lOMoAR cPSD| 56342273
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
June 2025 Time allowed: 2 hours
Materials For Examiner’s Use
For this paper you must have:
• 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
Instructions 2
• Use black ink or black ball-point pen.
• Fill in the boxes at the top of this page. 3
• Answer all questions.
• You must answer the questions in the spaces provided. Do not write outside the 4
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 5
this book. Write the question number against your answer(s).
• All working must be shown. 6
• Do all rough work in this book. Cross through any work you do not want to
7
be marked.
8
Information
• The marks for questions are shown in brackets.
TOTAL
• The maximum mark for this paper is 105.
, lOMoAR cPSD| 56342273
2
Do not write
outside the
box
*JUN227405101* IB/M/Jun22/E11 7405/1
, lOMoAR cPSD| 56342273
3
Do not write
outside the
box
There are no questions printed on this page
DO NOT WRITE ON THIS PAGE
ANSWER IN THE SPACES PROVIDED
, lOMoAR cPSD| 56342273
4
Do not write
outside the
box
*02*
Answer all questions in the spaces provided.
0 1 This question is about equilibria.
0 1 .1
Give two features of a reaction in dynamic equilibrium.
[2 marks]
Feature 1
Feature 2
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
June 2025 Time allowed: 2 hours
Materials For Examiner’s Use
For this paper you must have:
• 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
Instructions 2
• Use black ink or black ball-point pen.
• Fill in the boxes at the top of this page. 3
• Answer all questions.
• You must answer the questions in the spaces provided. Do not write outside the 4
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 5
this book. Write the question number against your answer(s).
• All working must be shown. 6
• Do all rough work in this book. Cross through any work you do not want to
7
be marked.
8
Information
• The marks for questions are shown in brackets.
TOTAL
• The maximum mark for this paper is 105.
, lOMoAR cPSD| 56342273
2
Do not write
outside the
box
*JUN227405101* IB/M/Jun22/E11 7405/1
, lOMoAR cPSD| 56342273
3
Do not write
outside the
box
There are no questions printed on this page
DO NOT WRITE ON THIS PAGE
ANSWER IN THE SPACES PROVIDED
, lOMoAR cPSD| 56342273
4
Do not write
outside the
box
*02*
Answer all questions in the spaces provided.
0 1 This question is about equilibria.
0 1 .1
Give two features of a reaction in dynamic equilibrium.
[2 marks]
Feature 1
Feature 2
