Presence of which makes water unsuitable for drinking.
Fe = 0.2 ppm
Cu = 2 ppm
Mn = 0.5 ppm
Zn = 0.05 ppm
Explanation of correct answer:-
Option (C):
Therefore, option (C) is the correct answer.
A water sample has ppm level concentration of following anions
F-=10;SO42-=100;NO3-=50
The anion/ anions that makes the water sample unsuitable for drinking is/are: