Match the pollutant in List I with its maximum permissible limit in drinking water given in List II…
Match the pollutant in List I with its maximum permissible limit in drinking water given in List II
$\begin{array}{|l|l|l|l|}\hline & \text{List-I} & & \text{List-II} \\ \hline \text{A.} & \text{Lead} & \text{I} & 500 \text{ ppm} \\ \hline \text{B.} & \text{Sulphate} & \text{II} & 50 \text{ ppm} \\ \hline \text{C.} & \text{Nitrate} & \text{III} & 50 \text{ ppb} \\ \hline\end{array}$ Correct answer is
A-II, B-III, C-I
A-II, B-I, C-III
A-III, B-I, C-II
A-III, B-II, C-I
Solution
The maximum permissible limit in drinking water
supply are:-
Sulphates $\leq 200$ ppm
Chlorides $\leq 250 \mathrm{ppm}$
Nitrates $\leq 45 \mathrm{ppm}$
lead $\leq 50 \mathrm{ppb}$
Fluorides $\leq 1.5 \mathrm{ppm}$