UPSC CHEMISTRY / வேதியியல் STUDY MATERIALS IN TAMIL PDF

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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.