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Question: Answered & Verified by Expert
Which one of the following statement is not true?
ChemistryEnvironmental ChemistryNEET
Options:
  • A Oxides of sulphur, nitrogen and carbon are the most widespread air pollutants
  • B pH of drinking water should be between 5.5 – 9.5
  • C Concentration of DO below 6 ppm is good for the growth of fish
  • D Clean water would have a BOD value of less than 5 ppm
Solution:
1010 Upvotes Verified Answer
The correct answer is: Concentration of DO below 6 ppm is good for the growth of fish
Fish dies in water bodies polluted by sewage or other pollutants due to decrease in dissolved oxygen (D.O.) value below 6 ppm. Rest of the other statements are correct.

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