Some commercially important polymers (PVC, teflon, polystyrene, nylon-6 and 66, terylene and bakelite).
Unit :28 Environmental Chemistry
Environmental pollution – air, water and soil pollutions, chemical reactions in atmosphere, smogs, major atmospheric pollutants, acid-rain, ozone and its reactions, effects of depletion of ozone layer, green house effect and global warming – pollution due to industrial wastes, green chemistry as an alternative tool for reducing pollution, strategy for controlling environmental pollution.
Unit :29 Biomolecules
Carbohydrates : Classification, aldose and ketose, monosaccharides (glucose and fructose), oligosaccharides (sucrose, lactose, maltose), polysaccharides (starch, cellulose, glycogen); important simple chemical reactions of glucose, elementary idea of structure of pentose and hexose.
Proteins : Elementary idea of a-amino acids, peptide bond, polypeptides, proteins; primary, secondary and tertiary structure of proteins and quaternary structure (gualitative idea only), denaturation of proteins, enzymes.
Vitamins : Classification and functions
Nucleic acids : Chemical composition of DNA and RNA
Lipids : Classification and structure
Hormones : Classification and functions in biosystem.
Unit :30 Chemistry in everyday life
– Chemicals in medicines – analgesics, tranquilizers, antiseptics, disinfectants, antimicrobials, antifertility drugs, antacids, antihistamins.
– Chemicals in food – preservativess, artificial sweetening agents.
– Cleansing agents – soaps and detergents, cleansing action.
– Rocket propellants : characteristics and chemicals used.