NTA Abhyas 2020
- Exam
- NTA Abhyas
- Year
- 2020
- Subject
- Chemistry
- Chapter
- Environmental Chemistry
NTA Abhyas 2020 · Chemistry · Environmental Chemistry
The concentration of fluoride, lead, nitrate and iron in a water...
The concentration of fluoride, lead, nitrate and iron in a water sample from an underground lake was found to be 1000 ppb, 40 ppb, 100 ppm and 0.2 ppm, respectively. This water is unsuitable for drinking due to high concentration of
Options
- AIron
- BFluoride
- CLead
- DNitrate
Correct answer
D. Nitrate
Step-by-step solution
| Parameters | Maximum prescribed conc. in drinking water |
| Iron | 0.2 ppm |
| Fluoride | 1.5 ppm |
| Lead | 50 ppb |
| Nitrate |
Hence the concentration of nitrate in a given water sample exceeds from the upper limit as given above.