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  4. Ecology And Environment

SSC Ecology And Environment Sample Paper NCERT Sample Paper-5

  • question_answer
    Which of the following is not used for the disinfection of drinking water?

    A)  Ozone 

    B)  phenyl

    C)  Chlorine           

    D)  chloramine

    Correct Answer: B

    Solution :

    [b] Phenyl is not used for the disinfection of drinking water because phenyl is very poisonous.


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