Try the full study dashboard free, no signup: practice, flashcards and your Exam Readiness Score. Open it →
Home / Practice tests / A-level Chemistry
A-level · Last updated November 2026

A-level Chemistry Exam: free practice test

A-level Chemistry is a two-year linear qualification graded A* to E, with all exams sat at the end of the course in the May/June series. With AQA (7405) it is assessed by three 2-hour written papers: physical and inorganic chemistry, physical and organic chemistry, and a synoptic paper with practical, data analysis and 30 multiple-choice marks. Your practical skills are also recognised by a separate endorsement based on the 12 required practicals.

Premium: 3,000 practice questions, 6 full mock exams, 800 flashcards and 60 comprehensive key notes, topic by topic. See the study path ·

Or open the free A-level Chemistry study dashboard: flashcards, notes and your Readiness Score, no signup →

About the A-level Chemistry exam

A-level Chemistry is a two-year linear qualification graded A* to E, with all exams sat at the end of the course in the May/June series. With AQA (7405) it is assessed by three 2-hour written papers: physical and inorganic chemistry, physical and organic chemistry, and a synoptic paper with practical, data analysis and 30 multiple-choice marks. Your practical skills are also recognised by a separate endorsement based on the 12 required practicals.

What's on the exam

A-level Chemistry
Atomic Structure, Amount of Substance and Bonding
8 key facts
Energetics, Kinetics and Equilibria
8 key facts
Further Physical Chemistry
8 key facts
Periodicity, Group 2 and the Halogens
8 key facts
Transition Metals and Inorganic Reactions
8 key facts
Organic Chemistry: Alkanes to Alcohols
8 key facts
Organic Chemistry: Aromatics, Carbonyls and Synthesis
8 key facts
Practical Skills and Data Analysis
8 key facts

Each branch is a topic in the official outline. Members see every key fact on the full mind map. Read the free study guide →

How to pass the A-level Chemistry exam

  • Papers 1 and 2 give you 105 marks in 120 minutes, a little over 1 minute per mark. Spend about 30 seconds on each 1-mark multiple-choice question in Paper 3 to leave time for the practical questions.
  • In calculations, keep full calculator values until the end and give the answer to the number of significant figures the data justifies, with units. Mark schemes often penalise wrong significant figures and missing units.
  • Draw mechanisms with curly arrows starting from a lone pair or a bond and ending at an atom or bond. Missing lone pairs and partial charges are the most common lost marks.
  • Learn the exact wording of definitions such as first ionisation energy, electronegativity, standard enthalpy of formation and Brønsted-Lowry acid. They are quick marks that are often only half remembered.
  • Paper 3 can test any content plus the 12 required practicals. Learn each practical's method, the apparatus, sources of error and how to calculate percentage uncertainty.

Save your results and get your Readiness Score

Create a free account after the test: your score by topic, a mistakes bank, the complete study notes for the first topic, flashcards and the GCSE Maths Formula Sheet.

Take the test first

What's in the premium A-level Chemistry prep

Premium A-level Chemistry prep is studied one topic at a time. Each step starts with that topic's key notes and flashcard deck, then its own question sets of 25, so you master one topic before you move to the next. When every topic is strong, the 6 full mock exams show you're ready.

3,000practice questions, every answer explained
6full-length mock exams, 50 questions each, timed
800flashcards with spaced repetition, sorted by topic
60comprehensive key notes across 8 topics

Your step-by-step study path

  1. 1
    Atomic Structure, Amount of Substance and Bonding8 key notes, 100 flashcards, then 375 practice questions in 15 sets of 25
    Notes free with an account
  2. 2
    Energetics, Kinetics and Equilibria8 key notes, 100 flashcards, then 375 practice questions in 15 sets of 25
    Premium
  3. 3
    Further Physical Chemistry8 key notes, 100 flashcards, then 375 practice questions in 15 sets of 25
    Premium
  4. 4
    Periodicity, Group 2 and the Halogens8 key notes, 100 flashcards, then 375 practice questions in 15 sets of 25
    Premium
  5. 5
    Transition Metals and Inorganic Reactions7 key notes, 100 flashcards, then 375 practice questions in 15 sets of 25
    Premium
  6. 6
    Organic Chemistry: Alkanes to Alcohols7 key notes, 100 flashcards, then 375 practice questions in 15 sets of 25
    Premium
  7. 7
    Organic Chemistry: Aromatics, Carbonyls and Synthesis7 key notes, 100 flashcards, then 375 practice questions in 15 sets of 25
    Premium
  8. 8
    Practical Skills and Data Analysis7 key notes, 100 flashcards, then 375 practice questions in 15 sets of 25
    Premium
  9. Final step: 6 full mock exams50 questions each, timed like exam day. Hit your target on them before your first paper.
    Premium
Free with an account

