JEE PYQ: Environmental Chemistry Question 17
Question 17 - 2020 (09 Jan Shift 2)
Biochemical Oxygen Demand (BOD) is the amount of oxygen required (in ppm):
(1) for sustaining life in a water body.
(2) by bacteria to break-down organic waste in a certain volume of a water sample.
(3) for the photochemical breakdown of waste present in 1 $\text{m}^3$ volume of a water body.
(4) by anaerobic bacteria to breakdown inorganic waste present in a water body.
Show Answer
Answer: (2)
Solution
Biochemical oxygen demand is the amount of oxygen required by bacteria to break down the organic matter present in a given volume of a sample of water.
BETA
