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NEET Environmental Chemistry PYQs with Solutions

349 previous year questions from Environmental Chemistry (NEET UG Chemistry) with answers and solutions. Numbered list, year tags, and one-tap solutions — built for serious JEE / NEET practice.

349 questionsChemistry2004–2026Answers + solutions

About Environmental Chemistry PYQs

Environmental Chemistry has 349 previous year questions in the Quantrex Academy NEET UG Chemistry bank. The 220 questions in this list come from NEET (203), JIPMER (11) and MHT CET Medical (6), spanning 2004 to 2026. Each question opens on its own page with the options, the correct answer and the worked solution where available.

Questions by year (this list)

2026: 6
2023: 2
2022: 2
2021: 1
2020: 2
2019: 2
2018: 1
2017: 2
2016: 1
2015: 3
2014: 3
2013: 2

Given below are two statements : Statement I : The nutrient deficient water bodies lead to eutrophication. Statement II : Eutrophication leads to decrease in the level of oxygen

NEET 2023 Solution View → 9

The pollution due to oxides of sulphur gets enhanced due to the presence of: (a) particulate matter (b) ozone (c) hydrocarbons (d) hydrogen peroxide Choose the most appropriate

NEET 2022 Solution View → 10

Match List-I with List-II: Choose the correct answer from the options given below:

NEET 2022 Solution View → 11

Match List - I with List - II. List-I List-II (a) 2 SO _ 2 (g) + O _ 2 (g) → 2 SO _ 3 (g) (i) Acid rain (b) HOCl(g) hv ⟶ ∙ OH + ∙ Cl (ii) Smog (c) CaCO _ 3 + H _ 2 SO _ 4 → CaSO _

NEET 2021 Solution View → 12

500 mL of a sample of water required 19.6 mg of K_2 Cr_2 O_7 for the oxidation of dissolved organic matter in it in the presence of H_2 SO_4 . The COD of water sample is

JIPMER 2015 Solution View → 21

On the basis of the following \(E^ ∘ \) values, the strongest oxidizing agent is :- aligned & [Fe(CN)_6]^ 4- arrow[Fe(CN)_6]^ 3- +e^ -1 , E^ ∘ =-0.35 ~V & Fe^ 2+ arrow Fe^ 3+ +e^

NEET 2008 Solution View → 34

In addition to using water filters, what is another preventive measure to reduce lead exposure in older homes with lead pipes?

NEET Solution View → 60

Which of the following is NOT an example of a particulate pollutant produced by condensation of vapors or spray liquids in the air?

NEET Solution View → 66

What is an example of a non-viable particulate pollutant that consists of solid or liquid particles formed during the combustion of organic matter?

NEET Solution View → 85

Which type of particulate pollutants is produced by the condensation of vapors during sublimation, distillation, boiling, and chemical reactions?

NEET Solution View → 101

Which organ may be affected by prolonged exposure to high levels of sulphate in drinking water?

NEET Solution View → 102

What is the primary goal of Swachh Bharat Mission–Urban (SBM–U)?

NEET Solution View → 103

What is the primary environmental concern associated with the improper disposal of non-degradable industrial solid wastes?

NEET Solution View → 104

Related NEET Chemistry chapters

Chemical Bonding and Molecular Structure (1,423)General Organic Chemistry (1,091)p Block Elements (Group 15, 16, 17 & 18) (1,072)Biomolecules (1,038)Coordination Compounds (891)d and f Block Elements (869)Electrochemistry (865)Chemical Kinetics (819)Structure of Atom (785)Ionic Equilibrium (764)Hydrocarbons (757)Thermodynamics (C) (730)

Environmental Chemistry in other exams

JEE Environmental Chemistry (133)BITSAT Environmental Chemistry (16)

NEET Environmental Chemistry PYQs with Solutions

About Environmental Chemistry PYQs

Questions by year (this list)

Environmental Chemistry questions with solutions

An organic halogen compound which is used as refrigerant in refrigerators and air conditioners is

According to green chemistry, which of the following features is NOT favored by the catalyst?

Which of the following is responsible for depletion of ozone layer in stratosphere?

Which of the following is NOT a principle of green chemistry?

Which of the following is one of the 12 principles of Green Chemistry?

What is use of Carbon tetrachloride?

Which statement is not true about photochemical smog?

