Most revision guides provide either content with a few questions, or just practice questions, but this guide presents a good balance of both. The author is highly experienced in preparing students for examinations from all the exam groups, and has trialled the scripts thoroughly. This book is written in plain English to help the student understand and revise. For each of 16 topics there are three pages of key content points followed by plenty of questions to test yourself and to make you aware of any areas needing further study. General guidance on the speci cations, revision, and how to approach the exam are provided at the start of the book, and full answers at the end. This book is fully revised for A2 OCR chemistry. As requested by readers this version has more space than earlier versions.