Chemistry is a vast field in the world of science. It is the study of the properties, structure, composition and changes of matter. It includes examining the properties and chemical bonds of atoms. It is concerned with the reactions which transform an element into another. This book aims to shed light on some of the unexplored aspects of chemistry. It is a valuable compilation of topics, ranging from the basic to the most complex theories and principles in this field. Different approaches, evaluations and methodologies and advanced studies on chemistry have been included in the text. As this field is emerging at a rapid pace, the contents of this book will help the readers understand the modern concepts and applications of the subject.