AP EAMCET · Chemistry · Environmental Chemistry
Which one of the following statements is not correct?
- A \(\mathrm{NO}_2\) is a lung irritant
- B The municipal sewage has \(B O D\) value of \(100-4000\) ppm
- C Main source of CO is automobile exhaust fumes
- D COD is the measure of bacteria in water
Answer & Solution
Correct Answer
(D) COD is the measure of bacteria in water
Step-by-step Solution
Detailed explanation
In environmental chemistry, chemical oxygen demand (COD) is the total amount of oxygen, (in ppm) that would be consumed by pollutants in a given water sample measured solution. Thus, COD is useful in terms of water quality. Hence, option (d) is incorrect while the other given…
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