Which of the following can be found as pollutants in the drinking water in some parts of India? Select the correct answer using the code given below.(A) Arsenic(B) Sorbitol(C) Fluoride(D) Formaldehyde(E) Uranium
A). B, D and E
B). A, B, C, D and E
C). A, C and E
D). A and C
A, C and E
Recent research has shown that India’s groundwater faces the problem of presence of uranium, arsenic, and heavy metals in ground water used for drinking. Sorbitol (used as artificial sweetener) and Formaldehyde (used in coating, etc) are not famous as water pollutants.
2. Electric bulbs are filled with :
3. Stainless steel is usually made by alloying the steel with
5. In ice, the number of hydrogen bonds per water molecule is
6. Aluminum can be purified by
7. Name the acid present in lemon.
8. The total energy of revolving electron in an atom