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  1. The purpose of adding Na2CO3 to water of low alkalinity is to

    2. A.
    permit the use of alum as a coagulant.
    B.
    increase the softening capacity of zeolite.
    C.
    facilitate easy regeneration of zeolite.
    D.
    all (a), (b) and (c).

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    Answer : Option A

    Explanation :

    No answer description available for this question.

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