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Molarity

Biological Ox...

Question

Biological Oxygen Demand (BOD) of sewage water is related to

A

Presence of detergents

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B

Presence of fertilizers

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C

Presence of inorganic pollutants

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D

Presence of organic pollutants

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Solution

The correct option is D Presence of organic pollutants
Biological oxygen demand is the amount of dissolved oxygen available for the organisms to breakdown the organic pollutants. Hence, the correct option is D.

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Similar questions

Q. Read the following statements (A-D) related to Biochemical Oxygen Demand (BOD) and identify the correct option stating true (T) and false (F).

A. Biochemical oxygen demand is defined as the amount of dissolved oxygen needed by microorganisms in decomposing the inorganic wastes.
B. Greater the BOD of waste water, the higher is the amount of organic matter present.
C. The BOD increases with time as organic matter gets decomposed.
D. Sewage water is treated till the BOD is reduced

Q. The value of biological oxygen demand(BOD) of highly polluted water is:

Q. Q84. Consider the following statements:
1. Absence of organic and inorganic wastes in water decreases the dissolved Oxygen (DO) content of the water.
2. The demand for O2 is directly related to increasing input of organic wastes and is expressed as biological oxygen demand of water.
3. BOD is limited to biodegradable materials only.
Which of the above statement(s) is/are correct?

The amount of O₂ required by bacteria in water to breakdown wastes into simple inorganic substances is called

Q. BOD or Biological Oxygen Demand is the level of oxygen needed in the water body for organisms to survive.

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