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Previous year question hub

Environmental Chemistry PYQs - AP EAPCET Inorganic

Practice 21 Environmental Chemistry PYQs (21 MCQs) from AP EAPCET past 3 years for inorganic chemistry exam prep and mock tests.

21Papers
3Years
21Questions
1Topics

Environmental Chemistry question pattern

Every graph below is calculated only from this selection.

Questions by year

Year-wise coverage for Environmental Chemistry. Each bar uses a separate theme-derived color.

Difficulty distribution

How the classified questions are distributed by difficulty.

Not classified 21 100%

Question type distribution

MCQ, numerical, multiple-select and other formats found in these papers.

Multiple Choices 21 100%

Subject weightage

Top subjects by unique question coverage.

Chemistry
21 Qs

Most asked topics

Top topics across the included previous year papers.

Inorganic Chemistry
21 Qs

Subtopic coverage

Top subtopics inside this exact selection.

Environmental Chemistry
21 Qs

Paper coverage

Question coverage for the most populated papers. Every active PYP paper remains listed below.

AP EAPCET 2025 21ST MAY EVENING SHIFT
1 Qs
AP EAPCET 2025 21ST MAY MORNING SHIFT
1 Qs
AP EAPCET 2025 22ND MAY EVENING SHIFT
1 Qs
AP EAPCET 2025 22ND MAY MORNING SHIFT
1 Qs
AP EAPCET 2025 23RD MAY EVENING SHIFT
1 Qs
AP EAPCET 2025 23RD MAY MORNING SHIFT
1 Qs
AP EAPCET 2025 24TH MAY MORNING SHIFT
1 Qs
AP EAPCET 2025 26TH MAY EVENING SHIFT
1 Qs
AP EAPCET 2025 26TH MAY MORNING SHIFT
1 Qs
AP EAPCET 2025 27TH MAY MORNING SHIFT
1 Qs
AP EAPCET 2024 18TH MAY MORNING SHIFT
1 Qs
AP EAPCET 2024 20TH MAY EVENING SHIFT
1 Qs
AP EAPCET 2024 20TH MAY MORNING SHIFT
1 Qs
AP EAPCET 2024 21TH MAY MORNING SHIFT
1 Qs
AP EAPCET 2024 22TH MAY EVENING SHIFT
1 Qs
AP EAPCET 2024 22TH MAY MORNING SHIFT
1 Qs
AP EAPCET 2024 23TH MAY MORNING SHIFT
1 Qs
AP EAPCET 2021 19TH AUGUST EVENING SHIFT
1 Qs
AP EAPCET 2021 19TH AUGUST MORNING SHIFT
1 Qs
AP EAPCET 2021 20TH AUGUST EVENING SHIFT
1 Qs
AP EAPCET 2021 20TH AUGUST MORNING SHIFT
1 Qs

Included previous year papers

Newest papers appear first. Sort by year, question coverage or name.

PaperYear / sessionQuestions in this viewOpen
AP EAPCET 2025 21ST MAY EVENING SHIFT20251View paper
AP EAPCET 2025 21ST MAY MORNING SHIFT20251View paper
AP EAPCET 2025 22ND MAY EVENING SHIFT20251View paper
AP EAPCET 2025 22ND MAY MORNING SHIFT20251View paper
AP EAPCET 2025 23RD MAY EVENING SHIFT20251View paper
AP EAPCET 2025 23RD MAY MORNING SHIFT20251View paper
AP EAPCET 2025 24TH MAY MORNING SHIFT20251View paper
AP EAPCET 2025 26TH MAY EVENING SHIFT20251View paper
AP EAPCET 2025 26TH MAY MORNING SHIFT20251View paper
AP EAPCET 2025 27TH MAY MORNING SHIFT20251View paper
AP EAPCET 2024 18TH MAY MORNING SHIFT20241View paper
AP EAPCET 2024 20TH MAY EVENING SHIFT20241View paper
AP EAPCET 2024 20TH MAY MORNING SHIFT20241View paper
AP EAPCET 2024 21TH MAY MORNING SHIFT20241View paper
AP EAPCET 2024 22TH MAY EVENING SHIFT20241View paper
AP EAPCET 2024 22TH MAY MORNING SHIFT20241View paper
AP EAPCET 2024 23TH MAY MORNING SHIFT20241View paper
AP EAPCET 2021 19TH AUGUST EVENING SHIFT20211View paper
AP EAPCET 2021 19TH AUGUST MORNING SHIFT20211View paper
AP EAPCET 2021 20TH AUGUST EVENING SHIFT20211View paper
AP EAPCET 2021 20TH AUGUST MORNING SHIFT20211View paper

All Environmental Chemistry previous year questions

Practice every matching question in batches of 20, with every available option.

