It is the science of matter and its interactions. It is the study of all the matter surrounding us. It is a branch of physical science dealing with substances having physical and chemical properties. Chemistry is a very popular discipline as it is needed in the everyday world for example in a household, business, or industry. In chemistry, we study the composition, structure, and properties of matter. Also, the changes occurring in the matter during chemical reactions are studied. As chemistry is a part of our daily lives, we should all have knowledge about .