Chemistry Threshold limit value of copper in the atmospheric air is 0.001 mg/m3 0.01 mg/m3 5.0 mg/m3 1.0 mg/m3 0.001 mg/m3 0.01 mg/m3 5.0 mg/m3 1.0 mg/m3 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Nitrogen forms a variety of compounds in all oxidation states ranging from –3 to + 6 –3 to + 4 –3 to + 3 –3 to + 5 –3 to + 6 –3 to + 4 –3 to + 3 –3 to + 5 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Water gas is the combination of CO and H2 CO2 and CO CO and H2O CO2and H2 CO and H2 CO2 and CO CO and H2O CO2and H2 ANSWER DOWNLOAD EXAMIANS APP
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 Ultraviolet radiation striking the earth is due to the depletion of Carbon dioxide Ozone Oxygen Carbon monoxide Carbon dioxide Ozone Oxygen Carbon monoxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Find the odd one: Slaked lime Chalk Marble Limestone Slaked lime Chalk Marble Limestone ANSWER DOWNLOAD EXAMIANS APP