Chemistry Brass gets discoloured in air due to constant exposure in presence of: Hydrogenated wafers Aluminium phosphide Hydrogen sulphide Aluminium sulphide Hydrogenated wafers Aluminium phosphide Hydrogen sulphide Aluminium sulphide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Magnetite is Fe2O3 2Fe2O3. 3H2O Fe3O4 FeCO3 Fe2O3 2Fe2O3. 3H2O Fe3O4 FeCO3 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The method of concentrating the ore which makes use of the difference in density between ore and impurities is called liquation leaching magnetic separation levigation liquation leaching magnetic separation levigation ANSWER DOWNLOAD EXAMIANS APP
Chemistry The coordination number of body centered atom in cubic structure is 4 6 8 10 4 6 8 10 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is a renewable source of energy ? Natural gas Uranium Geothermal powder Coal Natural gas Uranium Geothermal powder Coal ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following elements is an example of noble gas ? Helium Nitrogen Chlorine Hydrogen Helium Nitrogen Chlorine Hydrogen ANSWER DOWNLOAD EXAMIANS APP
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