Chemistry

This chapter explains the concept of physical and chemical changes. In addition, it describes how to write a word or a formula equation and balance a chemical equation. Moreover, it explains the various types of chemical reactions.

This chapter explains the concepts of acids, bases and salts. Then, it describes the various reactions of acids, bases and salts. Moreover, it explains the various examples and uses of important salts which are used in everyday life.

This chapter explains the classification of elements into metals and non-metals. It covers their physical and chemical properties. Further, it explains the various methods of extraction of metals from ores and the reactivity order of metals.

This chapter explains the importance of carbon and its compounds. The versatility of carbon and the different types of bonds formed by it with other elements are described. The properties of ethanol and ethanoic acid are also discussed.

This chapter explains the development of the periodic table. In addition, it describes the merits and demerits of different periodic tables. Moreover, it explains the various trends in the properties of the modern periodic table.