1
2021 · Chemistry · Inorganic Chemistry · Environmental Chemistry
AP EAPCET 2021 19TH AUGUST EVENING SHIFT

Which among the following has the highest concentration of PAN?

A
Acid rain
B
Oxidising smog
C
Reducing smog
D
Ozone
Open complete paper
2
2021 · Chemistry · Inorganic Chemistry · Environmental Chemistry
AP EAPCET 2021 19TH AUGUST MORNING SHIFT

Green chemistry refers to reactions which

A
reduce the use and production of hazardous chemicals
B
study of the extremely slow reactions
C
are related to soil erosion
D
study of green leaves
Open complete paper
3
2021 · Chemistry · Inorganic Chemistry · Environmental Chemistry
AP EAPCET 2021 20TH AUGUST EVENING SHIFT

Identify the coldest region among the following layers of atmosphere.

A
Troposphere
B
Mesosphere
C
Stratosphere
D
Thermosphere
Open complete paper
4
2021 · Chemistry · Inorganic Chemistry · Environmental Chemistry
AP EAPCET 2021 20TH AUGUST MORNING SHIFT

Which among the following is not a greenhouse gas?

A
Nitrous oxide
B
Water vapour
C
Sulphur dioxide
D
Methane
Open complete paper
5
2024 · Chemistry · Inorganic Chemistry · Environmental Chemistry
AP EAPCET 2024 18TH MAY MORNING SHIFT

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
Open complete paper
6
2024 · Chemistry · Inorganic Chemistry · Environmental Chemistry
AP EAPCET 2024 20TH MAY EVENING SHIFT
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
$\mathrm{Ni}, \mathrm{CH}_4$
Open complete paper
7
2024 · Chemistry · Inorganic Chemistry · Environmental Chemistry
AP EAPCET 2024 20TH MAY MORNING SHIFT

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

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
Open complete paper
8
2024 · Chemistry · Inorganic Chemistry · Environmental Chemistry
AP EAPCET 2024 21TH MAY MORNING SHIFT
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
$<5 \mathrm{ppm}, \leq 17 \mathrm{ppm}$
Open complete paper
9
2024 · Chemistry · Inorganic Chemistry · Environmental Chemistry
AP EAPCET 2024 22TH MAY EVENING SHIFT

Match the pollutant is List I with its maximum permissible limit in drinking water given in List II

List I List II
A Lead I 500 ppm
B Sulphate II 50 ppm
C Nitrate III 50 ppb
A
$\mathrm{A}-\mathrm{II}, \mathrm{B}-\mathrm{III}, \mathrm{C}-\mathrm{I}$
B
A-II, B-I, C-III
C
A-III, B-I, C-II
D
A-III, B-II, C-I
Open complete paper
10
2024 · Chemistry · Inorganic Chemistry · Environmental Chemistry
AP EAPCET 2024 22TH MAY MORNING SHIFT

Which of the following is/are estimated by tura polluted water with potassium dichromate solution in acidic medium?

$$\begin{array}{c|c|c} \hline \text { COD } & \text { BOD } & \text { DO } \\ \hline \text { I } & \text { II } & \text { III } \\ \hline \end{array}$$

A
I only
B
II only
C
II and III only
D
I, II and III
Open complete paper
11
2024 · Chemistry · Inorganic Chemistry · Environmental Chemistry
AP EAPCET 2024 23TH MAY MORNING SHIFT
Which of the following is lung irritant?
A
CO
B
$\mathrm{NO}_2$
C
$\mathrm{CO}_2$
D
$\mathrm{CH}_4$
Open complete paper
12
2025 · Chemistry · Inorganic Chemistry · Environmental Chemistry
AP EAPCET 2025 21ST MAY MORNING SHIFT

Consider the following.

Assertion (A) : CO is poisonous to living beings.

Reason (R) : CO binds to haemoglobin forming carboxyhaemoglobin, which is less stable than oxygen-haemoglobin complex.

Correct answer is

A

A and R both are correct and R is the correct explanation for A .

B

A and R both are correct and R is not the correct explanation for A .

