1
AP EAPCET 2024 - 21th May Morning Shift
MCQ (Single Correct Answer)
+1
-0
The BOD values for pure water and highly polluted water are respectively.
A
$>5 \mathrm{ppm}, \leq 17 \mathrm{ppm}$
B
$>5 \mathrm{ppm}, \geq 17 \mathrm{ppm}$
C
$<5 \mathrm{ppm}, \geq 17 \mathrm{ppm}$
D
$<5 \mathrm{ppm}, \leq 17 \mathrm{ppm}$
2
AP EAPCET 2024 - 20th May Evening Shift
MCQ (Single Correct Answer)
+1
-0
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?
A
$\mathrm{Pd}, \mathrm{NO}_2$
B
$\mathrm{Rh}, \mathrm{CO}_2$
C
$\mathrm{Pt}, \mathrm{N}_2$
D
$\mathrm{Ni}, \mathrm{CH}_4$
3
AP EAPCET 2024 - 20th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

$$ \text { Match the following. } $$

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 $$
\text { Brown mottling of teeth }
$$
$$ \text { Correct answer is } $$
A
A-III, B-II, C-I
B
A-III, B-I, C-II
C
A-II, B-I, C-III
D
A-II, B-III, C-I
4
AP EAPCET 2024 - 18th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Arrange the following pestidides in the chronological order of their release into the market.

Organophosphates Organochlorides Sodium chlorate

$\quad \text { (A) } \quad\quad\quad\quad\quad\quad\quad \text { (B) } \quad\quad\quad\quad \text { (C) }$

A
B, A, C
B
B, C, A
C
C, B, A
D
A, B, C
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