Sailent features of the book: *Use od SI units to make the students aware of inernational trends in the scientific world. *Latest IUPAC name of elements and compounds *A large number of activities helpful as an effective way of learning by doing. *Statement of main facts with reasons given in the tabular forms. *Illustrative examples and labelled diagrams for a proper understanding of the concepts. *Main points for quick review of the contents of each chapter.