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Which of the following is/are polluted? ...

Which of the following is/are polluted?
(a) Rain water, with pH 5.6
(b) The atmosphere contains `0.03 % CO_(2)`
(c) River water with a `COD` value 10 ppm
(d) Pond water with phenomenon of eutrophication. The correct answer is

A

a, b

B

a, c, d

C

a, d

D

a, b, c, d

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NARAYNA-ENVIRONMENTAL CHEMISTRY-LEVEL-II (H.W)
  1. Identify the wrong statement in the following :

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  2. Important sinks for CO(2) are (A) Oceans (B) Plants (C) Microorgan...

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  3. Which of the following statements are correct (A) Carbamates are ner...

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  4. The acceptable level of carbon monoxide gas (CO) in the atmosphere in ...

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  5. The consequences of global warming may be a)increase in average tempe...

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  6. Green house effect is caused by (i) Acculation of O(2) in the atmosp...

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  7. Which of the following is/are polluted? (a) Rain water, with pH 5.6 ...

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  8. The acid responsible to make rain water acidic is (a) H(3)PO(4) (b) ...

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  9. Air pollutant gases causing acid rain are :

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  10. The smog is essentially caused by the presence of :

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  11. Which of the following is/are responsible for photochemical smog forma...

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  12. Formaton of London smog takes place in

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  13. Identify the incorrect statement from the following:

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  14. Cataract and skin cancer are caused by

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  15. What are X and Y in the following reaction? CF(2)Cl(2) overset(UV)(r...

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  16. How many of the following in dinking water below 30 ppm do not cause a...

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  17. Agricultural outflows contains phosphate fertilizers leads to (A) En...

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  18. It is preferred to bleach paper using

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  19. Better medium of chemical reaction according to green chemistry is

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  20. Which of the following statement are correct? (A) Ocean is sink for ...

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