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UNIT 1, SOME BASIC CONCEPTS OF CHEMISTRY, Chemistry is a branch of science which deals with the study of composition, structure, and properties of matter as well as the reaction by which one form of matter is, , converted to another., , Importance and Scope of Chemistry: Chemistry plays a very important role in our daily, life. It has helped us to meet all our requirements for a better life such as food, health,, comfort etc., , Some of the major contributions of chemistry to our modern world are,, , 1. Chemistry in medicine: Life saving drugs like Cisplatin and Taxol has been, effective for cancer therapy. Azidothymidine (AZT) helps Aids victims., Analgesics, Antibiotics, Antiseptics, Disinfectants, Anaesthetics, and, Tranquilizers etc are some of the contributions of chemistry. Synthetic vitamins, and tonics are also some of the products of chemistry., , 2. Chemistry in Industry: Plastics like Polyvinyl chloride, paints, varnishes, dyes,, cement, glass, ceramic are products of chemistry., , Extraction of metals from ores uses the knowledge of chemistry., , 3. Chemistry in Agriculture: Chemical fertilizers, Insecticides (e.g. DDT,, Gammexane), germicides, Food preservatives like Sodium benzoate are the, products of chemistry., , 4. Chemistry in Comfort and convenience: Domestic requirements like paper,, fabrics, soaps, perfumes, cosmetics, and cooking gas are contributions of, chemistry.