Question
Chemistry Question on Water pollution
The concentration of dissolved oxygen (DO) in cold water can go upto :
A
10 ppm
B
14 ppm
C
16 ppm
D
8 ppm
Answer
10 ppm
Explanation
Solution
The concentration of the dissolved oxygen in water depends on several factors like temperature, pressure, salinity and atmospheric condition. The capacity to hold the dissolved oxygen is higher in cold water, this is because of solubility of gases. The concentration of DO in the cold water reaches upto 10 ppm.
So, the correct answer is (A): 10 ppm