How many molecules are present in 22.4 L of an ideal gas at STP?
3.011 x 10²³
6.022 x 10²³
1.204 x 10²⁴
2.408 x 10²⁴
Related Questions
BOD may not be a good index for pollution for water bodies receiving effluents from?
Petroleum industry
Sugar industry
Domestic
Dairy industry
Biochemical Oxygen Demand (BOD) in a river water
Has no relationship with concentration of oxygen in the water
Gives a measure of Salmonella in the water
Increases when sewage gets mixed with river water
Remains unchanged when algal bloom occurs
Consider the following statement
I. Biochemical Oxygen Demand (BOD) represents the amount of dissolved oxygen that would be consumed if all the organic matter in 1 L of water were oxidized by microorganism
II. Low value of BOD means the water is either normal or less polluted by organic matter
III. High value of BOD means the water in highly polluted by organic matter
Which of statement given above are correct?
I and II
I and III
II and III
I, II and III
BOD of waste water is estimated by measuring the amount of
Nitrogen consumed
Oxygen consumed
Carbon dioxide produced
Methane produced
Discharge of sewage in water bodies does not leads to
Cultural eutrophication
Drop in DO
Increase in BOD
Biomagnification
The greater BOD of water relates
Increases oxygen content of water
Decreases oxygen content of water
The decrease of temperature of water
All of these
BOD of waste water is estimated by measuring the amount of?
Total organic matter
Biodegradable organic matter
Oxygen evolution
consumption
Consider the following statement
I. Biochemical Oxygen Demand (BOD) represents the amount of dissolved oxygen that would be consumed if all the organic matter in 1 L of water were oxidized by microorganism
II. Low value of BOD means the water is either normal or less polluted by organic matter
III. High value of BOD means the water in highly polluted by organic matter
Which of statement given above are correct?
I and II
I and III
II and III
I, II and III
BOD of waste water is estimated by measuring the amount of
Total organic matter
Biodegradable organic matter
Oxygen evolution
Oxygen consumption
