Gasses Mcqs 81- Which gas increases during volcanic eruptions and affects the climate? A. HeliumB. OxygenC. NitrogenD. Carbon dioxide View Answer Answer : D. Carbon dioxide Description 82- Which gas is used to preserve packaged foods? A. HeliumB. OxygenC. NitrogenD. Carbon monoxide View Answer Answer : C. Nitrogen Description 83- Which gas is considered a noble gas? A. NeonB. NitrogenC. HydrogenD. Carbon dioxide View Answer Answer : A. Neon Description 84- Which gas is used in laser eye surgeries? A. NeonB. ArgonC. HeliumD. Hydrogen View Answer Answer : B. Argon Description 85- Which gas is found in the Earth's crust and is flammable? A. NeonB. OxygenC. NitrogenD. Methane View Answer Answer : D. Methane Description 86- Which gas is used in microwave ovens to support the magnetron? A. ArgonB. NeonC. HeliumD. No gas used View Answer Answer : D. No gas used Description 87- Which gas causes suffocation in closed spaces if it displaces oxygen? A. HeliumB. Carbon dioxideC. OxygenD. Nitrogen View Answer Answer : B. Carbon dioxide Description 88- Which gas is used in spacecraft for propulsion and attitude control? A. OxygenB. HeliumC. HydrazineD. Nitrogen View Answer Answer : C. Hydrazine Description 89- Which gas is most soluble in water among atmospheric gases? A. HeliumB. OxygenC. NitrogenD. Carbon dioxide View Answer Answer : D. Carbon dioxide Description 90- Which gas is responsible for the foul smell in decaying organic matter? A. AmmoniaB. HeliumC. NitrogenD. Hydrogen View Answer Answer : A. Ammonia Description 91- Which gas is used in medicine for lung function tests? A. HeliumB. HydrogenC. MethaneD. Carbon dioxide View Answer Answer : A. Helium Description 92- Which gas is responsible for global warming but not for ozone depletion? A. OxygenB. MethaneC. Carbon dioxideD. Chlorofluorocarbons View Answer Answer : C. Carbon dioxide Description 93- Which gas helps in fire combustion? A. HeliumB. OxygenC. HydrogenD. Carbon dioxide View Answer Answer : B. Oxygen Description 94- Which gas is odorless and colorless but highly flammable? A. HeliumB. NitrogenC. OxygenD. Hydrogen View Answer Answer : D. Hydrogen Description 95- Which gas is used to inflate aircraft life vests? A. HeliumB. Carbon dioxideC. OxygenD. Hydrogen View Answer Answer : B. Carbon dioxide Description 96- Which gas is heavier than air and used in party fog machines? A. HeliumB. OxygenC. NitrogenD. Carbon dioxide View Answer Answer : D. Carbon dioxide Description 97- Which gas is used in the manufacturing of fertilizers? A. HeliumB. OxygenC. AmmoniaD. Hydrogen View Answer Answer : C. Ammonia Description 98- Which gas is used in the purification of drinking water and in swimming pools? A. ChlorineB. MethaneC. NitrogenD. Ammonia View Answer Answer : A. Chlorine Description 99- Which gas is used in electric bulbs to prevent the filament from burning? A. ArgonB. OxygenC. NitrogenD. Hydrogen View Answer Answer : A. Argon Description 100- What gas is commonly known as “marsh gas”? A. ButaneB. EthaneC. PropaneD. Methane View Answer Answer : D. Methane Description 1 2 3 4 5 6 7 8
