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Previous year question hub

Environmental Chemistry - Inorganic Chemistry - Chemistry Previous Year Questions

Practice Environmental Chemistry - Inorganic Chemistry - Chemistry previous year questions organised from real papers, with year-wise coverage and clear topic navigation.

14Papers
5Years
16Questions
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 16 100%

Question type distribution

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

Multiple Choices 16 100%

Subject weightage

Top subjects by unique question coverage.

Chemistry
16 Qs

Most asked topics

Top topics across the included previous year papers.

Inorganic Chemistry
16 Qs

Subtopic coverage

Top subtopics inside this exact selection.

Environmental Chemistry
16 Qs

Paper coverage

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

MHT CET 2025 21ST APRIL MORNING SHIFT
2 Qs
MHT CET 2025 5TH MAY EVENING SHIFT
2 Qs
MHT CET 2025 19TH APRIL EVENING SHIFT
1 Qs
MHT CET 2025 20TH APRIL EVENING SHIFT
1 Qs
MHT CET 2025 22ND APRIL EVENING SHIFT
1 Qs
MHT CET 2025 22ND APRIL MORNING SHIFT
1 Qs
MHT CET 2025 23RD APRIL MORNING SHIFT
1 Qs
MHT CET 2024 10TH MAY EVENING SHIFT
1 Qs
MHT CET 2024 3RD MAY MORNING SHIFT
1 Qs
MHT CET 2024 9TH MAY MORNING SHIFT
1 Qs
MHT CET 2023 10TH MAY MORNING SHIFT
1 Qs
MHT CET 2023 14TH MAY EVENING SHIFT
1 Qs
MHT CET 2021 21TH SEPTEMBER EVENING SHIFT
1 Qs
MHT CET 2019 2ND MAY MORNING SHIFT
1 Qs

Included previous year papers

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

PaperYear / sessionQuestions in this viewOpen
MHT CET 2025 19TH APRIL EVENING SHIFT20251View paper
MHT CET 2025 20TH APRIL EVENING SHIFT20251View paper
MHT CET 2025 21ST APRIL MORNING SHIFT20252View paper
MHT CET 2025 22ND APRIL EVENING SHIFT20251View paper
MHT CET 2025 22ND APRIL MORNING SHIFT20251View paper
MHT CET 2025 23RD APRIL MORNING SHIFT20251View paper
MHT CET 2025 5TH MAY EVENING SHIFT20252View paper
MHT CET 2024 10TH MAY EVENING SHIFT20241View paper
MHT CET 2024 3RD MAY MORNING SHIFT20241View paper
MHT CET 2024 9TH MAY MORNING SHIFT20241View paper
MHT CET 2023 10TH MAY MORNING SHIFT20231View paper
MHT CET 2023 14TH MAY EVENING SHIFT20231View paper
MHT CET 2021 21TH SEPTEMBER EVENING SHIFT20211View paper
MHT CET 2019 2ND MAY MORNING SHIFT20191View paper

All Environmental Chemistry previous year questions

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

1
2019 · Chemistry · Inorganic Chemistry · Environmental Chemistry
MHT CET 2019 2ND MAY MORNING SHIFT

For the conversion of oxygen to ozone in the atmosphere, nitric oxide in gaseous phase acts as

A
enzyme catalyst
B
inhibitor
C
homogeneous catalyst
D
heterogeneous catalyst
Open complete paper
2
2021 · Chemistry · Inorganic Chemistry · Environmental Chemistry
MHT CET 2021 21TH SEPTEMBER EVENING SHIFT

Which among the following statements about ozone depletion is NOT true?

A
Depletion of ozone is most pronounced over Antarctica.
B
Freons used in aerosol that enters into atmosphere causes depletion of ozone layer.
C
Nitrogen oxide released from cars causes ozone depletion.
D
Due to ozone depletion less amount of UV radiations reaches to earth surface.
Open complete paper
3
2023 · Chemistry · Inorganic Chemistry · Environmental Chemistry
MHT CET 2023 10TH MAY MORNING SHIFT

Which among following statements is NOT true according to principles of green chemistry?

A
In a chemical synthesis the waste product should be zero or minimum.
B
Good atom economy means very few atoms of reactants are incorporated in the product.
C
Only small amounts of unwanted by products are formed.
D
Use of lindane is better than DDT.
Open complete paper
4
2023 · Chemistry · Inorganic Chemistry · Environmental Chemistry
MHT CET 2023 14TH MAY EVENING SHIFT

Which from following is an example of two dimensional nanostructures?

A
Nanoparticles
B
Thin films
C
Quantum dots
D
Nanowires
Open complete paper
5
2024 · Chemistry · Inorganic Chemistry · Environmental Chemistry
MHT CET 2024 10TH MAY EVENING SHIFT

Which from following reactions exhibits good atom economy according to the principles of green chemistry?

