Question

The value of BOD in pure water is:
(i) 5 ppm
(ii) 10 ppm
(iii) 15 ppm
(iv) None of these​

Answer 1

Answer:

1.5ppm

Explanation:

A water supply of a BOD level of 3-5ppm

is considered moderatly clean.

Answer 2

Answer:

The BOD level 5 ppm suggest that the water is moderately clean. But 1-2 ppm suggest the water is actually pure