Home Chemistry Enviromental Chemistry ( Not In Syllabus ) Water pollution, Soil Pollution and Waste Management Biological oxygen Demand (BOD) can be define…
Chemistry Enviromental Chemistry ( Not In Syllabus ) Water pollution, Soil Pollution and Waste Management Single Correct MCQ
Published on: August 12, 2026

Biological oxygen Demand (BOD) can be defined as,

A
The amount of oxygen required by bacteria to break down the organic matter of a sample of water
B
The amount of chemicals required to break down the organic matter of a sample of water
C
The amount of phosphate required to oxidize the organic matter of a sample of water.
D
The amount of organic matter present in the given sample of water.

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The correct answer is:
A

: The amount of BOD in water is the measure of the amount of organic matter in water in terms of how much oxygen is required to break it down biologically.

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