The concentration of dissolved oxygen in water ranges from:
Correct answer: A. 4-8 ppm
- A. 4-8 ppm
- B. 6-10 ppm
- C. 8-10 ppm
- D. 0.4-0.8 ppm
Explanation
In water the most important oxidizing agent is dissolved molecular oxygen (O2) the concentration of which ranges from 4 - 8 ppm. The organic matter is oxidized with the help of this dissolved oxygen in water.It is a parameter to determine the quality of water. The dissolved oxygen value less than 4 ppm indicates that water is polluted.
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