AQA A Level Chemistry Paper 1 2025 Question Paper Pdf

Get the official AQA A-Level Chemistry Paper 1 question paper from the June 2025 series (7405/1), sat on Tuesday 10 June 2025 (morning). This is the exact examiner-set paper used in the live exam, covering **Inorganic and Physical Chemistry** with a total of **105 marks** over 2 hours.

The paper begins with core inorganic chemistry, including Group 2 reactions and qualitative analysis (pages 2–4). For example, Question 1 tests extraction of titanium using magnesium, identification of ions through precipitation reactions, and practical chemistry involving silver nitrate tests.

Physical chemistry topics are extensively assessed. Question 2 focuses on ionisation energies, including trends across Period 3 and interpretation of graphical data (page 6). Question 4 includes thermodynamics and energetics, requiring calculation of feasibility temperature using ΔH and ΔS data (page 14), as well as bond enthalpy calculations in reactions involving ammonia and oxygen (page 15).

Transition metal chemistry is a major component. Question 3 explores copper complexes, ligand exchange reactions, colour changes, and shapes of complex ions such as [Cu(H2O)6]²⁺ and [CuCl4]²⁻ (pages 7–9). It also includes a full redox titration calculation using manganate(VII) ions and oxalate ions (page 10), testing advanced quantitative skills.

Further topics include:
- **Halogens and redox chemistry** (Question 5, page 18), including reactions with sulfuric acid and oxidation states.
- **Electrochemistry and fuel cells** (Question 6, pages 20–22), with electrode half-equations and EMF analysis using graphs.
- **Transition metals (vanadium)** (Question 7, pages 23–26), including electrode potentials and catalytic cycles.
- **Acids, bases, and buffers** (Question 8, pages 27–31), featuring pH calculations, titration curves (Figure 3), and buffer calculations.

For example, the **titration curve shown on page 28 (Figure 3)** requires identifying the acid–base combination based on the equivalence point, while later questions involve multi-step buffer calculations using Ka values (page 31).

This paper is essential for realistic exam practice, helping you master calculations, data interpretation, and extended chemical explanations required for top grades in A-Level Chemistry. Pair it with the official mark scheme for full examiner-standard revision. Fully updated for the 2025/2026 academic year and optimised for instant download on markscheme.net.

This paper is essential for Year 13 students preparing for the 2026 AQA A-Level Chemistry exams, particularly those focusing on Paper 1 topics including inorganic and physical chemistry.

Teachers and tutors use this resource for mock exams, timed assessments, and structured revision sessions. It is also ideal for independent learners and retake candidates who want authentic exam-style practice and exposure to real AQA questions.