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 2 Organic and Physical Chemistry
Tuesday 9 June 2026 Morning 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) Question Mark
• a ruler with millimetre measurements 1
• a scientific calculator, which you are expected to use where appropriate.
2
Instructions 3
• Use black ink or black ball-point pen. 4
• Fill in the boxes at the top of this page. 5
• Answer all questions.
• You must answer the questions in the spaces provided. Do not write outside 6
the box around each page or on blank pages. 7
• If you need extra space for your answer(s), use the lined pages at the end of 8
this book. Write the question number against your answer(s).
9
• All working must be shown.
• Do all rough work in this book. Cross through any work you do not want to 10
be marked. TOTAL
Information
• The marks for questions are shown in brackets.
• The maximum mark for this paper is 105.
*jun *
IB/M/Jun26/G4005/E7 7405/2
, 2
Do not write
outside the
Answer all questions in the spaces provided. box
0 1 The rate of hydrolysis of 1-bromobutane can be investigated using this method.
• Add 5 drops of 1-bromobutane to a test tube containing 5 cm3 of ethanol.
• Place the test tube in a water bath at 50 °C
• Place a second test tube containing 5 cm3 of an aqueous solution of silver nitrate in
the water bath.
• After 1 minute add the silver nitrate to the mixture of 1-bromobutane and ethanol
and start a timer.
• Record the time taken for a precipitate to appear in the test tube.
0 1 . 1 State the meaning of the term hydrolysis.
[1 mark]
0 1 . 2 Suggest the role of the ethanol in this investigation.
[1 mark]
0 1 . 3 Give a reason why the reagents need to be warmed.
Suggest why a water bath, rather than a Bunsen burner, is used to warm the
reagents.
[2 marks]
Reason
Suggestion
*02*
IB/M/Jun26/7405/2
, 3
Do not write
outside the
0 1 . 4 The experiment is repeated using 1-iodobutane instead of 1-bromobutane. box
Identify two observations that will be different.
Explain why these observations are different.
[4 marks]
Observation 1
Explanation
Observation 2
Explanation
Question 1 continues on the next page
Turn over ►
*03*
IB/M/Jun26/7405/2
, 4
Do not write
outside the
A chloroalkane, RCl, reacts with hydroxide ions. box
RCl + OH– → ROH + Cl–
Table 1 shows data from an investigation into the rate of this reaction.
Table 1
Initial [RCl] / mol dm–3 Initial [OH–] / mol dm–3 Initial rate / mol dm–3 s–1
5.00 × 10–2 5.00 × 10–2 3.10 × 10–3
1.00 × 10–1 5.00 × 10–2 6.20 × 10–3
5.00 × 10–2 2.50 × 10–2 1.55 × 10–3
0 1 . 5 Deduce the rate equation for this reaction.
Calculate the rate constant and state its units.
[4 marks]
Rate equation
Rate constant Units
*04*
IB/M/Jun26/7405/2
Centre number Candidate number
Surname
Forename(s)
Candidate signature
I declare this is my own work.
A-level
CHEMISTRY
Paper 2 Organic and Physical Chemistry
Tuesday 9 June 2026 Morning 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) Question Mark
• a ruler with millimetre measurements 1
• a scientific calculator, which you are expected to use where appropriate.
2
Instructions 3
• Use black ink or black ball-point pen. 4
• Fill in the boxes at the top of this page. 5
• Answer all questions.
• You must answer the questions in the spaces provided. Do not write outside 6
the box around each page or on blank pages. 7
• If you need extra space for your answer(s), use the lined pages at the end of 8
this book. Write the question number against your answer(s).
9
• All working must be shown.
• Do all rough work in this book. Cross through any work you do not want to 10
be marked. TOTAL
Information
• The marks for questions are shown in brackets.
• The maximum mark for this paper is 105.
*jun *
IB/M/Jun26/G4005/E7 7405/2
, 2
Do not write
outside the
Answer all questions in the spaces provided. box
0 1 The rate of hydrolysis of 1-bromobutane can be investigated using this method.
• Add 5 drops of 1-bromobutane to a test tube containing 5 cm3 of ethanol.
• Place the test tube in a water bath at 50 °C
• Place a second test tube containing 5 cm3 of an aqueous solution of silver nitrate in
the water bath.
• After 1 minute add the silver nitrate to the mixture of 1-bromobutane and ethanol
and start a timer.
• Record the time taken for a precipitate to appear in the test tube.
0 1 . 1 State the meaning of the term hydrolysis.
[1 mark]
0 1 . 2 Suggest the role of the ethanol in this investigation.
[1 mark]
0 1 . 3 Give a reason why the reagents need to be warmed.
Suggest why a water bath, rather than a Bunsen burner, is used to warm the
reagents.
[2 marks]
Reason
Suggestion
*02*
IB/M/Jun26/7405/2
, 3
Do not write
outside the
0 1 . 4 The experiment is repeated using 1-iodobutane instead of 1-bromobutane. box
Identify two observations that will be different.
Explain why these observations are different.
[4 marks]
Observation 1
Explanation
Observation 2
Explanation
Question 1 continues on the next page
Turn over ►
*03*
IB/M/Jun26/7405/2
, 4
Do not write
outside the
A chloroalkane, RCl, reacts with hydroxide ions. box
RCl + OH– → ROH + Cl–
Table 1 shows data from an investigation into the rate of this reaction.
Table 1
Initial [RCl] / mol dm–3 Initial [OH–] / mol dm–3 Initial rate / mol dm–3 s–1
5.00 × 10–2 5.00 × 10–2 3.10 × 10–3
1.00 × 10–1 5.00 × 10–2 6.20 × 10–3
5.00 × 10–2 2.50 × 10–2 1.55 × 10–3
0 1 . 5 Deduce the rate equation for this reaction.
Calculate the rate constant and state its units.
[4 marks]
Rate equation
Rate constant Units
*04*
IB/M/Jun26/7405/2
