Gasses Mcqs 61- Which gas is responsible for the smell of rotten eggs? A. OxygenB. MethaneC. NitrogenD. Hydrogen sulfide View Answer Answer : D. Hydrogen sulfide Description 62- Which gas is produced by volcanic eruptions and can be toxic? A. NitrogenB. Sulfur dioxideC. OxygenD. Helium View Answer Answer : B. Sulfur dioxide Description 63- Which gas is used in refrigeration systems? A. OxygenB. HydrogenC. AmmoniaD. Carbon dioxide View Answer Answer : C. Ammonia Description 64- Which gas is inhaled during scuba diving to avoid nitrogen narcosis? A. NeonB. XenonC. HeliumD. Methane View Answer Answer : C. Helium Description 65- Which gas is collected from cow dung in biogas plants? A. MethaneB. MethaneC. HydrogenD. Carbon dioxide View Answer Answer : B. Methane Description 66- What is the main component of natural gas? A. MethaneB. EthaneC. ButaneD. Propane View Answer Answer : A. Methane Description 67- Which gas is used in anesthesia during surgery? A. OxygenB. HydrogenC. Carbon dioxideD. Nitrous oxide View Answer Answer : D. Nitrous oxide Description 68- Which gas is used to fill car airbags? A. HeliumB. NitrogenC. HydrogenD. Nitrogen gas View Answer Answer : D. Nitrogen gas Description 69- Which gas is used in the food industry to ripen fruits? A. OxygenB. EthyleneC. HydrogenD. Carbon dioxide View Answer Answer : B. Ethylene Description 70- Which gas is toxic and can bind with hemoglobin more strongly than oxygen? A. HeliumB. NitrogenC. HydrogenD. Carbon monoxide View Answer Answer : D. Carbon monoxide Description 71- Which noble gas is used in eye surgeries and lasers? A. ArgonB. NeonC. XenonD. Helium View Answer Answer : A. Argon Description 72- Which gas is known for its inertness? A. ArgonB. OxygenC. MethaneD. Carbon dioxide View Answer Answer : A. Argon Description 73- Which gas is used as a tracer in oceanography and hydrology? A. EthaneB. HeliumC. MethaneD. Hydrogen View Answer Answer : B. Helium Description 74- Which gas is most commonly used in the semiconductor industry? A. OxygenB. HydrogenC. NitrogenD. Carbon dioxide View Answer Answer : C. Nitrogen Description 75- Which gas causes acid rain when released into the atmosphere? A. NeonB. HeliumC. NitrogenD. Sulfur dioxide View Answer Answer : D. Sulfur dioxide Description 76- What gas is commonly released from landfills? A. OxygenB. MethaneC. HydrogenD. Carbon monoxide View Answer Answer : B. Methane Description 77- Which gas is used in cryogenics for freezing? A. OxygenB. NitrogenC. HydrogenD. Liquid helium View Answer Answer : D. Liquid helium Description 78- Which gas causes the blue color of the Earth’s sky? A. OxygenB. Scattering by gasesC. NitrogenD. Carbon dioxide View Answer Answer : B. Scattering by gases Description 79- Which gas is responsible for ozone layer depletion? A. CFCsB. OxygenC. MethaneD. Hydrogen View Answer Answer : A. CFCs Description 80- Which gas is used in deep-sea diving mixtures? A. NeonB. XenonC. HeliumD. Oxygen only View Answer Answer : C. Helium Description 1 2 3 4 5 6 7 8
