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Three samples of water A,B and C have th...

Three samples of water A,B and C have the D.O. values 1mg/l , 3mg/l , and 5 mg/l respectively . The more polluted sample of water is

A

A

B

B

C

C

D

All are equal

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A
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AAKASH SERIES-ENVIRONMENTAL CHEMISTRY-LEVEL - I (EXERCISE-II) (Terms & segments , Air pollution , Water pollution , Soil Pollution Control of environmental pollution , Green Chemistry)
  1. Which of the following is not a non-viable particulates

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  2. A overset(O(3)NO(2))(rarr) PAN, then ratio of sigma and pi bonds in th...

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  3. Three samples of water A,B and C have the D.O. values 1mg/l , 3mg/l , ...

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  4. {:("List-I","List-2"),("Pollutant","Effect"),((A)SO(4)^(-2) gt 550 "pp...

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  5. Match List-I with List-II and select the correct answer using the code...

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  6. Chief source of soil and water pollution is

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  7. Fish die in water bodies polluted by sewage due to

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  8. Herbicides are

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  9. (A) : Instead of pesticides, herbicides like NaClO3, Na3AsO3 are used ...

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  10. Correct statement regarding industrial waste

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  11. Which one of the following can be recycled ?

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  12. Which pollutant can be used as fertiliser

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  13. Which of the following is environmental friendly reaction

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  14. CH2=CH2+O(2)overset(" onestepoxidation")underset("metal ions")rarrunde...

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  15. (A): Concentration of soluble F^(-) ions in drinking water about 1 ppm...

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  16. 100 ml of sample of water requires 3.92 mg of K2 Cr2O3 in presence of ...

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  17. A sample of pond water containing 20mg of organic matter requires 16 m...

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  18. Which of the following statements is false?

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  19. A,B,C and D are four 100-mlL samples of water. Fluoride ion concentrat...

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  20. Some statements regarding air pollution are given. Among them, the cor...

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