This book has been written in accordance with the latest syllabus prescribed by RGPV, Bhopal, MP, for the first year students in BE|BTech courses. It also covers the syllabi of other Indian universities. Engineering chemistry is a compulsory interdisciplinary subject offered to undergraduate engineering students. This book introduces the fundamental concepts in a simple manner, which makes understanding of the concepts easy. The subject matter has been presented in a very lucid and comprehensive manner. Several solved numerical problems are included. Relevant figures, labelled diagrams, and equations are presented as required. Model papers are also included for student's practice.