The concentration of fluoride, lead, nitrate and iron in a water sample from an underground lake was found to be 1000 ppb,

Question:

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 :- 

  1. Iron

  2. Fluoride

  3. Lead

  4. Nitrate


Correct Option: , 4

Solution:

Leave a comment

Close
faculty

Click here to get exam-ready with eSaral

For making your preparation journey smoother of JEE, NEET and Class 8 to 10, grab our app now.

Download Now