AP EAMCET · Chemistry · Environmental Chemistry
Which of the following is/are estimated by titrating polluted water with potassium dichromate solution in acidic medium?
\begin{array}{|c|c|c|}\hline COD & BOD & DO \\\hline I & II & III \\\hline\end{array}
- A I only
- B II only
- C II & III only
- D I,II,III
Answer & Solution
Correct Answer
(A) I only
Step-by-step Solution
Detailed explanation
The COD (chemical oxygen demand) test is widely used as an alternative to BOD test 10 estimate the strength of domestic and industrial waste as COD test can give result in few hours as compared to BOD (Biological Oxygen Demand) test which takes normally 5 days. It use potassium…
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