OCR GCSE Chemistry (J248)
Every topic with its OCR specification reference, free notes and tools to revise it, and your summer 2027 papers.
| Topic | Spec | Notes and tools |
|---|---|---|
| Atomic structure and the periodic table | C1 and C2.1 | Atomic structure, isotopes and relative atomic massThe periodic table: groups 1, 7 and 0 Molar MassPeriodic Table |
| Bonding, structure and the properties of matter | C2.2 | Periodic Table |
| Quantitative chemistry and the mole | C3.1 | Relative formula mass, percentage by mass and moles Molar MassPeriodic Table |
| Chemical changes: reactivity, acids and electrolysis | C3.2 to C3.4 | Molar MassPeriodic Table |
| Energy changes | C3.1 | |
| Rates of reaction and equilibrium | C5 | Rates of reaction and collision theory Reaction rates |
| Organic chemistry | C6.2 | Molar Mass |
| Chemical analysis | C2.1 and C4.2 | |
| The atmosphere and using resources | C6.1 and C6.3 (J250: C6.1 and C6.2) | Molar Mass |
| Required practicals and maths skills | practical activity groups and maths skills | Reaction ratesMolar Mass |
Your summer 2027 exams
| Paper | Date | Starts | Length |
|---|---|---|---|
| Chemistry A Paper 1 or 3 J248/01 or 03 | Monday 17 May 2027 | 9:00 | 1h 45m |
| Chemistry A Paper 2 or 4 J248/02 or 04 | Tuesday 15 June 2027 | 9:00 | 1h 45m |
Foundation and Higher papers are sat at the same time, so one row covers both. Source: OCR GCSE final examination timetable, June 2027 (final timetable), read on Wed 7 Oct. PDF (opens a new tab)
Taking Combined Science? Its papers are on the exam timetable page. Summer 2027 exam timetable
Official OCR pages
- Past papers and mark schemes (opens a new tab)
- Grade boundaries (opens a new tab)
- Exam timetables (opens a new tab)
Search for J248 on the board's page to find this course.
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