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Environmental Chemistry: Water
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Environmental Chemistry: Water
Process in which water is treated with slaked lime and alum is called
sedimentation
coagulation
filtration
chlorination
Author:
rikazzz
Comment
Environmental Chemistry: Water
What percentage of fresh water is available to man?
0.2
0.02
0.002
0.0002
Author:
rikazzz
Comment
Environmental Chemistry: Water
What is the second step of raw water treatment?
sedimentation
coagulation
filtration
chlorination
Author:
rikazzz
Comment
Environmental Chemistry: Water
Step of sewage water treatment in which some of the solids are removed as sludge is called
primary sewage treatment
secondary sewage treatment
activated sludge treatment
chlorination
Author:
rikazzz
Comment
Environmental Chemistry: Water
Addition of washing soda removes
softness of water
temporary hardness of water
permanent hardness of water
hydrogen from water
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rikazzz
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Environmental Chemistry: Water
Which of the following is an acute inflammation of the liver?
cholera
dysentery
jaundice
hepatitis
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rikazzz
Comment
Environmental Chemistry: Water
Process in which water is allowed to stand in a reservoir is called
sedimentation
coagulation
filtration
chlorination
Author:
rikazzz
Comment
Environmental Chemistry: Water
Hard water can block radiators due to the formation of
insoluble calcium and magnesium salts
insoluble sodium salts
insoluble phosphate salts
insoluble potassium salts
Author:
rikazzz
Comment
Environmental Chemistry: Water
Step of sewage water treatment in which sewage is placed in tanks and aerated with large blowers is called
primary sewage treatment
secondary sewage treatment
activated sludge treatment
chlorination
Author:
rikazzz
Comment
Environmental Chemistry: Water
What is the fourth step of raw water treatment?
sedimentation
coagulation
filtration
chlorination
Author:
rikazzz
Comment
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