Chemistry The most abundant element in the earth’s atmosphere is Krypton Argon Oxygen Nitrogen Krypton Argon Oxygen Nitrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Most poisonous pollutant in water is Arsenic Zinc Detergent Phosphate Arsenic Zinc Detergent Phosphate ANSWER DOWNLOAD EXAMIANS APP
Chemistry The items amenable to detection by soft x-rays are narcotics genuine coins from counterfeit coins lead in bullets contrabands narcotics genuine coins from counterfeit coins lead in bullets contrabands ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following elements is non-radioactive ? Plutonium Thorium Uranium Zirconium Plutonium Thorium Uranium Zirconium ANSWER DOWNLOAD EXAMIANS APP
Chemistry The lightest gas which is non-inflammable is Hydrogen Oxygen Nitrogen Helium Hydrogen Oxygen Nitrogen Helium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Burning pyrites ore gives out Nitrogen dioxide gas Carbon dioxide gas Sulphur dioxide gas Nitric oxide gas Nitrogen dioxide gas Carbon dioxide gas Sulphur dioxide gas Nitric oxide gas ANSWER DOWNLOAD EXAMIANS APP