The desirable range of pH for drinking water is6-5 to 8'55-0 to 6'56'5 to 7-07-0 to 8-5

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Submitted by examrobotsa on Thu, 01/01/1970 - 05:30

question_year:

2017

question_exam:

NDA-II

Q: 89 (NDA-II/2017)