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    Question

    The critical limit for NO3-N (mg/litre) in drinking

    water (as per WHO standard is:
    A 5 Correct Answer Incorrect Answer
    B 10 Correct Answer Incorrect Answer
    C 15 Correct Answer Incorrect Answer
    D 20 Correct Answer Incorrect Answer

    Solution

    As per WHO standard, the critical limit for NO3-N (mg/litre) in drinking water is 10mg/l.┬а

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