C

A is correct, but R is not correct.

D

A is not correct, but R is correct.

Open complete paper
13
2025 · Chemistry · Inorganic Chemistry · Environmental Chemistry
AP EAPCET 2025 21ST MAY EVENING SHIFT

Identify the air pollutant which in high concentration leads to stiffness of flower buds?

A

$\mathrm{CO}_2$

B

$\mathrm{SO}_2$

C

CO

D

$\mathrm{CH}_4$

Open complete paper
14
2025 · Chemistry · Inorganic Chemistry · Environmental Chemistry
AP EAPCET 2025 22ND MAY EVENING SHIFT

Among the following compounds, which one is not responsible for the depletion of ozone layer?

A

$\mathrm{CH}_4$

B

$\mathrm{CFCl}_3$

C

NO

D

$\mathrm{Cl}_2$

Open complete paper
15
2025 · Chemistry · Inorganic Chemistry · Environmental Chemistry
AP EAPCET 2025 22ND MAY MORNING SHIFT

$$\text { Match the following }$$

List-I
(Metal in drinking water)		 List-II
(Maximum prescribed concentration in ppm)
(A) Mn (I) 0.05
(B) Zn (II) 3.0
(C) Cd (III) 0.005
(D) Cu (IV) 5.0

The correct answer is

A

A-IV, B-II, C-I, D-III

B

A-I, B-III, C-IV, D-II

C

A-III, B-II, C-IV, D-I

D

A-I, B-IV, C-III, D-II

Open complete paper
16
2025 · Chemistry · Inorganic Chemistry · Environmental Chemistry
AP EAPCET 2025 23RD MAY EVENING SHIFT

Which of the following when present in excess in drinking water causes the disease methemoglobinemia?

A

$\mathrm{SO}_4^{2-}$

B

$\mathrm{NO}_3^{-}$

C

$\mathrm{F}^{-}$

D

Pb

Open complete paper
17
2025 · Chemistry · Inorganic Chemistry · Environmental Chemistry
AP EAPCET 2025 23RD MAY MORNING SHIFT

$$\text { Match the following }$$

List-I
(Pollutant concentration limit in water)		 List-II
(Effect)
(A) $$
\[\mathrm{Pb}>50 \mathrm{ppm}\]
$$		 (I) Brown mottling of teeth
(B) $$
\[\mathrm{SO}_4^{2-}>500 \mathrm{ppm}\]
$$		 (II) 'Blue baby' syndrome
(C) $$
\[\mathrm{NO}_3^{-}>50 \mathrm{ppm}\]
$$		 (III) Laxative effect
(D) $$
\[\mathrm{F}^{-}>2 \mathrm{ppm}\]
$$		 (IV) Liver damage
The correct answer is
A

A-IV, B-III, C-II, D-I

B

A-IV, B-III, C-I, D-II

C

A-III, B-IV, C-I, D-II

D

A-II, B-III, C-IV, D-I

Open complete paper
18
2025 · Chemistry · Inorganic Chemistry · Environmental Chemistry
AP EAPCET 2025 24TH MAY MORNING SHIFT

Which one of the following statements related to photochemical smog is not correct?

A

It is controlled by the use of catalytic converters in automobiles.

B

It causes corrosion of metals.

C

It is a mixture of $\mathrm{SO}_2$, smoke and fog.

D

It causes extensive damage to plant life.

Open complete paper
19
2025 · Chemistry · Inorganic Chemistry · Environmental Chemistry
AP EAPCET 2025 26TH MAY EVENING SHIFT

The incorrect statement from the following is

A

classical smog is also called reducing smog.

B

common components of classical smog are $\mathrm{O}_3, \mathrm{NO}, \mathrm{HCHO}$.

C

photochemical smog leads to cracking of rubber and corrosion of metals.

D

photochemical smog occurs in warm, dry and sunny climate.

Open complete paper
20
2025 · Chemistry · Inorganic Chemistry · Environmental Chemistry
AP EAPCET 2025 27TH MAY MORNING SHIFT

Which of the following statements is not correct?

A

Catalytic converters present in automobiles prevent the release of nitrogen oxide to the atmosphere.

B

Photochemical smog is a mixture of smoke, fog and $\mathrm{SO}_2$.

C

Chlorofluorocarbons damage ozone layer.

D

Acid rain corrodes water pipes resulting in the leaching of heavy metals into the drinking water.

Open complete paper

Showing 20 of 21 questions