First Edition: February 2010

Revised Edition: September 2013

ISBN 978-962-7326-77-9

About the Book

Chemistry in 24 Hours is specially written to equip students for HKDSE Chemistry Examination. The content and examples in this book strictly follow the latest HKDSE Chemistry syllabus. The concise revision notes in this book are written in simple English to meet the needs of different students. With these well-written notes, students can acquire all the chemical knowledge required in public exam within a short period of time. This book covers Topic 1 to 6 of the Chemistry Curriculum (Compulsory Part).

First Edition: March 2011

Revised Edition: September 2014

ISBN 978-962-7326-81-6

About the Book

Chemistry in 24 Hours is specially written to equip students for HKDSE Chemistry Examination. The content and examples in this book strictly follow the latest HKDSE Chemistry syllabus. The concise revision notes in this book are written in simple English to meet the needs of different students. With these well-written notes, students can acquire all the chemical knowledge required in public exam within a short period of time. This book covers Topic 7 to 12 of the Chemistry Curriculum (Compulsory Part).

First Edition: April 2012

Revised Edition: May 2015

ISBN 978-962-7326-88-5

About the Book

Chemistry in 24 Hours is specially written to equip students for HKDSE Chemistry Examination. The content and examples in this book strictly follow the latest HKDSE Chemistry syllabus. The concise revision notes in this book are written in simple English to meet the needs of different students. With these well-written notes, students can acquire all the chemical knowledge required in public exam within a short period of time. This book covers Topic 15 of the Chemistry Curriculum (Elective Part).

First Edition: December 2012

Revised Edition: October 2015

ISBN 978-962-7326-93-9

About the Book

Chemistry in 24 Hours is specially written to equip students for HKDSE Chemistry Examination. The content and examples in this book strictly follow the latest HKDSE Chemistry syllabus. The concise revision notes in this book are written in simple English to meet the needs of different students. With these well-written notes, students can acquire all the chemical knowledge required in public exam within a short period of time. This book covers Topic 13 of the Chemistry Curriculum (Elective Part).

第一版：2018 年 9 月 

ISBN 978-988-8438-02-0

本書簡介

《二十四小時化學解讀》經過審訂整理，編寫內容參照化學科文憑試最新的考評模式重新修訂，溫習筆記的寫法亦能配合不同考生的需要，援引更多適切例子輔助理解。考生透過這書，能在有限的溫習時間內獲得應考文憑試所需具備的化學知識。

第一版：2019 年 1 月 

ISBN 978-988-8438-03-7

本書簡介

《二十四小時化學解讀》經過審訂整理，編寫內容參照化學科文憑試最新的考評模式重新修訂，溫習筆記的寫法亦能配合不同考生的需要，援引更多適切例子輔助理解。考生透過這書，能在有限的溫習時間內獲得應考文憑試所需具備的化學知識。

第一版：2019 年 9 月 

ISBN 978-988-8438-04-4

本書簡介

《二十四小時化學解讀》經過審訂整理，編寫內容參照化學科文憑試最新的考評模式重新修訂，溫習筆記的寫法亦能配合不同考生的需要，援引更多適切例子輔助理解。考生透過這書，能在有限的溫習時間內獲得應考文憑試所需具備的化學知識。

第一版：2019 年 9 月 

ISBN 978-988-8438-05-1

本書簡介

《二十四小時化學解讀》經過審訂整理，編寫內容參照化學科文憑試最新的考評模式重新修訂，溫習筆記的寫法亦能配合不同考生的需要，援引更多適切例子輔助理解。考生透過這書，能在有限的溫習時間內獲得應考文憑試所需具備的化學知識。

First Edition: January 2011

Second Edition: December 2014

ISBN 978-962-7326-85-4

About the Book

HKDSE Chemistry is a series of revision guides and practice questions prepared in an order of progressive difficulty for the students. The questions in this book have been grouped into chapter topics following the order as that of the syllabus. 

Each topic begins with a section of Warm up Questions, followed by Revision Summary. They identify the core knowledge, basic application of the concepts and experimental skills that you must grasp when answering exam questions.  

The section of Further Questions in each topic extends the depth and breadth of knowledge of those students aiming at Levels 5 and above at the HKDSE Exam. Questions here go beyond the limits of the core material to provide additional exercise on quality of communication, STSE applications, practical skills, analysis and syntheses of concepts from different chapters.

First Edition: September 2011

Second Edition: September 2014

ISBN 978-962-7326-83-0

About the Book

HKDSE Chemistry is a series of revision guides and practice questions prepared in an order of progressive difficulty for the students. The questions in this book have been grouped into chapter topics following the order as that of the syllabus. 

Each topic begins with a section of Warm up Questions, followed by Revision Summary. They identify the core knowledge, basic application of the concepts and experimental skills that you must grasp when answering exam questions. 

The section of Further Questions in each topic extends the depth and breadth of knowledge of those students aiming at Levels 5 and above at the HKDSE Exam. Questions here go beyond the limits of the core material to provide additional exercise on quality of communication, STSE applications, practical skills, analysis and syntheses of concepts from different chapters. 

First Edition: September 2012

Second Edition: September 2014

ISBN 978-962-7326-84-7

About the Book

Taking up this book to study means the readers are really serious in this subject; and would like to go beyond its core knowledge as covered by the previous books.

In this book, the Warm-up Exercises as found previously in the more elementary Books 1 and 2 were removed. Each Chapter in this book begins with a collection of searching multiple choice questions, which spot check any gaps in understanding and knowledge. Conventional questions follow straight ahead, to allow the readers to take the bull by the horns.

First Edition: January 2024

ISBN 978-988-8438-17-4

About the Book

Ever since the HKDSE Chemistry has come into operation since 2012, a great majority of the candidates (96 – 97%) have been consistently taking the combination of Industrial Chemistry and Analytical Chemistry as their electives in Paper 2 of the exam. When revising previous editions of these two electives, the opportunity has been taken to combine the two separate books into a single copy, to save cost for our readers and the parents. 

In this book, each chapter now begins with some keynote summaries that are designed to refresh our reader’s memory on key concepts, and as a prompt to work which still needs to be done. This is followed by a broad range of exam style practice questions that have been updated to reflect current format and depths and structured in a way to highlight common pitfalls that have caught out the common candidates.

First Edition: November 2013

ISBN 978-962-7326-78-6

About the Book

First Edition: September 2013

ISBN 978-962-7326-75-5

About the Book

First Edition: September 2013

ISBN 978-962-7326-76-2

About the Book

First Edition: December 2013

Second Edition: October 2023

ISBN 978-962-296-105-0

About the Book

This book contains a collection of test papers that cover the topics and concepts that are most likely to appear in the public exams. In this edition, the test papers are modified to suit for the latest curriculum and exam pattern of the HKDSE. To prepare well in the public examination, both teachers and students should get familiar to different types of questions, content to be examined and marking criteria. 

By practicing with this book, readers will be able to revise the important concepts, enhance the understanding, and boost the confidence in chemistry. Readers will also be able to identify their strengths and weaknesses, and work on them accordingly.

First Edition: January 2015

ISBN 978-962-296-090-9

About the Book

First Edition: January 2016

ISBN 978-962-296-094-7

About the Book

First Edition: December 2016

ISBN 978-962-296-096-1

About the Book