Chemistry A balloon filled with helium rises in air because Helium is less dense than air The balloon is weightless Air exerts an upward force on the balloon Helium pushes down on the air below the balloon Helium is less dense than air The balloon is weightless Air exerts an upward force on the balloon Helium pushes down on the air below the balloon ANSWER DOWNLOAD EXAMIANS APP
Chemistry The gas which emits from rice field is Ethane Methane All of these Nitrogen Ethane Methane All of these Nitrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Sodium Carbonate is commonly known as Caustic Potash Baking Soda Caustic Soda Washing Soda Caustic Potash Baking Soda Caustic Soda Washing Soda ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following metals is used to galvanise iron ? Mercury Copper Zinc Lead Mercury Copper Zinc Lead ANSWER DOWNLOAD EXAMIANS APP
Chemistry A mixture of water and alcohol can be separated by Distillation Filtration Evaporation Decantation Distillation Filtration Evaporation Decantation ANSWER DOWNLOAD EXAMIANS APP
Chemistry In electro-refining, the pure metal is deposited on Vessel Cathode Anode Electrolyte Vessel Cathode Anode Electrolyte ANSWER DOWNLOAD EXAMIANS APP
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