Chemistry · Environmental Chemistry
भारतीय मानक ब्यूरो (BIS) के पेयजल विशिष्टताओं के अनुसार, निम्नलिखित में से किस धातु को पीपीएम (mg/L) में उसकी अधिकतम निर्धारित वांछनीय सीमा के साथ सही ढंग से जोड़ा गया है?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Al – 7.0
- 2Mn – 0.07
- 3Cu – 5.0
- 4Fe – 0.3✓
सही उत्तर देखें
Fe – 0.3
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