Salient Features of This Book This book is written strictly according to latest syllabus prescribed by the Council for ICSE examinations. The subject material has been treated systematically and presented in a coherent and interesting manner. The theory has been explained in simple language and includes many examples from real life situations. Emphasis has been laid on the basic facts, concepts, terms, principles and on the applications of various concepts. Carefully selected examples consist of detailed step-by-step solutions. A number of solved examples are included in each section so that students are well prepared to tackle all the problems given in exercises. An attempt has been made to make the book user friendly- matter is well spaced out and given in a bigger type size. Also, the matter has been divided into sections and sub-sections so that students can learn at their own pace. Each chapter contains an exercise on Multiple Choice Questions which have been framed in a manner such that they holistically cover all the concepts included in the chapter. Statement-I/II Type Questions and Assertion-Reasons Type Example and Questions help in critically analysing the topics. Competency Focussed Questions are also included throughout the book. This book is sufficient to help the students score cent-percent marks in ICSE examination and also builds a strong foundation for success in any competitive examination. Each chapter is followed by a Chapter Test which includes problems related to all the topics, so that the students have total understanding of these topics before moving on to next chapter.