Question
Chemistry Question on Environmental Chemistry
The concentration of dissolved Oxygen in water for growth of fish should be more than š ppm and Biochemical Oxygen Demand in clean water should be less than š ppm. X and Y in ppm are, respectively.
A
X Y
4 8
B
X Y
6 5
C
X Y
4 15
D
X Y
6 12
Answer
X Y
6 5
Explanation
Solution
The correct option is (B).