Question
Chemistry Question on Water pollution
The water quality of a pond was analysed and its BOD was found to be 4. The pond has
A
Water has high amount of fluoride compounds
B
Highly polluted water
C
Very clean water
D
Slightly polluted water
Answer
Very clean water
Explanation
Solution
The correct answer is (C) : Very clean water
Clean water as BOD value of <5 while polluted water has BOD of 15 or more.