Chemistry A balloon filled with helium rises in air because Helium is less dense than air Helium pushes down on the air below the balloon Air exerts an upward force on the balloon The balloon is weightless Helium is less dense than air Helium pushes down on the air below the balloon Air exerts an upward force on the balloon The balloon is weightless ANSWER DOWNLOAD EXAMIANS APP
Chemistry The chemical used in developing photographic films is Hypo Silver bromide Sodium sulphate Hydroquinone Hypo Silver bromide Sodium sulphate Hydroquinone ANSWER DOWNLOAD EXAMIANS APP
Chemistry Coal is formed from Coke Crude oil Deposit of animal waste Compressed and hardened biomass Coke Crude oil Deposit of animal waste Compressed and hardened biomass ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is a man-made source of air pollution ? Forest fire All of these Automobile exhaust Bacterial action in soil and swamp areas Forest fire All of these Automobile exhaust Bacterial action in soil and swamp areas ANSWER DOWNLOAD EXAMIANS APP
Chemistry Denatured spirit is ethanol mixed with Petrol Pyridine Kerosene Water Petrol Pyridine Kerosene Water ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is the best fuel in terms of energy released per gram of fuel? Hydrogen Ethanol Butane Methane Hydrogen Ethanol Butane Methane ANSWER DOWNLOAD EXAMIANS APP
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