Read the complete A-level Chemistry study notes for “Atomic Structure, Amount of Substance and Bonding”

Our first full set of comprehensive notes, about 20 minutes of reading: Sub-shells and electron configurations · Ionisation energies · Time of flight mass spectrometry · Amount of substance · Ionic, covalent and metallic bonding · Shapes of molecules and ions · Electronegativity and intermolecular forces, a worked exam example, the traps examiners use and a one-minute recap. Create a free account to read it and see how premium notes work before you decide.

Open the free dashboard

Study tools included

3,000 practice questions

3,000 exam-style questions per exam, organised topic by topic in sets of 25. Every answer explained, with the rule it comes from.

6 full mock exams

6 full-length timed mock exams per exam, with real question counts and time limits, so test day feels like practice day.

Exam Readiness Score

One 0 to 100 number that tells you when you're ready for exam day. Reach 80 and you're covered by our Pass Guarantee.

800 flashcards + spaced repetition

800 flashcards per exam, in a deck for each topic, that come back right before you'd forget them. Five minutes a day keeps every number fresh.

60 comprehensive key notes

60 key notes per exam, split across its topics and each explained in full: the concepts, worked exam examples, the traps examiners use and a quick recap. Your first set is free with an account.

Mind maps

See the whole exam on one screen: every topic and the facts under it.

Sample questions with answers

These are the questions in the free test above, with answers. Try the test first. You'll learn more by getting some wrong.

