Ap Eapcet
Environmental Chemistry
AP EAPCET 2024 - 22th May Morning Shift
MCQ+1 / -02024
Which of the following is/are estimated by tura polluted water with potassium dichromate solution in acidic medium?
$$ \begin{array}{c|c|c} \hline \text { COD } & \text { BOD } & \text { DO } \\ \hline \text { I } & \text { II } & \text { III } \\ \hline \end{array} $$