Computer · Environmental Engineering
पेयजल के लिए भारतीय मानक विशिष्टताओं (IS 10500) के अनुसार, पेयजल में pH मान की वांछनीय सीमा क्या है?
- 16.5 से 8.5✓
- 22.5 से 5.5
- 34.5 से 7.5
- 43.5 से 6.5
सही उत्तर देखें
6.5 से 8.5
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