Chemistry Besides CO2, the other green house gas is Ar Ar N2 N2 O2 CH4 Ar Ar N2 N2 O2 CH4 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Helium gas is used in gas balloons instead of hydrogen gas because it is Lighter than hydrogen Non-combustible More stable More abundant than hydrogen Lighter than hydrogen Non-combustible More stable More abundant than hydrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry A balloon filled with helium rises in air because The balloon is weightless Helium pushes down on the air below the balloon Air exerts an upward force on the balloon Helium is less dense than air The balloon is weightless Helium pushes down on the air below the balloon Air exerts an upward force on the balloon Helium is less dense than air ANSWER DOWNLOAD EXAMIANS APP
Chemistry White phosphorus is always kept under Ether Kerosene Benzene Water Ether Kerosene Benzene Water ANSWER DOWNLOAD EXAMIANS APP
Chemistry The main source of Naphthalene is Diesel Charcoal Camphor Coal-tar Diesel Charcoal Camphor Coal-tar ANSWER DOWNLOAD EXAMIANS APP
Chemistry The percentage of Nitrogen in Air is 0.03 85.02 0.94 78.03 0.03 85.02 0.94 78.03 ANSWER DOWNLOAD EXAMIANS APP
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