Chemistry Brass gets discoloured in air due to constant exposure in presence of: Hydrogen sulphide Aluminium phosphide Aluminium sulphide Hydrogenated wafers Hydrogen sulphide Aluminium phosphide Aluminium sulphide Hydrogenated wafers ANSWER DOWNLOAD EXAMIANS APP
Chemistry The name of plastic polymer from which combs, toys, bowls etc., can be made, is Teflon Polyurethane Metallic polysulphides Polystyrene Teflon Polyurethane Metallic polysulphides Polystyrene ANSWER DOWNLOAD EXAMIANS APP
Chemistry The metal that is used as a catalyst in the hydrogenation of oils is Cu Pb Ni Pt Cu Pb Ni Pt ANSWER DOWNLOAD EXAMIANS APP
Chemistry The gas that is used in the manufacture of vanaspati ghee is : Hydrogen Oxygen Carbon dioxide Nitrogen Hydrogen Oxygen Carbon dioxide Nitrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Higher concentration of nitrogen dioxide in atmosphere air causes Bronchitis Corrosion Asphyxiation Cancer Bronchitis Corrosion Asphyxiation Cancer ANSWER DOWNLOAD EXAMIANS APP
Chemistry Kinetics is the study of: All of these are correct How fast the reactions go The mechanisms and paths of the molecules take in joining from one reactant to products The rate of chemical reaction All of these are correct How fast the reactions go The mechanisms and paths of the molecules take in joining from one reactant to products The rate of chemical reaction ANSWER DOWNLOAD EXAMIANS APP
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