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Question paper save my exams the home of revision

Save My Exams ?? The Home of Revision For more awesome GCSE and A level resources visit us at www savemyexams co uk Level Subject Exam Board Topic Sub-Topic Booklet Air Question Paper O Level Chemistry Cambridge International Examinations Atmosphere and Environment Air Question Paper Time Allowed Score Percentage minutes CSave My Exams ?? The Home of Revision For more awesome GCSE and A level resources visit us at www savemyexams co uk The table shows the composition of exhaust gases from an internal combustion engine What is gas Y A ammonia B argon C chlorine D nitrogen Which two gases do not damage limestone buildings A nitrogen and carbon monoxide B nitrogen dioxide and carbon monoxide C nitrogen dioxide and carbon dioxide D sulfur dioxide and carbon dioxide What are the products of photosynthesis A carbon dioxide and oxygen B carbon dioxide and water C glucose and water D glucose and oxygen CSave My Exams ?? The Home of Revision For more awesome GCSE and A level resources visit us at www savemyexams co uk When a volcano erupts which gas is produced in signi ?cant amounts A carbon monoxide B methane C ozone D sulfur dioxide Which atmospheric pollutant is produced by bacterial decay of vegetable matter A carbon monoxide B methane C ozone D sulfur dioxide CFC compounds were commonly used as aerosol propellants The structure of one CFC compound is shown F Cl FCCH FH Which element in this compound causes a depletion of ozone in the atmosphere A carbon B chlorine C uorine D hydrogen Which gas is most likely to react with limestone A ammonia B carbon monoxide C methane D sulfur dioxide CSave My Exams ?? The Home of Revision For more awesome GCSE and A level resources visit us at www savemyexams co uk The noble gases argon helium krypton and xenon are present in air Which noble gas is present in the largest proportion A argon B helium C krypton D xenon Which gas will react with ozone in the upper atmosphere of the Earth A CF Cl B CH C CO D SO Which pair of gases could be removed from the atmosphere using calcium carbonate A CO and O B CO and SO C CH and NO D NO and SO Which gas can be removed from the exhaust gases of a petrol-powered car by its catalytic converter A carbon monoxide B carbon dioxide C nitrogen D steam CSave My Exams ?? The Home of Revision For more awesome GCSE and A level resources visit us at www savemyexams co uk Which row shows both the correct source and the correct e ?ect of the named pollutant pollutant source e ?ect A carbon monoxide incomplete combustion of global warming carbon- containing materials B oxides of nitrogen decaying vegetable matter global warming C ozone photochemical reactions acid rain D sulfur dioxide volcanoes acid rain The gases coming from a car ? s exhaust contain oxides of nitrogen How are these