Oxford Cambridge and RSA
Friday 17 May 2024 – Morning
GCSE (9–1) Combined Science A
(Gateway Science)
J250/09 Chemistry (Higher Tier)
Time allowed: 1 hour 10 minutes
You must have:
• a ruler (cm/mm)
• the Data Sheet for GCSE (9–1) Combined Science A
H
(Chemistry) (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 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 is an exempt Charity
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 The diagram represents the particle model for a change in the arrangement of some particles.
Which row describes this change?
Type of change Explanation
A chemical The particles break up and then join together in a different way.
B chemical The particles stay the same but are arranged in a different way.
C physical The particles break up and then join together in a different way.
D physical The particles stay the same but are arranged in a different way.
Your answer [1]
2 Which element in the table is a non-metal?
Appearance at
Melting point (°C) Electrical conductivity
room temperature
A silver liquid –39 high
B orange-red solid 1083 high
C yellow solid 113 low
D silvery-white 3422 high
Your answer [1]
© OCR 2024
, 3
3 The graph shows how the temperature of two samples of a substance, Y and Z, changes as they melt from
solids to liquids.
Z
Temperature (°C)
Y
Time (minutes)
Which row describes Y and Z?
Y Z
A impure impure
B impure pure
C pure impure
D pure pure
Your answer [1]
4 This is the equation for the reaction between copper carbonate and dilute hydrochloric acid:
CuCO3(s) + 2HCl(aq) CuCl 2(…) + CO2(g) + H2O(l)
What is the state symbol for CuCl 2?
A aq
B g
C l
D s
Your answer [1]
© OCR 2024 Turn over
, 4
5 In which molecule is X an atom of carbon?
A X F B X
F F
C F D F
X F X F
F F
F
Your answer [1]
6 Boron, B, is in Group 3 of the Periodic Table and chlorine, Cl, is in Group 7 of the Periodic Table.
What is the formula of the compound formed when boron reacts with chlorine?
A BCl
B BCl3
C B3Cl
D B3Cl7
Your answer [1]
© OCR 2024
Friday 17 May 2024 – Morning
GCSE (9–1) Combined Science A
(Gateway Science)
J250/09 Chemistry (Higher Tier)
Time allowed: 1 hour 10 minutes
You must have:
• a ruler (cm/mm)
• the Data Sheet for GCSE (9–1) Combined Science A
H
(Chemistry) (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 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 is an exempt Charity
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 The diagram represents the particle model for a change in the arrangement of some particles.
Which row describes this change?
Type of change Explanation
A chemical The particles break up and then join together in a different way.
B chemical The particles stay the same but are arranged in a different way.
C physical The particles break up and then join together in a different way.
D physical The particles stay the same but are arranged in a different way.
Your answer [1]
2 Which element in the table is a non-metal?
Appearance at
Melting point (°C) Electrical conductivity
room temperature
A silver liquid –39 high
B orange-red solid 1083 high
C yellow solid 113 low
D silvery-white 3422 high
Your answer [1]
© OCR 2024
, 3
3 The graph shows how the temperature of two samples of a substance, Y and Z, changes as they melt from
solids to liquids.
Z
Temperature (°C)
Y
Time (minutes)
Which row describes Y and Z?
Y Z
A impure impure
B impure pure
C pure impure
D pure pure
Your answer [1]
4 This is the equation for the reaction between copper carbonate and dilute hydrochloric acid:
CuCO3(s) + 2HCl(aq) CuCl 2(…) + CO2(g) + H2O(l)
What is the state symbol for CuCl 2?
A aq
B g
C l
D s
Your answer [1]
© OCR 2024 Turn over
, 4
5 In which molecule is X an atom of carbon?
A X F B X
F F
C F D F
X F X F
F F
F
Your answer [1]
6 Boron, B, is in Group 3 of the Periodic Table and chlorine, Cl, is in Group 7 of the Periodic Table.
What is the formula of the compound formed when boron reacts with chlorine?
A BCl
B BCl3
C B3Cl
D B3Cl7
Your answer [1]
© OCR 2024
