Chemistry The highest volume of gases in lower atmosphere is comprised of Nitrogen Hydrogen Oxygen Carbon dioxide Nitrogen Hydrogen Oxygen Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry The most common cause of pollution of air is Carbon dioxide Carbon monoxide Sulphur dioxide Smoke Carbon dioxide Carbon monoxide Sulphur dioxide Smoke ANSWER DOWNLOAD EXAMIANS APP
Chemistry The main constituent of biogas is Oxygen Acetic acid Methyl alcohol Methane Oxygen Acetic acid Methyl alcohol Methane ANSWER DOWNLOAD EXAMIANS APP
Chemistry When conc. H2SO4 is added to dry KNO3, brown fumes are evolved. These fumes are due to N2O SO2 SO3 NO2 N2O SO2 SO3 NO2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Drinking soda is Alkaline Oxidant Neutral Acidic Alkaline Oxidant Neutral Acidic ANSWER DOWNLOAD EXAMIANS APP
Chemistry A balloon filled with helium rises in air because Air exerts an upward force on the balloon Helium is less dense than air Helium pushes down on the air below the balloon The balloon is weightless Air exerts an upward force on the balloon Helium is less dense than air Helium pushes down on the air below the balloon The balloon is weightless ANSWER DOWNLOAD EXAMIANS APP
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