Environmental Chemistry Question 31
Question: What is the concentration of dissolved oxygen in cold water-
Options:
A) 5 ppm
B) 10 ppm
C) 200,000 ppm
D) 100 ppm
Show Answer
Answer:
Correct Answer: B
Solution:
[b] In cold water, dissolved oxygen can reach a concentration upto 10 ppm, whereas oxygen in air is about 200, 000 ppm.