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.

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