Mock Papers and Final Review
Exam technique notes for your mock week, eight new mixed questions in the style of the real papers with full worked solutions, and recall cards for your final review. Nothing here is copied from the book.
Timed mock papers
This week, sit each full paper under timed conditions, then mark it with the mark scheme.
Learn it
Read one section at a time, then answer its check question before you open the answer.
13.1 Know the three papers
| Paper | Content | Time | Marks | Share |
|---|---|---|---|---|
| 1 | Advanced inorganic and physical chemistry (Topics 1–5, 8 and 10–15) | 1 hour 45 minutes | 90 | 30% |
| 2 | Advanced organic and physical chemistry (Topics 2, 3, 5, 6, 7, 9 and 16–19) | 1 hour 45 minutes | 90 | 30% |
| 3 | General and practical principles: any topic, synoptic questions and practical skills | 2 hours 30 minutes | 120 | 40% |
Papers 1 and 2 each include multiple-choice questions as well as short and extended answers. Paper 3 draws on the whole course and the core practicals. Check the latest specification and your school's exam timetable for exactly which topics each paper covers.
Check yourself: Which paper is the longest and carries the most marks?
Paper 3: 2 hours 30 minutes, 120 marks, 40%
13.2 How to sit the mocks
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13.3 Using your time
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13.5 Multiple-choice questions
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13.6 Extended writing
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13.7 Calculations
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13.8 Learning from the mocks, and your final review
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Extra worked questions
Cover the solution, answer on paper, then mark yourself against each step. Each step shows the mark it earns.
All 8 worked solutions are free for members. The first one is open to everyone.
Multiple choice: boiling points
Which of these has the highest boiling point? A CH4 B NH3 C PH3 D SiH4
Try it first, then show the worked solution
| Reason | NH3 forms hydrogen bonds (H on N, lone pair on N); the others only have weaker van der Waals or dipole forces. Answer B | 1 |
|---|
Answer: B, NH3
Examiner tip: The distractor is D: SiH4 has the most electrons, but hydrogen bonding outweighs that here.
Multiple choice with working
What volume of 0.200 mol dm−3 HCl reacts exactly with 0.0100 mol of Na2CO3? A 25.0 cm3 B 50.0 cm3 C 100 cm3 D 200 cm3
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An 'explain' question
Explain why hydrogen fluoride (b.p. 20 °C) has a much higher boiling point than hydrogen chloride (b.p. −85 °C).
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Find the mistake
For 2NO2(g) ⇌ N2O4(g), [NO2] = 0.020 and [N2O4] = 0.010 mol dm−3. A student wrote: "Kc = 0.010 ÷ 0.020 = 0.50, no units." Identify the error and give the correct answer.
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pH after mixing
20.0 cm3 of 0.150 mol dm−3 H2SO4 is mixed with 40.0 cm3 of 0.100 mol dm−3 NaOH. Calculate the pH of the mixture.
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Extended writing: preparing aspirin
Describe how a pure, dry sample of aspirin can be prepared from 2-hydroxybenzoic acid and ethanoic anhydride, and how its purity could be checked. (6 marks, levels of response)
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Significant figures and form
Calculate (a) the amount in moles and (b) the number of molecules in 4.50 g of water. Give each answer to three significant figures in standard form where suitable. NA = 6.022 × 1023 mol−1.
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The thermite reaction
Fe2O3(s) + 2Al(s) → Al2O3(s) + 2Fe(s). ΔfH: Fe2O3 −824, Al2O3 −1676 kJ mol−1. (a) Calculate ΔH. (b) Identify the reducing agent using oxidation numbers. (c) Calculate the mass of iron from 10.0 g of aluminium. (d) The mixture needs a burning magnesium fuse to start. Explain why.
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Recall cards
Answer out loud or on paper before you turn the card. Only a complete answer counts as "Got it".
These are 3 of 18 recall cards. Premium members get the full deck for every topic, ready for each review day in their plan.
Your review days
Count from your Day 0, the day you finish learning this week. Your plan schedules these for you.
- +1 Recall cards (these online cards, or the cards in the book)
- +3 Recall cards, then redo your Mock 1 errors
- +7 Recall cards, then redo your Mock 2 errors
- +14 Recall cards, then redo your Mock 3 errors
- +30 Resit your weakest mock, timed
All questions on this page are original and are not in the book. This site is independent and is not endorsed by AQA or Pearson Edexcel.