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Discussion :: Environmental Engineering - Civil Engineering

  1. Orthotolidine test is used for determination of

    2. A.

     Dissolved oxygen
    B.

     Residual chlorine
    C.

     Biochemical oxygen demand
    D.

     Dose of coagulant

    View Answer

    Workspace

    View Answer

    Answer : Option B

    Explanation :

    Explanation Not Provided

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