Match the LIST-I with LIST-II LIST-I (Water Quality Parameters) A. BOD B. DO…
2024
Match the LIST-I with LIST-II
LIST-I
(Water Quality Parameters)
A. BOD
B. DO
C. COD
D. pH
LIST-II
(Explanation)
I. Strength of organic matter in water
II. Acidic/Basic/Neutral nature of water
III. Oxygen consumed by micro-organisms
IV. Amount of oxygen in water
Choose the correct answer from the options given below:
- A.
A-III, B-IV, C-II, D-I
- B.
A-III, B-IV, C-I, D-II
- C.
A-I, B-II, C-III, D-IV
- D.
A-I, B-II, C-IV, D-III
Attempted by 27 students.
Show answer & explanation
Correct answer: B
Correct matching and explanations:
BOD — Oxygen consumed by micro-organisms. BOD (Biochemical Oxygen Demand) measures the amount of dissolved oxygen that aerobic biological organisms use to break down organic material present in a water sample.
Dissolved Oxygen (DO) — Amount of oxygen in water. DO indicates the concentration of oxygen available for aquatic organisms.
Chemical Oxygen Demand (COD) — Strength of organic matter in water. COD measures the total quantity of oxygen required to chemically oxidize organic compounds in water, giving an estimate of organic pollution load.
pH — Acidic/Basic/Neutral nature of water. pH measures hydrogen ion concentration and indicates whether the water is acidic, neutral, or alkaline.
Therefore the correct pairings are: BOD → oxygen consumed by micro-organisms; Dissolved Oxygen → amount of oxygen in water; COD → strength of organic matter; pH → acidic/basic/neutral nature.
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