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NEET2011ChemistryEnvironmental ChemistryActual

Which one of the following statements is not true?

Options

  1. AConcentration of DO below 6 ppm is good for the growth of fish
  2. BClean water would have a BOD value of less than 5 ppm
  3. COxides of sulphur, nitrogen and carbon are the most widespread air pollutant
  4. DpH of drinking water should be between 5.5-9.5

Correct answer

A. Concentration of DO below 6 ppm is good for the growth of fish

Step-by-step solution

Growth of fish is inhibited if concentration of DO is below 6 ppm.

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