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JEE Main & Advanced Chemistry Environmental Chemistry / पर्यावरणीय रसायन Question Bank Mock Test - Environmental Chemistry

  • question_answer
    The concentration of fluoride, lead, nitrate and iron in a water sample from an underground lake was found to be 1000 ppb, 40 ppb, 100 ppm and 0.2 ppm, respectively. This water is unsuitable for drinking due to high concentration of

    A) Iron                  

    B) Fluoride

    C) Lead                

    D) Nitrate

    Correct Answer: D

    Solution :

    [d]
    Parameters Maximum prescribed cone. in drinking water
    Iron 0.2 ppm
    Fluoride 1.5 ppm
    Lead 50 ppb
    Nitrate 50 ppm
    (Greater than this causes blue baby syndrome) Hence the concentration of nitrate in a given water sample exceeds from the upper limit as given above.


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