Environmental Chemistry · Chemistry · AP EAPCET
MCQ (Single Correct Answer)
1
The BOD values for pure water and highly polluted water are respectively.
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2
An metal catalyst $(X)$ is used in the catalytic converter of automobiles. This prevents the release of gas $Y$ into the atmosphere. What are $X$ and $Y$ respectively?
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3
$$ \text { Match the following. } $$
| List-I F-ion concentration in drinking water) |
List-II (Effects on humans) |
||
|---|---|---|---|
| A | $$ \text { <1 ppm } $$ |
I | $$ \text { Harmful to bones } $$ |
| B | $$ >2 \mathrm{ppm} $$ |
II | $$ \text { Tooth decay } $$ |
| C | $$ >10 \mathrm{ppm} $$ |
III | $$ \text { Brown mottling of teeth } $$ |
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4
Arrange the following pestidides in the chronological order of their release into the market.
Organophosphates Organochlorides Sodium chlorate
$\quad \text { (A) } \quad\quad\quad\quad\quad\quad\quad \text { (B) } \quad\quad\quad\quad \text { (C) }$
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5
Which among the following is not a greenhouse gas?
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6
Which among the following has the highest concentration of PAN?
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7
Green chemistry refers to reactions which
AP EAPCET 2021 - 19th August Morning Shift