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 titrants. Group I Group II P. Alkalinity 1. N/35.5 AgNO 3 Q. Hardness 2. N/40 Na 2 S 2 O 3 R. Chloride 3. N/50 H 2 SO 4 S. Dissolved oxygen 4. N/50 EDTA The correct match of water quality parameters in Group-I with titrants in Group-II is:

Correct Answer is : P-3, Q-4, R-1, S-2

GATE Civil Engineering (CE) 2013 Solved Paper

Question : 30 of 65

Marks: +1, -0

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 titrants.

	Group I		Group II
P.	Alkalinity	1.	N/35.5 AgNO₃
Q.	Hardness	2.	N/40 Na₂S₂O₃
R.	Chloride	3.	N/50 H₂SO₄
S.	Dissolved oxygen	4.	N/50 EDTA

The correct match of water quality parameters in Group-I with titrants in Group-II is:

P-1, Q-2, R-3, S-4
P-3, Q-4, R-1, S-2
P-2, Q-1, R-4, S-3
P-4, Q-3, R-2, S-1

Validate

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