Chemistry is the basic subject whose principles are applied in all fields of science. To understand basic concepts of the subject understanding the chemistry part is equally essential. This book is specially designed for undergraduate students of different disciplines.It explains the fundamental concepts of chemistry in a very effortless manner. The book is written in a lucid, precise and systematic way. It explains the basic concepts of bonding, reaction rates,chemistry of engineering materials, Instrumental methods of analysis and Fuels and Lubricants