Saved Bookmarks
| 1. |
A water sample has ppm level concentration of the following metals : Fe = 0.2; Mn = 5.0; Cu = 3.0; Zn = 5.0. The metal that makes the water sample unsuitable drinking is (1) Zn (2) Fe (3) Mn (4) Cu |
|
Answer» Correct option (3) Mn Explanation: (i) zn 5.0 ppm (ii) Fe 0.2 ppm (iii) Mn 5.0 ppm (iv) Cu 3.0 ppm |
|