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Which of the following is most toxic ?...

Which of the following is most toxic ?

A

`Hg_2^(2+)`

B

`CH_4`

C

`Hg^(2+)`

D

Methyl mercury

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The correct Answer is:
D
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AAKASH SERIES-ENVIRONMENTAL CHEMISTRY-OBJECTIVE EXERCISE - 1 (Definition of terms- Introduction)
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  2. Which of the following is a primary pollutant?

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  3. Which of the following is most toxic ?

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  4. In which region of atmosphere, lowest temperatures are observed?

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  5. Three samples of water A, Band C have the D.O levels of 4 ppm, and 3.8...

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  6. Identify the incorect statement

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  7. Gradual warming of the almospbere due to trapping of radia1ion of long...

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  8. Composition of PAN is

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  9. Match the following

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  10. Assertion (A) : The temperature in the thermosphere increases with alt...

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  11. (A): Ionosphere contains gases in the ionised form which form the base...

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  12. Assertion (A) : Rain water normally has a pH of 5.6. Reason (R) : Th...

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  13. (A): Smaller particles (Size < 5 microns) cause fibrosis of the lung l...

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  14. Among the following which is a contaminent

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  15. Which of the following is contaminant responsible for Bhopal gas trage...

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  16. A substance which is not present in nature but added to atmoshphere du...

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  17. Identification of a pollutant as organic, inorgamic (or) organometalli...

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  18. The medium which reacts wi lh pollutant is called

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  19. The sink for dead plants and animals is

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  20. Which of the following can act as sink for CO2 and SO2

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