AQA A-LEVEL CHEMISTRY EXAMINATION 2026 ORGANIC CHEMISTRY: REACTION MECHANISMS (Paper 2 – Advanced Organic Chemistry) Qualification: A-Level Chemistry (AQA Specification) Paper Code: 7405/2 Topic Focus: Organic Reaction Mechanisms

AQA A-LEVEL CHEMISTRY EXAMINATION 2026
ORGANIC CHEMISTRY: REACTION MECHANISMS


(Paper 2 – Advanced Organic Chemistry)


Qualification: A-Level Chemistry (AQA Specification)
Paper Code: 7405/2
Topic Focus: Organic Reaction Mechanisms


Date: __________________________
Time: __________________________
Duration: 2 Hours


Total Marks: 80


INSTRUCTIONS TO CANDIDATES
Answer ALL questions in Section A and ANY TWO questions from Section B.
Show full mechanisms using curly arrows to represent electron movement.
Clearly indicate intermediates, reagents, and conditions.
Include structural formulas where required (displayed or skeletal).
Use appropriate IUPAC nomenclature in naming compounds.
A Data Booklet is provided.
Calculators may be used.

, ASSESSMENT FOCUS
Nucleophilic substitution (SN1 & SN2)
Electrophilic addition & substitution
Elimination reactions (E1 & E2)
Free radical substitution
Reaction pathways & synthesis
CANDIDATE DETAILS


Full Name: ____________________________________________
Candidate Number: _____________________________________
Centre Number: ________________________________________
Signature: ____________________________________________


FOR EXAMINER’S USE ONLY
Section Marks Available Marks Awarded
A 40
B 40
Total 80