*1861115269*
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 24 pages.
ADVICE
• Read each question carefully before you start your answer.
© OCR 2025 [601/8687/2] DC (WW/CB) 351885/3
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 Which part of the Periodic Table contains the least reactive non-metals?
C D
A B
Your answer
2 Which gas in the atmosphere causes acid rain?
A Carbon monoxide
B Hydrogen
C Oxygen
D Sulfur dioxide
Your answer
3 When is electrolysis used to extract a metal from its ore?
A The metal dissolves in water.
B The metal has a high melting point.
C The metal is in high demand.
D The metal is very reactive.
© OCR 2025
, 3
Your answer
4 The diagram shows the stages in a life-cycle assessment.
Disposal Raw materials
Use Manufacture
X
What is stage X?
A Consumer research
B Design of the product
C Processing of the raw materials
D Transportation of the product
Your answer
5 Part of the reactivity series is shown below.
Aluminium most reactive
Carbon
Tin
Lead least reactive
Which metal(s) are produced when their metal oxides are heated with carbon?
A Aluminium only
B Aluminium and lead
C Tin and lead
D Tin only
Your answer
6 When marble chips react with an acid, they produce a colourless solution and a gas.
© OCR 2025 Turn over
, 4
Which method is used to determine the rate of reaction?
A A disappearing cross experiment
B Gas chromatography
C Measuring the mass loss using a balance
D Measuring the volume of solution produced
Your answer
7 Which Group 7 element is a red-brown liquid at room temperature?
A Fluorine
B Chlorine
C Bromine
D Iodine
Your answer
8 Desalination is the removal of salt from seawater to produce drinking water.
The seawater is heated and the water vapour condensed and collected.
Which separation technique is used to produce drinking water in desalination?
A Chromatography
B Crystallisation
C Distillation
D Filtration
Your answer
9 The equation shows a reaction that has reached dynamic equilibrium.
N2(g) + 3H2(g) 2NH3(g)
Which statement explains why this reaction is a dynamic equilibrium?
A N2 and H2 are gases.
B The rates of the forward and reverse reactions are equal.
© OCR 2025
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 24 pages.
ADVICE
• Read each question carefully before you start your answer.
© OCR 2025 [601/8687/2] DC (WW/CB) 351885/3
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 Which part of the Periodic Table contains the least reactive non-metals?
C D
A B
Your answer
2 Which gas in the atmosphere causes acid rain?
A Carbon monoxide
B Hydrogen
C Oxygen
D Sulfur dioxide
Your answer
3 When is electrolysis used to extract a metal from its ore?
A The metal dissolves in water.
B The metal has a high melting point.
C The metal is in high demand.
D The metal is very reactive.
© OCR 2025
, 3
Your answer
4 The diagram shows the stages in a life-cycle assessment.
Disposal Raw materials
Use Manufacture
X
What is stage X?
A Consumer research
B Design of the product
C Processing of the raw materials
D Transportation of the product
Your answer
5 Part of the reactivity series is shown below.
Aluminium most reactive
Carbon
Tin
Lead least reactive
Which metal(s) are produced when their metal oxides are heated with carbon?
A Aluminium only
B Aluminium and lead
C Tin and lead
D Tin only
Your answer
6 When marble chips react with an acid, they produce a colourless solution and a gas.
© OCR 2025 Turn over
, 4
Which method is used to determine the rate of reaction?
A A disappearing cross experiment
B Gas chromatography
C Measuring the mass loss using a balance
D Measuring the volume of solution produced
Your answer
7 Which Group 7 element is a red-brown liquid at room temperature?
A Fluorine
B Chlorine
C Bromine
D Iodine
Your answer
8 Desalination is the removal of salt from seawater to produce drinking water.
The seawater is heated and the water vapour condensed and collected.
Which separation technique is used to produce drinking water in desalination?
A Chromatography
B Crystallisation
C Distillation
D Filtration
Your answer
9 The equation shows a reaction that has reached dynamic equilibrium.
N2(g) + 3H2(g) 2NH3(g)
Which statement explains why this reaction is a dynamic equilibrium?
A N2 and H2 are gases.
B The rates of the forward and reverse reactions are equal.
© OCR 2025
