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 (D)</p> Signup and view all the answers

What is the Tropospheric process?

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

Is ozone O3 considered a pollutant?

<p>Yes (A)</p> Signup and view all the answers

What is the molecular weight of hydrogen atom H?

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

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

<p>Ammonia (C)</p> Signup and view all the answers

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

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

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

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

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

<p>BTX (D)</p> Signup and view all the answers

What is the abbreviation for non-methane hydrocarbons?

<p>NMHC (A)</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 (C)</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 (C)</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 (A)</p> Signup and view all the answers

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

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

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