The Environmental Chemistry 2: Water

Which method is used to remove temporary hardness of water?

 
 
 
 

Which is used to remove permanent hardness in water?

 
 
 
 

Which of the following is a method of desalination?

 
 
 
 

A chemical used to disinfect water in treatment plants is

 
 
 
 

The chemical formula of slaked lime is

 
 
 
 

The process of passing water through sand and gravel to remove impurities is called

 
 
 
 

Hard water affects soap by

 
 
 
 

Which salt causes temporary hardness in water?

 
 
 
 

Which salt does not cause the water to become hard?

 
 
 
 

Which human activity results in contamination of water bodies?

 
 
 
 

Percentage of sodium chloride in sea water is

 
 
 
 

The density of water is maximum at

 
 
 
 

Which of the followings is not a waterborne disease?

 
 
 
 

Heating calcium hydrogen carbonate produces

 
 
 
 

Which gas is responsible for acid rain?

 
 
 
 

Permanent hardness of water is due to the presence of

 
 
 
 

The chemical formula of slaked lime is

 
 
 
 

Which process is used to remove suspended impurities from water?

 
 
 
 

Question 1 of 18

Related Questions:

  1. ENVIRONMENTAL CHEMISTRY-AIR
  2. ENVIRONMENTAL CHEMISTRY-WATER
  3. List two main sources of acid rain.
  4. List four human activities that contribute to air pollution.
  5. What is the importance of stratospheric ozone?
  6. What is the role of automobiles in air pollution?
  7. Define atmosphere.
  8. Explain temperature variation in the stratosphere and troposphere.
  9. List the components of the stratosphere and troposphere.
  10. Describe the sources of air pollutants.
  11. Describe acid rain and its effects.
  12. Describe ozone depletion and its effects.
  13. Describe global warming.
  14. Explain ozone formation.
  15. Differentiate between the stratosphere and the troposphere.
  16. Explain the greenhouse effect and its impact on global warming.
  17. Describe the causes and effects of air pollution.
  18. Why is global warming often referred to as the greenhouse effect?
  19. There is scientific evidence that CFCs contribute to the depletion of ozone. Why?
  20. Sulfur dioxide is a common pollutant from burning coal. State two effects caused by this pollutant.