Given below are two statements : Statement I : The nutrient deficient water bodies lead to eutrophication. Statement II : Eutrophication leads to decrease in the level of oxygen

The pollution due to oxides of sulphur gets enhanced due to the presence of: (a) particulate matter (b) ozone (c) hydrocarbons (d) hydrogen peroxide Choose the most appropriate

Match List-I with List-II: Choose the correct answer from the options given below:

Match List - I with List - II. List-I List-II (a) 2 SO _ 2 (g) + O _ 2 (g) → 2 SO _ 3 (g) (i) Acid rain (b) HOCl(g) hv ⟶ ∙ OH + ∙ Cl (ii) Smog (c) CaCO _ 3 + H _ 2 SO _ 4 → CaSO _

Which of the following is not correct about carbon monoxide?

Which of the following statement is NOT true about acid rain?

Among the following, the one that is not a greenhouse gas is:

The liquified gas that is used in dry cleaning along with a suitable detergent is

Which oxide of nitrogen is not a common pollutant introduced into the atmosphere both due to natural and human activity?

Which of the following region is coldest?

Which of the following is a sink for CO ?

Which of the following statement(s) is not correct?

500 mL of a sample of water required 19.6 mg of K_2 Cr_2 O_7 for the oxidation of dissolved organic matter in it in the presence of H_2 SO_4 . The COD of water sample is

Eutrophication of a lake means, it

Which of the following soap/detergent is least, reduce space biodegradable?

In Fischer-Ringe's method of separation of nobles gas mixture from air, is used

Green chemistry means such reactions which

Which one of the following is not a common component of Photochemical Smog?

Excess fluoride (over 10 ppm ) in drinking water can cause

Which one of following statements is not true?

Which one of the following is mainly responsible for depletion of ozone layer?

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

Which one of the following statements is not true?

Freon used as refrigerant is

Green chemistry means such reactions which

On the basis of the following \(E^ ∘ \) values, the strongest oxidizing agent is :- aligned & [Fe(CN)_6]^ 4- arrow[Fe(CN)_6]^ 3- +e^ -1 , E^ ∘ =-0.35 ~V & Fe^ 2+ arrow Fe^ 3+ +e^

Green chemistry means such reactions which

Which of the following is secondary pollutant?

Which one of the following is responsible for depletion of the ozone layer in the upper strata of the atmosphere?

What is the primary consequence of adding excessive organic matter to water?

What is the primary goal of Swachh Bharat Mission Gramin (SBM–G)?

What is the common method of disposing of small quantities of toxic waste?

What is the potential consequence of ineffective solid waste management on the environment?

Which of the following gases is not a significant contributor to the greenhouse effect and global warming?

How does nitrate contamination in drinking water primarily affect infants?

Which of the following is a symptom of excessive sulphate consumption through drinking water?

What is a significant concern related to food storage in India?

Which season in Antarctica experiences the formation of polar stratospheric clouds?

Which greenhouse gas is associated with damage to the ozone layer?

What is the consequence of high BOD in water?

What is the consequence of poor waste management?

What is a potential consequence of using herbicides in cornfields?

Which component of smog results from the action of sunlight on unsaturated hydrocarbons and nitrogen oxides?

What are the environmental benefits of using water as a medium for chemical reactions in green chemistry?

Which gas is responsible for the redness and irritation of eyes in the presence of air pollution?

What is the primary gas responsible for global warming?

What is the primary role of aerobic bacteria in water?

What is the term used to describe the natural process that keeps the Earth's temperature stable?

How are large quantities of toxic wastes typically disposed of?

What is the role of chlorine radicals in ozone depletion in the stratosphere?

In what industry are large quantities of toxic wastes commonly generated?

In addition to using water filters, what is another preventive measure to reduce lead exposure in older homes with lead pipes?

What is the approximate height of the troposphere from sea level?

What is the classification of alkali metals based on their density?

What is the threshold for sulphate levels in drinking water to cause a laxative effect?

What is the potential effect of excessive sulphate (>500 ppm) in drinking water?

Which group of people is most susceptible to the adverse effects of nitrate in drinking water?

Which of the following is NOT an example of a particulate pollutant produced by condensation of vapors or spray liquids in the air?

How does green chemistry aim to minimize chemical pollutants in the environment during a synthesis?

Which type of smog is characterized by a mixture of smoke, fog, and sulfur dioxide?

What is the term for the pollutants that can be traced back to specific, identifiable sources of contamination?

Which date marks the birth anniversary of Mahatma Gandhi?

What is the role of water vapor in the greenhouse effect?

Which two programmes fall under the Swachh Bharat Abhiyan?

What is the typical concentration of oxygen in the atmosphere?

What is the potential harm associated with the accumulation of phosphates in water?

What happens when the pH of rainwater drops below 5.6?

How does soluble fluoride affect drinking water?

What is the lowest region of the atmosphere where human beings and other organisms live called?