UPSC CHEMISTRY / வேதியியல் NOTES IN ENGLISH PDF

Chemistry ‐ Elements and Compounds‐Acids, bases and salts ‐ Oxidation and reduction – Chemistry of ores and metals ‐Carbon, nitrogen and their compounds‐ Fertilizers, pesticides, insecticides‐Biochemistry and biotechnology‐Electrochemistry‐ Polymers and plastics.