Cambridge International A & AS Level Chemistry Syllabus

Assessment and examinations

Candidates for Advanced Subsidiary (AS) certification will take Papers 1, 2 and either 31 or 32 at a single examination session.

Candidates who, having received AS certification, wish to continue their studies to the full Advanced

Level qualification may carry their AS marks forward and take just Papers 4 and 5 in the examination session in which they require certification.

Candidates taking the complete Advanced Level qualification at the end of the course take all five papers in a single examination session.

Paper 1 Paper 2 Paper 31/Paper 32 Paper 4 Paper 5

This paper will consist of 40 questions, thirty of the direct choice type and ten of the multiple completion type, all with four options. All questions will be based on the AS syllabus. Candidates will answer all questions.


This paper will consist of a variable number of structured questions of variable mark value. All questions will be based on the AS syllabus. Candidates will answer all questions. Candidates will. Answer on the question paper.


Paper 31 and Paper 32 will be equivalent and each candidate will be required to take only one of them. This is to allow large Centres to split candidates into two groups: one group will take Paper 31, the other group will take Paper 32. Each of these papers will be timetabled on a different day.

Each paper will consist of two or three experiments drawn from different areas of chemistry. The examiners will not be restricted by the subject content. Candidates will answer all questions. Candidates will answer on the question paper. See the Practical Assessment section of the syllabus for full details.


This paper will consist of two sections.

Section A (70 marks) will consist of questions based on the A2 core syllabus but may include material first encountered in the AS syllabus.

Section B (30 marks) will consist of questions based on the section “Applications of Chemistry” but may include material first encountered in the core (AS and A2) syllabus.

Both sections will consist of a variable number of structured and free response style questions of variable mark value. Candidates will answer all questions. Candidates will answer on the question paper.


This paper will consist of a variable number of questions of variable mark value based on the practical skills of planning, analysis and evaluation. The examiners will not be restricted by the subject content. Candidates will answer all questions. Candidates will answer on the question paper.


Syllabus contents

Physical chemistry

Inorganic Chemistry

Organic chemistry

Applications of chemistry

Practical chemistry