A-Level

OCR A-Level Chemistry Revision

Adaptive practice aligned to the Oxford, Cambridge and RSA Examinations specification. 9 topics, exam-style questions, and instant AI feedback.

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About OCR A-Level Chemistry

OCR provides GCSE and A-Level qualifications with a strong academic heritage. Their specifications are developed in partnership with the University of Cambridge and are widely adopted across England.

A-Level Chemistry is a rigorous and rewarding subject that deepens your understanding of the physical world at the atomic and molecular level. You will study organic chemistry (reactions, mechanisms, and synthesis), inorganic chemistry (periodicity, transition metals, and group chemistry), and physical chemistry (energetics, kinetics, equilibria, and electrochemistry). The course demands both conceptual understanding and precise mathematical application.

Topics in OCR A-Level Chemistry

1 Physical Chemistry

2 Inorganic Chemistry

3 Organic Chemistry

4 Energetics

5 Kinetics

6 Equilibria

7 Electrochemistry

8 Transition Metals

9 Practical Skills

Study Tips for OCR Chemistry

Learn organic reaction mechanisms by drawing them out repeatedly from memory — understanding the movement of electrons using curly arrows is fundamental, and examiners expect precise, correctly drawn mechanisms.

Create a reaction map that links organic functional groups, showing which reagents and conditions convert one group to another. This is invaluable for synthesis questions where you must plan multi-step routes.

For physical chemistry calculations (Hess cycles, Kp, electrode potentials), practise setting out your working methodically with clear units at every step. Careless unit errors are one of the most common reasons students lose marks.

Use colour-coded notes to separate organic, inorganic, and physical chemistry topics, and revise them in rotation to maintain breadth across all three areas rather than focusing on one at the expense of others.