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Discussion :: Environmental Engineering - Civil Engineering

  1. Alum as a coagulant is found to be most effective when pH range of water is

    2. A.

     2 to 4
    B.

     4 to 6
    C.

     6 to 8
    D.

     8 to 10

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    Answer : Option C

    Explanation :

    Explanation Not Provided

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