UPSC NDA 2 2017 General Ability Solved Paper

© examsiri.com

Question : 139 of 150

Marks: +1, -0

The desirable pH for drinking water is

[NDA II 2017]

6.5 to 8.5
5.0 to 6.5
6.5 to 7.0
7.0 to 8.5

Go to Question:

Prev Question

Next Question