Title book Selected Concepts in Chemistry, is comprehensive and covers the basic aspects of chemistry. This book presents the basic foundation of chemistry and a wide range of examples are incorporated. It engages students through detailed presentation of reactions providing a solid understanding. This book is meant for an introductory UG and PG course on chemistry. The subject matter has been reorganized with integration of the study of organic, inorganic and physical chemistry. These selected topics strikes a perfect balance between theory and application. It is primarily intended to enable the student to work successfully and intelligently without the necessity for a larger measure of personal assistance. It also covers the syllabi of NET, SLET, IAS, PCS and other competitive examination on the topics discussed in this book. In all the nine chapters the subject matters has been represented in logical way with special emphasis on selected topics in chemistry. We feel that readers will experience a new approach to the understanding of chemistry in which selected interesting aspects of the basics have been probed and highlighted. The present endeavor will be fruitful to the authors, if the students and readers are benefited. Comprehensive and accurate presentation of the subject matter which is easy to understand and stimulates the interest of students. Valuable suggestions are invited from the readers so as to enrich the contents of the book from time to time.