Oxford Cambridge and RSA
Examinations Higher GCSECombined
Science Chemistry A Gateway
ScienceJ250/09: Paper 9 (Higher Tier)
General Certificate of Secondary
Education with marking scheme
, Oxford Cambridge and RSA
Monday 22 May 2023 – Morning
GCSE (9–1) Combined Science
(Chemistry) A (Gateway Science)
J250/09 Paper 9 (Higher Tier)
Time allowed: 1 hour 10 minutes
H
* 9 1 3 3 6 5 5 0 8 7 *
You must have:
• a ruler (cm/mm)
• the Data Sheet for GCSE (9–1) Combined Science
(Chemistry) A (inside this document)
You can use:
• a scientific or graphical calculator
• an HB pencil
* J 2 5 0 0 9 *
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 60.
• 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 20 pages.
ADVICE
• Read each question carefully before you start your answer.
© OCR 2023 [601/8687/2] OCR is an exempt Charity
DC (ST/CB) 333838/8 R 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 substance is described as pure by a scientist?
A A solution of sodium chloride
B An alloy
C Dilute sulfuric acid
D Distilled water
Your answer [1]
2 A metal oxide has the formula X2O, where X is a Group 1 metal.
The relative formula mass of the metal oxide is 94.2.
Relative atomic mass (Ar): O = 16.0
What is the name of X?
A Lithium
B Potassium
C Rubidium
D Sodium
Your answer [1]
© OCR 2023
, 3
3 Which gas bleaches damp litmus paper?
A Carbon dioxide
B Chlorine
C Hydrogen
D Oxygen
Your answer [1]
4 Copper carbonate reacts with dilute hydrochloric acid to form copper chloride, water and a gas.
What is the formula of the gas?
A C
B CO
C CO2
D CO3
Your answer [1]
5 Which row lists the material that has the weakest intermolecular forces?
Melting point
Material Structure
(°C)
A giant covalent 1713
B ionic compound 801
C metal 98
D polymer 105
Your answer [1]
© OCR 2023 Turn over
Examinations Higher GCSECombined
Science Chemistry A Gateway
ScienceJ250/09: Paper 9 (Higher Tier)
General Certificate of Secondary
Education with marking scheme
, Oxford Cambridge and RSA
Monday 22 May 2023 – Morning
GCSE (9–1) Combined Science
(Chemistry) A (Gateway Science)
J250/09 Paper 9 (Higher Tier)
Time allowed: 1 hour 10 minutes
H
* 9 1 3 3 6 5 5 0 8 7 *
You must have:
• a ruler (cm/mm)
• the Data Sheet for GCSE (9–1) Combined Science
(Chemistry) A (inside this document)
You can use:
• a scientific or graphical calculator
• an HB pencil
* J 2 5 0 0 9 *
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 60.
• 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 20 pages.
ADVICE
• Read each question carefully before you start your answer.
© OCR 2023 [601/8687/2] OCR is an exempt Charity
DC (ST/CB) 333838/8 R 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 substance is described as pure by a scientist?
A A solution of sodium chloride
B An alloy
C Dilute sulfuric acid
D Distilled water
Your answer [1]
2 A metal oxide has the formula X2O, where X is a Group 1 metal.
The relative formula mass of the metal oxide is 94.2.
Relative atomic mass (Ar): O = 16.0
What is the name of X?
A Lithium
B Potassium
C Rubidium
D Sodium
Your answer [1]
© OCR 2023
, 3
3 Which gas bleaches damp litmus paper?
A Carbon dioxide
B Chlorine
C Hydrogen
D Oxygen
Your answer [1]
4 Copper carbonate reacts with dilute hydrochloric acid to form copper chloride, water and a gas.
What is the formula of the gas?
A C
B CO
C CO2
D CO3
Your answer [1]
5 Which row lists the material that has the weakest intermolecular forces?
Melting point
Material Structure
(°C)
A giant covalent 1713
B ionic compound 801
C metal 98
D polymer 105
Your answer [1]
© OCR 2023 Turn over
