Question

Some of the water quality parameters are measured by titrating a water sample with a titrant. Group-I gives a list of parameters and Group-II gives the list of titrant.

$$\begin{array}{cc}\text{Groups - I}& \text{Groups - II}\\ \text{P. Alkalinity}& \text{1.}N/35.5AgN{O}_3\\ \text{Q. Hardness}& \text{2.}N/40N{a}_2{S}_2{O}_3\\ \text{R. Chloride}& \text{3.}{H}_{2}S{O}_4\\ \text{S. Dissolved oxygen}& \text{4.}N/50EDTA\end{array}$$Codes:

• A. $P-2,Q-1,R-4,S-3$
• B. $P-4,Q-3,R-2,S-1$
• C. $P-1,Q-2,R-3,S-4$
• D. $P-3,Q-4,R-1,S-2$

Answer 1

The correct option is D $P-3,Q-4,R-1,S-2$

$Alkalinity-H_{2}S{O}_4$
$Hardness-EDTA$
$Chloride-AgN{O}_3$
$DissolvedOxygen-N{a}_2{S}_2{O}_3$