A Level · SYLLABUS 8873
H1 Chemistry past papers, marked the way the exam marks it.
THE SYLLABUS
What the 8873 syllabus examines
The 2026 H1 Chemistry syllabus (8873) has 9 topics. This is the syllabus's own list, in its own order.
- Atomic Structure
- Chemical Bonding
- Theories of Acids and Bases
- The Periodic Table
- The Mole Concept and Stoichiometry
- Chemical Energetics: Thermochemistry
- Reaction Kinetics
- Chemical Equilibria
- Polymers and Organic Chemistry
How it is examined. Every candidate sits 2 papers in the 2026 examination.
- Paper 1 · Multiple choice1 h · 30 marks · 33% of the final grade
- Paper 2 · Structured questions2 h · 80 marks · 67% of the final grade
These facts are from the syllabus documents SEAB publishes for the 2026 examination. Check there for the year you sit the paper.
THE BANK
Every chapter, with real papers behind it
FullMarks holds 949 H1 Chemistry questions, 146 of them carrying a full marking scheme, so a written answer can be marked against the same points an examiner would use. The chapters with the most practice behind them:
- Organic Chemistry
- Chemical Bonding
- Chemical Periodicity
- Atomic Structure
- Chemical Energetics
- Reaction Kinetics
- Ionic Equilibria
- Chemical Equilibria
- Atoms, Molecules and Stoichiometry
- Polymerisation
- Electrochemistry
- Hydrocarbons
- Hydroxy Compounds
- Isomerism and Stereochemistry
- Halogen Derivatives
- Carboxylic Acids and Derivatives
- Carbonyl Compounds
- The Gaseous State
HOW MARKING WORKS
Where the marks actually go
Chemistry marks sit on precision. The mark is not for knowing that a reaction happens, it is for naming the species, the bond, or the intermolecular force involved, and for saying which one is stronger and why. An answer that says "hydrogen bonding" when the scheme wants "hydrogen bonding between the hydroxyl group and water" is describing the right chemistry and still missing the point that is being paid for.
Handwriting-quality English is not what is being marked. An answer written in short, ungrammatical fragments can score full marks if every required statement is present. But naming the keywords is not enough either. Where the scheme asks you to connect two ideas, listing both without joining them earns nothing for that point. Padding an answer with extra terms in the hope that one of them lands does not work, and can cost you marks a shorter answer would have won.
WHAT YOU GET
Write it as you would in the paper
You practise real A Level chemistry questions and answer them the way you will on the day. Type them, photograph your handwritten working, or draw straight onto the screen. It comes back marked immediately, point by point. Where you lose a mark you are told exactly what was missing, rather than being shown a model answer and left to spot the difference yourself. If an explanation does not land, you can ask for the same thing again in plain words.
OTHER SYLLABUSES
Also covered
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