1. What amount of gas, in moles, occupies 2.40 dm³ at 100 kPa and 300 K? (R = 8.31 J K⁻¹ mol⁻¹)
Answer: 0.0963 mol. n = pV ÷ RT. Convert to SI units: p = 100 000 Pa, V = 2.40 × 10⁻³ m³. n = (100 000 × 2.40 × 10⁻³) ÷ (8.31 × 300) = 240 ÷ 2493 = 0.0963 mol. Forgetting to convert dm³ to m³ gives 96.3.
2. What is the shape of the NH₂⁻ ion and its approximate bond angle?
Answer: Bent, about 104.5°. N has 5 outer electrons, plus 1 for the negative charge = 6, plus 1 from each H = 8, so 4 electron pairs: 2 bonding and 2 lone pairs. Lone pairs repel more, reducing the angle by about 2.5° each from 109.5°, giving a bent shape of about 104.5°.
3. Standard enthalpies of combustion (kJ mol⁻¹): C(s) −394, H₂(g) −286, C₂H₆(g) −1560. What is the standard enthalpy of formation of ethane, 2C(s) + 3H₂(g) → C₂H₆(g)?
Answer: −86 kJ mol⁻¹. ΔfH = Σ ΔcH(reactants) − Σ ΔcH(products) = [2(−394) + 3(−286)] − (−1560) = −1646 + 1560 = −86 kJ mol⁻¹.
4. For an equilibrium whose forward reaction is exothermic, what happens when the temperature is increased?
Answer: Kc decreases and the equilibrium shifts to the left. Raising the temperature favours the endothermic (reverse) direction, so the position moves left. Temperature is the only factor that changes the value of Kc; for an exothermic forward reaction Kc decreases.
5. The rate equation for a reaction is rate = k[A]²[B]. By what factor does the rate change if [A] is doubled and [B] is tripled at the same temperature?
Answer: ×12. Doubling [A] multiplies the rate by 2² = 4; tripling [B] multiplies it by 3. Overall factor = 4 × 3 = 12. k is unchanged because the temperature is constant.
6. What is the pH of 0.020 mol dm⁻³ sodium hydroxide at 298 K? (Kw = 1.00 × 10⁻¹⁴ mol² dm⁻⁶)
Answer: 12.30. NaOH is a strong base, so [OH⁻] = 0.020. [H⁺] = Kw ÷ [OH⁻] = 1.00 × 10⁻¹⁴ ÷ 0.020 = 5.0 × 10⁻¹³. pH = −log(5.0 × 10⁻¹³) = 12.30. 1.70 is the pOH, not the pH.
7. A reaction has ΔH = +50 kJ mol⁻¹ and ΔS = +125 J K⁻¹ mol⁻¹. Above what temperature does it become feasible?
Answer: 400 K. Feasible when ΔG = ΔH − TΔS ≤ 0, so T = ΔH ÷ ΔS. Convert ΔH to J: 50 000 ÷ 125 = 400 K. Using kJ without converting gives 0.4 K; 127 is 400 K expressed in °C.
8. Which trend is correct going down Group 2 from magnesium to barium?
Answer: The hydroxides become more soluble and the sulfates become less soluble. Down Group 2 the hydroxides become more soluble (Mg(OH)₂ is sparingly soluble) and the sulfates less soluble (BaSO₄ is insoluble, used in barium meals). First ionisation energy decreases as the outer electrons are further from the nucleus.
9. Which solid sodium halide reduces concentrated sulfuric acid as far as hydrogen sulfide, H₂S?
Answer: NaI. Reducing power of the halide ions increases down the group. Iodide is the strongest reducing agent, reducing sulfur from +6 to −2 in H₂S (and also forming S and SO₂). Bromide reduces it only to SO₂; fluoride and chloride do not reduce it.
10. Excess concentrated hydrochloric acid is added to a solution containing [Cu(H₂O)₆]²⁺. What forms?
Answer: [CuCl₄]²⁻, a yellow-green solution with a tetrahedral shape. Ligand substitution replaces the six water ligands with four chloride ligands. Chloride ions are larger than water molecules, so only four fit, the coordination number changes from 6 to 4 and the complex is tetrahedral.
11. What is the oxidation state of chromium in the dichromate(VI) ion, Cr₂O₇²⁻?
Answer: +6. Oxygen is −2, so 7 × (−2) = −14. The total must equal the charge, −2: 2Cr − 14 = −2, so 2Cr = +12 and each Cr is +6. The name dichromate(VI) confirms it.
12. 2-bromopropane is heated under reflux with potassium hydroxide dissolved in ethanol. What type of reaction happens and what is the main organic product?
Answer: Elimination, giving propene. In ethanol at high temperature the hydroxide ion acts as a base, removing an H⁺ from a carbon next to the C–Br carbon, so HBr is eliminated and propene forms. Warm aqueous KOH favours substitution to give the alcohol.
13. An infrared spectrum shows a very broad absorption at 2500-3000 cm⁻¹ and a strong, sharp absorption at about 1710 cm⁻¹. Which type of compound is it most likely to be?
Answer: A carboxylic acid. The very broad band at 2500-3000 cm⁻¹ is O–H in a carboxylic acid, and 1680-1750 cm⁻¹ is C=O. An alcohol's O–H is at 3230-3550 cm⁻¹, and aldehydes and esters have no O–H.
14. In the ¹H NMR spectrum of ethanal, CH₃CHO, how is the peak for the CH₃ protons split?
Answer: Doublet. Using the n + 1 rule, the CH₃ protons are next to a carbon with 1 hydrogen (the CHO), so the peak splits into 1 + 1 = 2: a doublet. The CHO proton, next to 3 hydrogens, gives a quartet.
15. A burette has an uncertainty of ±0.05 cm³ per reading. A titre of 25.00 cm³ is found from an initial and a final reading. What is the percentage uncertainty in the titre?
Answer: 0.40%. Two readings are taken, so the uncertainty in the titre is 2 × 0.05 = 0.10 cm³. Percentage uncertainty = (0.10 ÷ 25.00) × 100 = 0.40%.

