Chemistry Which of the following gases is mixed with oxygen for breathing by divers in aqua lungs? Hydrogen Nitrogen Helium Methane Hydrogen Nitrogen Helium Methane ANSWER DOWNLOAD EXAMIANS APP
Chemistry In a Carbonyl group a carbon atom makes double bond with Oxygen Hydrogen Carbon None of these Oxygen Hydrogen Carbon None of these ANSWER DOWNLOAD EXAMIANS APP
Chemistry The percentage of Nitrogen in Air is 0.94 78.03 85.02 0.03 0.94 78.03 85.02 0.03 ANSWER DOWNLOAD EXAMIANS APP
Chemistry A metal is exposed to the atmosphere for sometime. It becomes coated with green carbonate. The metal must be Silver Zinc Copper Aluminium Silver Zinc Copper Aluminium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Ultraviolet radiation striking the earth is due to the depletion of Carbon dioxide Carbon monoxide Oxygen Ozone Carbon dioxide Carbon monoxide Oxygen Ozone ANSWER DOWNLOAD EXAMIANS APP
Chemistry Milk is a natural Mixture Solution Emulsion Suspension Mixture Solution Emulsion Suspension ANSWER DOWNLOAD EXAMIANS APP
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