Damodar Koirala

chemistry nepal physical inorganic spectroscopy atomic science absorption instrumentation analytical emission chemical organic polymer volumetric high school equilibrium metal metallurgy reaction tu pesticides fertilizers dyes drugs medicine periodic table d block metals heavy bonding geometry molecular analysis market analysis inoic ionic plasma atomic emission spectrophotometry fp photometry flame percentage purity limiting reagent reagent limiting hypothesis avogadros atom mole numerical stoichimetry stoichiometry properties potasium sodium alkali magnisium calcium earth alkaline preparation alkyne alkene alkane electronics mechanism detection formula homologous series iupac nomeclature