Chemistry and Environmental Pollution Quiz
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Questions and Answers

Which gas causes ozone depletion?

  • CFCs (correct)
  • Furan
  • CO
  • CO2

    • What type of air pollutants are oxides of nitrogen classified as?

  • Secondary air pollutants (correct)
  • Primary air pollutants

    • Which gas is toxic to humans and causes suffocation?

  • NOx
  • CO2
  • CO (correct)
  • Dioxin

    • Which of the following is not an SI unit?

    <p>Calorie</p> Signup and view all the answers

    What is the Tropospheric process?

    <p>Photochemical Smog</p> Signup and view all the answers

    Is ozone O3 considered a pollutant?

    <p>Yes</p> Signup and view all the answers

    What is the molecular weight of hydrogen atom H?

    <p>1 g/mol</p> Signup and view all the answers

    What gas has a molecular weight of 17 g/mol?

    <p>Ammonia</p> Signup and view all the answers

    How is the concentration of iron metal in waste water calculated?

    <p>ppm = mg/L</p> Signup and view all the answers

    How is the concentration of liquid acid in drinking water calculated?

    <p>ppm = mg/L</p> Signup and view all the answers

    What is the abbreviation for the mixture of benzene, toluene, and xylene?

    <p>BTX</p> Signup and view all the answers

    What is the abbreviation for non-methane hydrocarbons?

    <p>NMHC</p> Signup and view all the answers

    What is the correct equation to measure the concentration of the main toxic material produced?

    <p>mg/L</p> Signup and view all the answers

    Why did the Environmental Impact Assessment of the food industry using Gasoline as a fuel fail?

    <p>Significant toxic gases in gaseous emissions</p> Signup and view all the answers

    In gaseous treatment methods for a food industry with low NOx, which is the proper first and second stage combination?

    <p>Electrostatic Precipitator (ESP) then Wet Scrubber</p> Signup and view all the answers

    Which method is commonly used to reduce air pollution in petrochemical factories?

    <p>Selective catalytic reduction (SCR)</p> Signup and view all the answers

    What is the most likely unit to measure the concentration of furan particulates mixed within gaseous emissions?

    <p>$ ext{mg/m}^3$</p> Signup and view all the answers

    What is a potential consequence of mixing different gaseous emissions from various production lines in a petrochemical factory?

    <p>Higher complexity in treating combined emissions</p> Signup and view all the answers

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