Chemistry A balloon filled with helium rises in air because 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 The balloon is weightless Helium pushes down on the air below the balloon ANSWER DOWNLOAD EXAMIANS APP
Chemistry Sodium is produced by the electrolysis of Molten sodium carbonate Molten sodium chloride Aqueous brine solution Its cyanide complex Molten sodium carbonate Molten sodium chloride Aqueous brine solution Its cyanide complex ANSWER DOWNLOAD EXAMIANS APP
Chemistry The gas used for artificial fruit ripening of green fruit is Acetylene Ethane Ethylene Methane Acetylene Ethane Ethylene Methane ANSWER DOWNLOAD EXAMIANS APP
Chemistry Copper is refined by Roasting Zone refining Oxidation Electrolysis Roasting Zone refining Oxidation Electrolysis ANSWER DOWNLOAD EXAMIANS APP
Chemistry The number of g-molecule of oxygen in 6.02 x 1024CO molecules is 10 gram of molecule 5 gram of molecule 0.5 gram of molecule 1 gram of molecule 10 gram of molecule 5 gram of molecule 0.5 gram of molecule 1 gram of molecule ANSWER DOWNLOAD EXAMIANS APP
Chemistry 1 carat of diamond is equal to 100 mg 200 mg 100 g 200 g 100 mg 200 mg 100 g 200 g ANSWER DOWNLOAD EXAMIANS APP
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