Which pollutants are present in the troposphere?
- ASmog
- BOxides of sulfur
- C$A$ and $B$
- DOxides of metals
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Similar Questions
Which solvent from the following is used in order to avoid the creation of waste and the pollution of air?
Which of the following is not an air pollutant?
Match the following:
List-$I$ (Pollutant concentration limit in water)
List-$II$ (Effect)
$A. Pb > 50 \ ppb$
$I. \text{Liver damage}$
$B. SO_4^{2-} > 500 \ ppm$
$II. \text{Laxative effect}$
$C. NO_3^{-} > 50 \ ppm$
$III. \text{Blue baby syndrome}$
$D. F^{-} > 2 \ ppm$
$IV. \text{Brown mottling of teeth}$
The correct answer is
| List-$I$ (Pollutant concentration limit in water) | List-$II$ (Effect) |
|---|---|
| $A. Pb > 50 \ ppb$ | $I. \text{Liver damage}$ |
| $B. SO_4^{2-} > 500 \ ppm$ | $II. \text{Laxative effect}$ |
| $C. NO_3^{-} > 50 \ ppm$ | $III. \text{Blue baby syndrome}$ |
| $D. F^{-} > 2 \ ppm$ | $IV. \text{Brown mottling of teeth}$ |
What do you mean by Biochemical Oxygen Demand $(BOD)$?
Easy
View SolutionFormation of photochemical smog involves the following reactions in which $A$,$B$,and $C$ are respectively:
$(i)$ $NO_2 \stackrel{h\nu}{\longrightarrow} A + B$
$(ii)$ $B + O_2 \rightarrow C$
$(iii)$ $A + C \rightarrow NO_2 + O_2$
Choose the correct answer from the options given below:
$(i)$ $NO_2 \stackrel{h\nu}{\longrightarrow} A + B$
$(ii)$ $B + O_2 \rightarrow C$
$(iii)$ $A + C \rightarrow NO_2 + O_2$
Choose the correct answer from the options given below:
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