Get the full A-level Chemistry prep

Most popular · cancel anytime

Premium Monthly

£29/month
per exam
About £0.95 a day · less than a cup of hot chocolate, for the grade that opens the next door
  • One subject of your choice: any GCSE, A-level or Functional Skills exam
  • 3,000 practice questions + 6 full mock exams per exam
  • 800 flashcards + 60 key notes per exam, by topic, plus mind maps
  • Spaced repetition + mistakes bank
  • Readiness Score & detailed reports
  • Video lessons as they release
  • Content updates during your access
  • 5 bonuses: GCSE Maths formula sheet, command words cheat sheet, 12-week revision planner and more
  • Pass Guarantee: complete the prep, pass or 100% back

Renews monthly until you cancel. Cancel in two clicks from your account; you keep access until the end of the month you've paid for. No minimum term.

Best value · 3 months free

Premium Yearly

£261/year
per exam
Pay for 9 months, get 12. Save £87 against paying monthly.
  • One subject of your choice: any GCSE, A-level or Functional Skills exam
  • 3,000 practice questions + 6 full mock exams per exam
  • 800 flashcards + 60 key notes per exam, by topic, plus mind maps
  • Spaced repetition + mistakes bank
  • Readiness Score & detailed reports
  • Video lessons as they release
  • Content updates during your access
  • 5 bonuses: GCSE Maths formula sheet, command words cheat sheet, 12-week revision planner and more
  • Pass Guarantee: complete the prep, pass or 100% back

Renews once a year until you cancel. We email you before each renewal. Cancel any time from your account; you keep access until the end of the year you've paid for.

Pass Guarantee. Complete the full prep, sit your exam in the next exam series, and if you don't pass we refund 100% of your subscription payments. See the requirements
Secure checkout by Stripe Card, Apple Pay, Google Pay Pass Guarantee

Exam guide

A-level Chemistry exam guide (2027): A-level Chemistry is a two-year linear course graded A* to E, with every exam taken at the end of Year 13. This guide follows AQA 7405, the most widely used specification, and compares OCR Chemistry A (H432) and Pearson Edexcel (9CH0). All three boards use three written papers plus a separate practical endorsement, and there is no coursework that counts towards your grade.

A-level Chemistry exam FAQ

How many questions are on the A-level Chemistry exam?

AQA: 3 written papers of 105, 105 and 90 marks (300 marks in total), with a time limit of 6 hours in total (3 × 2 hours). Format: written exam, calculator allowed, data booklet provided. no tiers. the practical endorsement is assessed by your teacher and reported separately as pass or not classified.

What is the passing score for A-level Chemistry?

Grades run from A* to E, and grade E is a pass. Boundaries are set after every exam series, so aim for 70% in practice.

How much does the A-level Chemistry exam cost?

No fee for school and college students (the school pays). Private candidates pay the exam centre; fees vary by centre. School and college students don't pay exam fees themselves. Private candidates pay the exam centre, and fees vary by centre and board.

Which languages is the A-level Chemistry exam offered in?

English.

Where do I take the A-level Chemistry exam?

At your school or college, or as a private candidate at an exam centre that accepts them (and can arrange the practical endorsement).

Is this A-level Chemistry practice test free?

Yes. The 15-question practice test on this page is free, with an explanation for every answer and no signup. A free account also unlocks the complete study notes for the first topic. The full A-level Chemistry prep is Premium at £29 a month for this exam.

What's in the premium A-level Chemistry prep?

3,000 practice questions organised topic by topic (Atomic Structure, Amount of Substance and Bonding: 375; Energetics, Kinetics and Equilibria: 375; Further Physical Chemistry: 375; Periodicity, Group 2 and the Halogens: 375; Transition Metals and Inorganic Reactions: 375; Organic Chemistry: Alkanes to Alcohols: 375; Organic Chemistry: Aromatics, Carbonyls and Synthesis: 375; Practical Skills and Data Analysis: 375), 6 full-length timed mock exams of 50 questions, 800 flashcards and 60 comprehensive key notes split across all 8 topics, plus a mistakes bank and the Readiness Score.

Compare A-level Chemistry with the related qualifications

Related practice tests

Exam details are summarised from the exam boards' published specifications available in November 2026. the exam boards changes formats and fees, so confirm with AQA, OCR and Pearson Edexcel before you book. Kennington College is not affiliated with any exam board or with Ofqual.

Start the free test