plumiReaction mechanisms: AQA A‑Level Chemistry questions
AQA A-Level Chemistry past-paper questions on 3.3.1.2 Reaction mechanisms, 2008–2025, with mark schemes and examiner’s reports where available.
All papers
All years
Q03.5
The whole paper ↗
Loading the start of the question…
Loading the question…
Open the full PDFQ5(a)(i)
The whole paper ↗
Loading the start of the question…
Loading the question…
Open the full PDFQ8(a)(i)
The whole paper ↗
Loading the start of the question…
Loading the question…
Open the full PDFQ7(a)
The whole paper ↗
Loading the start of the question…
Loading the question…
Open the full PDFQ7(a)(ii)
The whole paper ↗
Loading the start of the question…
Loading the question…
Open the full PDFQ6(a)(i)
The whole paper ↗
Loading the start of the question…
Loading the question…
Open the full PDFQ10(d)
The whole paper ↗
Loading the start of the question…
Loading the question…
Open the full PDFQ1(a)(iii)
The whole paper ↗
Loading the start of the question…
Loading the question…
Open the full PDFQ3(e)
The whole paper ↗
Loading the start of the question…
Loading the question…
Open the full PDF
All 9 questions on Reaction mechanisms, as a list
- June 2024, Paper 3, Q03.5 (2 marks): 2-Methylpent-4-en-2-ol decomposes in a similar way to but-3-en-1-ol, to produce an alkene and a carbonyl compound. Deduce the structures of the alkene and the c
- June 2014, CHEM2 (old spec), Q5(a)(i) (4 marks): Write an equation for each of the following steps in the mechanism for the reaction of CHF3 with Cl2 [4 marks] Initiation step First propagation step Second pro
- June 2014, CHEM2 (old spec), Q8(a)(i) (2 marks): Use your knowledge of organic reaction mechanisms to complete the mechanism for this step by drawing two curly arrows on the following equation. [2 marks] Br- H
- June 2013, CHEM2 (old spec), Q7(a) (4 marks): Write an equation for each of the following steps in the mechanism for the reaction of chloromethane (CH3Cl) with chlorine to form dichloromethane (CH2Cl2). Ini
- January 2013, CHEM2 (old spec), Q7(a)(ii) (4 marks): Write equations for the following steps in the mechanism for the reaction of fluorine with fluoromethane (CH3F) to form difluoromethane (CH2F2). Initiation step
- June 2012, CHEM2 (old spec), Q6(a)(i) (3 marks): Write an equation for each of the following steps in the mechanism for this reaction. Initiation step First propagation step Second propagation step (3 marks)
- January 2012, CHEM2 (old spec), Q10(d) (5 marks): Cyclohexane (A) can be converted into bromocyclohexane (E) by a reaction that is similar to the reaction of methane either with chlorine or with bromine. Name a
- January 2011, CHEM2 (old spec), Q1(a)(iii) (1 mark): State what the • represents in Cl• (1 mark)
- January 2010, CHEM4 (old spec), Q3(e) (1 mark): Use your understanding of reaction mechanisms to predict a mechanism for Step 2 by adding one or more curly arrows as necessary to the structure of the carbocat
Questions, mark schemes and examiner’s reports are © AQA, from their published past papers. Plumi isn’t affiliated with any exam board. Want whole papers? AQA A-Level Chemistry past papers.
The Plumi iPad app also offers exam-style questions with AI feedback on your handwritten working.