The present text book has been written strictly according to the Revised Syllabus of Andhra Pradesh Universities for First Year students. The aims of this book have been to provide,

- The subject matter in a clear and simple style and usage of detailed and thought provoking material.
- Widen the scope of thought and parameter of practice and take the reader beyond the routine standard.
- A number of solved questions in each chapter for a better understanding of the theoretical aspects of the subject.
- A large number of questions at the end of each chapter to motivate the students.
- Emphasis on the principles rather than any more sophisticated mathematical manipulations.
- SI units used.
- IUPAC system used in organic chemistry. We hope that the present book will be very much beneficial to students. Suggestions for the improvement of book are welcome.