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6. 'Colloidal dispersion of fine solid particles or liquid droplets, in air or another gas' describes what?

  • Dispersion
  • Osmosis
  • Aerosols
  • Gases

7. What is the symbol for ozone

  • O3
  • O2
  • O

8. Ozone is a harmful biproduct of what?

  • Combustion
  • Photochemical smog
  • Green house effect

9. Which are more concerning within the troposphere?

  • Gases that may harm human health
  • Green house gases
  • The Green house effect

10. How many points of unsaturation does an alkene have?

  • 1
  • 2
  • 3

11. In terms of the main constituents, are the stratosphere and troposphere similar?

  • Yes
  • No

12. Combustion burns what?

  • Nitrogen
  • Hydrocarbons
  • Oxygen
  • Fuel chains

13. 'haze in the atmosphere accompanied by high levels of ozone and nitrogen oxides, caused by the action of sunlight on pollutants' is the definition for what?

  • Photochemical smog
  • Redox light reactions
  • Green house effect

14. Ozone prevents what?

  • Lots of UV radiation reaching Earth's surface
  • Global cooling
  • Lots of infrared reaching Earth's surface
  • The albedo effect

15. Organic molecules have what kind of bonds?

  • Carbon bonds
  • Covalent bonds
  • Hydrogen bonds

16. Should ozone be in the troposphere?

  • No
  • Yes

17. Which of the following is not a ozone reducing species?

  • C2H2 F4
  • CHF2H2
  • CFCl3
  • CHF2Cl

18. What kind of process is combustion?

  • Displacement
  • Replacement
  • Redox
  • Neutralising

19. An Alkene has a double or triple bond?

  • Double
  • Triple

20. Can carbon bond to itself?

  • Yes
  • No