WorksheetsAir & Atmosphere
Total questions: 9
Worksheet time: 8mins
Which of the following gases is not responsible for the formation of photochemical smog?
Methane
Ozone
Oxides of nitrogen
Sulfur dioxide
What is a natural source of sulfur dioxide pollution in the atmosphere?
Lightning
Volcanoes
Combustion of diesel fuel
Incomplete combustion of methane
The above gases are present in car exhaust fumes.
Which of these gases is also present in unpolluted air?
Nitrogen only
Nitrogen and water vapour only
Nitrogen, carbon dioxide and water vapour only
Nitrogen, carbon monoxide, carbon dioxide and water vapour only
Which of the following human activities does not cause global warming?
Disposing CFC refrigerants in incinerators.
Disposal of organic waste in landfills.
Burning of fossil fuels.
Destruction of forests.
Which pollutants can be removed from the chimney gases of factories and power stations by treatment with calcium carbonate?
methane and ozone
carbon monoxide and sulfur dioxide
nitrogen dioxide and sulfur dioxide
sulfur dioxide only
A student set up an experiment as shown below, to investigate the substances formed when methane burns in air.
(a) Name the liquid P collected in tube A.
Liquid Q is put into tube B to test for carbon dioxide.
(i) Name liquid Q.
(ii) What would you expect to see in tube B during the experiment?
Write a balanced chemical equation, with state symbols, for the complete combustion of methane in air.
A colourless gas is produced in the experiment, which is different from the substances in the equation in (c). This gas could be harmful to the student.
Name this substance and state how it might be harmful to the student. [2]
