UPSC Civil Services 2013 Prelims General Studies Paper I

Question : 33 of 100

Marks: +1, -0

Which of the following can be found as pollutants in the drinking water in some parts of India?
1. Arsenic
2. Sorbitol
3. Fluoride
4. Formaldehyde
5. Uranium
Select the correct answer using the codes given below.