2025 AQA A-LEVEL CHEMISTRY Paper 1 Inorganic and
Physical Chemistry Question Paper & Mark Scheme (Merged)
Tuesday 10 June 2025 [VERIFIED]
Please write clearly in block capitals.
Centre number Candidate number
Surname
Forename(s)
Candidate signature
I declare this is my own work.
A-level
CHEMISTRY
Paper 1 Inorganic and Physical Chemistry
Tuesday 10 June 2025 Morning Time allowed: 2 hours
Materials
For this paper you must have: For Examiner’s Use
the Periodic Table/Data Booklet, provided as an insert (enclosed)
a ruler with millimetre measurements Question Mark
a scientific calculator, which you are expected to use where appropriate. 1
2
Instructions
Use black ink or black ball-point pen. 3
Fill in the boxes at the top of this page. 4
Answer all questions. 5
You must answer the questions in the spaces provided. Do not write outside
6
the box around each page or on blank pages.
If you need extra space for your answer(s), use the lined pages at the end of 7
this book. Write the question number against your answer(s). 8
All working must be shown.
TOTAL
Do all rough work in this book. Cross through any work you do not
want to be marked.
Information
The marks for questions are shown in brackets.
The maximum mark for this paper is 105.
7 405/1
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IB/M/Jun25/G4007/V8
, 2
Do not write
outside the
Answer all questions in the spaces provided. box
0 1 This question is about some Group 2 elements and their compounds.
0 1 . 1 Magnesium is reacted with titanium(IV) chloride to extract titanium metal.
Give the equation for this reaction.
State the role of magnesium in this reaction.
[2 marks]
Equation
Role of magnesium
0 1 . 2 Complete Table 1 by giving the formula of a suitable calcium compound for each use.
[2 marks]
Table 1
Use Formula of calcium compound
Decrease acidity of soil
Remove SO2 from flue gases in power stations
0 1 . 3 Magnesium hydroxide is used to relieve the symptoms of indigestion by neutralising
stomach acid.
Suggest why magnesium hydroxide is safer than sodium hydroxide as a treatment for
indigestion.
[1 mark]
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, 3
Do not write
outside the
An ionic compound of a Group 2 element dissolves in water to form solution X. box
Separate samples of solution X are tested to identify the ions.
Table 2 shows the observations.
Table 2
Reagent added Observation
Test 1 NaOH(aq) White precipitate
Test 2 HNO3(aq) and AgNO3(aq) Cream precipitate
0 1 . 4 Identify the Group 2 cation in solution X.
Give an ionic equation for the reaction that occurs in Test 1.
[2 marks]
Group 2 cation
Ionic equation
Question 1 continues on the next page
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, 4
Do not write
outside the
box
0 1 . 5 Identify the anion in solution X.
Give an ionic equation, including state symbols, for the reaction that occurs in Test 2.
Explain why AgNO3(aq) is acidified.
[3 marks]
Anion
Ionic equation
Explanation
0 1 . 6 Give one property of barium sulfate that makes it useful in hospitals.
[1 mark]
11
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IB/M/Jun25/7405/1
Physical Chemistry Question Paper & Mark Scheme (Merged)
Tuesday 10 June 2025 [VERIFIED]
Please write clearly in block capitals.
Centre number Candidate number
Surname
Forename(s)
Candidate signature
I declare this is my own work.
A-level
CHEMISTRY
Paper 1 Inorganic and Physical Chemistry
Tuesday 10 June 2025 Morning Time allowed: 2 hours
Materials
For this paper you must have: For Examiner’s Use
the Periodic Table/Data Booklet, provided as an insert (enclosed)
a ruler with millimetre measurements Question Mark
a scientific calculator, which you are expected to use where appropriate. 1
2
Instructions
Use black ink or black ball-point pen. 3
Fill in the boxes at the top of this page. 4
Answer all questions. 5
You must answer the questions in the spaces provided. Do not write outside
6
the box around each page or on blank pages.
If you need extra space for your answer(s), use the lined pages at the end of 7
this book. Write the question number against your answer(s). 8
All working must be shown.
TOTAL
Do all rough work in this book. Cross through any work you do not
want to be marked.
Information
The marks for questions are shown in brackets.
The maximum mark for this paper is 105.
7 405/1
tyrionpapers.com for m o r e resources
IB/M/Jun25/G4007/V8
, 2
Do not write
outside the
Answer all questions in the spaces provided. box
0 1 This question is about some Group 2 elements and their compounds.
0 1 . 1 Magnesium is reacted with titanium(IV) chloride to extract titanium metal.
Give the equation for this reaction.
State the role of magnesium in this reaction.
[2 marks]
Equation
Role of magnesium
0 1 . 2 Complete Table 1 by giving the formula of a suitable calcium compound for each use.
[2 marks]
Table 1
Use Formula of calcium compound
Decrease acidity of soil
Remove SO2 from flue gases in power stations
0 1 . 3 Magnesium hydroxide is used to relieve the symptoms of indigestion by neutralising
stomach acid.
Suggest why magnesium hydroxide is safer than sodium hydroxide as a treatment for
indigestion.
[1 mark]
tyrionpapers.com for more resources
IB/M/Jun25/7405/1
, 3
Do not write
outside the
An ionic compound of a Group 2 element dissolves in water to form solution X. box
Separate samples of solution X are tested to identify the ions.
Table 2 shows the observations.
Table 2
Reagent added Observation
Test 1 NaOH(aq) White precipitate
Test 2 HNO3(aq) and AgNO3(aq) Cream precipitate
0 1 . 4 Identify the Group 2 cation in solution X.
Give an ionic equation for the reaction that occurs in Test 1.
[2 marks]
Group 2 cation
Ionic equation
Question 1 continues on the next page
Turn over ►
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IB/M/Jun25/7405/1
, 4
Do not write
outside the
box
0 1 . 5 Identify the anion in solution X.
Give an ionic equation, including state symbols, for the reaction that occurs in Test 2.
Explain why AgNO3(aq) is acidified.
[3 marks]
Anion
Ionic equation
Explanation
0 1 . 6 Give one property of barium sulfate that makes it useful in hospitals.
[1 mark]
11
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IB/M/Jun25/7405/1
