Chemistry Which one of the following is used for dating very old objects of archaeological importance? Radium Phosphorus-31 Tritium Carbon-14 Radium Phosphorus-31 Tritium Carbon-14 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is a metallic ore ? Mica Quartz Galena Feldspar Mica Quartz Galena Feldspar ANSWER DOWNLOAD EXAMIANS APP
Chemistry Higher concentration of nitrogen dioxide in atmosphere air causes Cancer Asphyxiation Corrosion Bronchitis Cancer Asphyxiation Corrosion Bronchitis ANSWER DOWNLOAD EXAMIANS APP
Chemistry The graphite rods in the nuclear reactor convert fast moving neutrons into thermal neutrons produce neutrons undergo combustion which triggers the nuclear fission react with U to release energy convert fast moving neutrons into thermal neutrons produce neutrons undergo combustion which triggers the nuclear fission react with U to release energy ANSWER DOWNLOAD EXAMIANS APP
Chemistry Magnetite is Fe2O3 Fe3O4 FeCO3 2Fe2O3. 3H2O Fe2O3 Fe3O4 FeCO3 2Fe2O3. 3H2O ANSWER DOWNLOAD EXAMIANS APP
Chemistry The chief source for the production of nitrogeneous fertilizers is : Nitric acid Nitrogen Nitrogen dioxide Ammonia Nitric acid Nitrogen Nitrogen dioxide Ammonia ANSWER DOWNLOAD EXAMIANS APP
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