The book is designed as a text/reference book for the students of Senior High School Classes. The book can be used as an effective tool to: • Provide knowledge, understanding and appreciation of the scientific methods. • Make the subject interesting and motivating through designing activities for students to enhance their understanding of the subject and not to make a collection of facts to be learnt by rote. • Create the awareness of the inter-relationship between chemistry and the other disciplines of science. Encourage chemistry project work in the schools. Salient Features Divided into 59 units covering basics of all the disciplines of chemistry such as inorganic, organic, physical and analytical chemistry. The text is attractively illustrated with clear and fully labelled diagrams to aid quick understanding. A wide range of activities have been suggested to motivate the students to develop practical skills. A summary of important terms and concepts has been given in each unit for quick revision. Each unit ends with a set of Multiple Choice Questions and Discussion Questions.