A The maximum amount of energy needed to end a reaction.
B The maximum amount of energy needed to start a reaction.
C The minimum amount of energy needed to end a reaction.
D The minimum amount of energy needed to start a reaction.
Your answer [1]
© OCR 2025 Turn over
, 4
6 How did Mendeleev order the elements in his version of the Periodic Table?
A Decreasing atomic mass
B Decreasing atomic number
C Increasing atomic mass
D Increasing atomic number
Your answer [1]
7 Fluorine has a melting point of –220 °C and a boiling point of –188 °C.
What is the state of fluorine at 25 °C?
A Aqueous
B Gas
C Liquid
D Solid
Your answer [1]
8 An element has an electronic arrangement 2.8.1.
Which section of the Periodic Table is the element in?
C
A D
B
Your answer [1]
© OCR 2025
GCSE (9–1) Chemistry A (Gateway Science)
J248/01 (Foundation Tier)
Time allowed: 1 hour 45 minutes
You must have:
• a ruler (cm/mm)
• the Data Sheet for GCSE (9–1) Chemistry A (inside
this document)
You can use:
F
• a scientific or graphical calculator
• an HB pe
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 28 pages.
ADVICE
• Read each question carefully before you start your answer.
OCR GCSE Chemistry A (Gateway Science)
J248/01 (Foundation Tier) Question Paper
and Mark Scheme summer 2025
, 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 Which state of matter is shown in the particle model diagram?
A Aqueous
B Gas
C Liquid
D Solid
Your answer [1]
2 What is the part of the atom labelled X?
X
A Electron
B Neutron
C Nucleus
D Proton
Your answer [1]
© OCR 2025
, 3
3 What is the typical radius of an atom?
A 1 × 10–10 m
B 1 × 10–1 m
C 1 × 101 m
D 1 × 1010 m
Your answer [1]
4 Which type of molecule is shown in the diagram?
H H
C C
H Cl n
A Alkane
B Alkene
C Monomer
D Polymer
Your answer [1]
5 What is meant by activation energy?
A The maximum amount of energy needed to end a reaction.
B The maximum amount of energy needed to start a reaction.
C The minimum amount of energy needed to end a reaction.
D The minimum amount of energy needed to start a reaction.
Your answer [1]
© OCR 2025 Turn over
, 4
6 How did Mendeleev order the elements in his version of the Periodic Table?
A Decreasing atomic mass
B Decreasing atomic number
C Increasing atomic mass
D Increasing atomic number
Your answer [1]
7 Fluorine has a melting point of –220 °C and a boiling point of –188 °C.
What is the state of fluorine at 25 °C?
A Aqueous
B Gas
C Liquid
D Solid
Your answer [1]
8 An element has an electronic arrangement 2.8.1.
Which section of the Periodic Table is the element in?
C
A D
B
Your answer [1]
© OCR 2025