A
$\mathrm{C}_4 \mathrm{H}_9 \mathrm{OH}+\mathrm{NaBr}+\mathrm{H}_2 \mathrm{SO}_4 \longrightarrow \mathrm{C}_4 \mathrm{H}_9 \mathrm{Br}+\mathrm{NaHSO}_4+\mathrm{H}_2 \mathrm{O}$
B
$\mathrm{C}_2 \mathrm{H}_4+\mathrm{H}_2 \xrightarrow{\mathrm{Ni}} \mathrm{C}_2 \mathrm{H}_6$
C
$\mathrm{C}_2 \mathrm{H}_5 \mathrm{OH}+\mathrm{C}_2 \mathrm{H}_5 \mathrm{COOH} \longrightarrow \mathrm{C}_2 \mathrm{H}_5 \mathrm{COOC}_2 \mathrm{H}_5+\mathrm{H}_2 \mathrm{O}$
D
$\mathrm{C}_4 \mathrm{H}_9 \mathrm{OH}+\mathrm{SOCl}_2 \xrightarrow{\Delta} \mathrm{C}_4 \mathrm{H}_9 \mathrm{Cl}+\mathrm{HCl}+ \mathrm{SO_2}$
Open complete paper
6
2024 · Chemistry · Inorganic Chemistry · Environmental Chemistry
MHT CET 2024 3RD MAY MORNING SHIFT

Which from following statements is NOT true according to principles of green chemistry?

A
It is good to use the technique of protection and deprotection of functional group in organic synthesis.
B
Use of chemicals derived from plant resource is better than crude oil.
C
Use of biodegradable pesticides is advantageous.
D
Use of critical $\mathrm{CO}_2$ as solvent is better than organic solvents.
Open complete paper
7
2024 · Chemistry · Inorganic Chemistry · Environmental Chemistry
MHT CET 2024 9TH MAY MORNING SHIFT

Which of the following solvents reduces the environmental pollution?

A
Water
B
Dichloromethane
C
Trichloromethane
D
Tetrachloromethane
Open complete paper
8
2025 · Chemistry · Inorganic Chemistry · Environmental Chemistry
MHT CET 2025 19TH APRIL EVENING SHIFT

Which solvent from following is used in order to avoid creation of waste and pollution of air?

A
$\mathrm{CH}_2 \mathrm{Cl}_3$
B
$\mathrm{CHCl}_3$
C
$\mathrm{CCl}_4$
D
$\mathrm{H}_2 \mathrm{O}$
Open complete paper
9
2025 · Chemistry · Inorganic Chemistry · Environmental Chemistry
MHT CET 2025 20TH APRIL EVENING SHIFT

Which of the following is effectively used to remove E. coli bacteria from water?

A
Silver nanoparticles
B
Carbon black nanoparticles
C
$\mathrm{TiO}_2$ nanoparticles
D
Silicon nanoparticles
Open complete paper
10
2025 · Chemistry · Inorganic Chemistry · Environmental Chemistry
MHT CET 2025 21ST APRIL MORNING SHIFT

Which of the following gases causes depletion in ozone layer?

A
He
B
NO
C
$\mathrm{CO}_2$
D
$\mathrm{H}_2$
Open complete paper
11
2025 · Chemistry · Inorganic Chemistry · Environmental Chemistry
MHT CET 2025 21ST APRIL MORNING SHIFT

Which of the following principal of green chemistry suggest use of chemicals made from plant based sources?

A
Minimisation of steps in process
B
Design for degradation
C
Use of renewable feed stocks
D
Reduce number of derivatives
Open complete paper
12
2025 · Chemistry · Inorganic Chemistry · Environmental Chemistry
MHT CET 2025 22ND APRIL EVENING SHIFT

Which of the following is effectively used instead of DDT?

A
BHC
B
$\mathrm{CHCl}_3$
C
$\mathrm{CH}_2 \mathrm{Cl}_2$
D
Picric acid
Open complete paper
13
2025 · Chemistry · Inorganic Chemistry · Environmental Chemistry
MHT CET 2025 22ND APRIL MORNING SHIFT

Which of the following is used as Green solvent?

A
Supercritical $\mathrm{CO}_2$
B
$\mathrm{CHCl}_3$
C
$\mathrm{CH}_2 \mathrm{Cl}_2$
D
$\mathrm{CCl}_4$
Open complete paper
14
2025 · Chemistry · Inorganic Chemistry · Environmental Chemistry
MHT CET 2025 23RD APRIL MORNING SHIFT

Identify the principle suggesting to avoid protection and deprotection of selective group for organic reactions in green chemistry.

A
Reduce derivatives
B
Use of renewable feedstock
C
Design for energy efficiency
D
Designing safer chemicals
Open complete paper
15
2025 · Chemistry · Inorganic Chemistry · Environmental Chemistry
MHT CET 2025 5TH MAY EVENING SHIFT

Find principle of green chemistry to show protection of selective group is not advantageous.

A

Use of renewable feed stock

B

Reduce number of derivatives

C

Use of catalysis

D

Design for degradation

Open complete paper
16
2025 · Chemistry · Inorganic Chemistry · Environmental Chemistry
MHT CET 2025 5TH MAY EVENING SHIFT

Which from following gases causes the depletion of ozone layer in upper atmosphere?

A

NO

B

$\mathrm{NO}_2$

C

$\mathrm{N}_2 \mathrm{O}$

D

$\mathrm{N}_2 \mathrm{O}_5$

Open complete paper