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Discussion :: UPSC Civil Service Exam Questions

  1. Dechlorination of water is achieved by adding

  2. A.
    sodium thiosulphate
    B.
    sodium sulphate
    C.
    sodium hexametaphosphate
    D.
    sodium bisulphate

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    Answer : Option A

    Explanation :

    No answer description available for this question. Let us discuss.


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