JEE Main20209 Jan 2020Evening ShiftChemistryEnvironmental ChemistryActual
Biochemical Oxygen Demand B O D is the amount of oxygen required (in p p m ):
Options
- Afor sustaining life in a water body.
- Bby bacteria to break-down organic waste in a certain volume of a water sample.
- Cfor the photochemical breakdown of waste present in 1 m 3 volume of a water body
- Dby anaerobic bacteria to breakdown. inorganic waste present in a water body.
Correct answer
B. by bacteria to break-down organic waste in a certain volume of a water sample.
Step-by-step solution
The amount of oxygen required by bacteria to break down the organic matter present in a certain volume of a sample of water, is called Biochemical oxygen Demand (BOD).