Select Goal &
City
Select Goal
Write a ReviewGet Upto ₹300*
Explore
Explore More
review_banner
Study AbroadCourse Finder
    No Data Found

Nuclear Chemistry and Environment JEE Mains Previous Year Questions with Solutions and weightage

Sahaj Anand's profile photo

Sahaj Anand

Content Writer | Journalism Graduate | Updated 3+ months ago

Nuclear Chemistry and Environment together carry a weightage of 2-3% in the Chemistry Section of JEE Main.

As per the last 5 year trends, 1-2 questions were consistently asked from these topics, which includes radioactivity, nuclear reactions, contaminants, and green chemistry.

Most of the questions are conceptual which requires proper knowledge of the laws included and the problems of the environment.

Must Read Articles

Below are previous year questions with solutions of Nuclear Chemistry and Environment

JEE Main Nuclear Chemistry & Enviornment

Question.1

View Solution

Question.2

View Solution

Question.3

  1. Industrial area
  2. Marshy place
  3. Hilly area of Himachal
  4. Cold humid climate

View Solution

Question.4

  1. New Delhi
  2. Mumbai
  3. J & K
  4. Kolkata

View Solution

Question.5

  1. (A)-(III), (B)-(II), (C)-(I), (D)-(IV)
  2. (A)-(III), (B)-(IV), (C)-(I), (D)-(II)
  3. (A)-(II), (B)-(III), (C)-(IV), (D)-(I)
  4. (A)-(IV), (B)-(I), (C)-(II), (D)-(III)

View Solution

Question.6

  1. NO
  2. Cl
  3. OH
  4. CH3

View Solution

Question.7

  1. 1
  2. 2
  3. 3
  4. 4

View Solution

Question.8

  1. A-II, B-III, C-IV, D-I
  2. A-II, B-I, C-IV, D-III
  3. A-I, B-IV, C-II, D-III
  4. A-I, B-IV, C-III, D-II

View Solution

Question.9

  1. It occurs in humid climates.
  2. It is a mixture of smoke, fog and SO2.
  3. It is reducing smog.
  4. It results from reaction of unsaturated hydrocarbons

View Solution

Question. 10

  1. N2 is unreactive in the condition of atmosphere
  2. Oxides of nitrogen are unstable
  3. Reaction between them can occur in the presence of a catalyst
  4. The reaction is endothermic and requires very high temperature

View Solution

JEE Main Chemistry Paper Pattern

The JEE Main Chemistry section consists of 25 Questions, which is divided into two sections:

  • Section A (MCQs)
  • Section B (Numerical Value Questions)

The total marks allocated for Chemistry is 100.

Section Question Type No. of Questions Attempt Required Marking Scheme Maximum Marks
A Multiple Choice (MCQs) 20 All Compulsory (+4) for Correct, -1 for Incorrect 80
B Numerical Value Questions 5 5 (+4) for Correct, No Negative Marking 20
Total 25 25 100

JEE Main Chemistry Chapter - Wise Weightage

JEE Main Chemistry is divided into Physical, Organic, and Inorganic Chemistry, and each accounts for around 33% of the paper.

The following is a chapter-wise weightage according to the previous year trends:

Unit Chapter Weightage (% Approx.) Average No. of Questions
Physical Chemistry Some Basic Concepts of Chemistry 2-3% 1
Atomic Structure 2-3% 1
Chemical & Ionic Equilibrium 6-8% 2-3
Thermodynamics 6-7% 2
Electrochemistry 4-6% 1-2
Chemical Kinetics 3-4% 1
Organic Chemistry General Organic Chemistry (GOC) 6-7% 2
Hydrocarbons 4-5% 1-2
Alcohols, Phenols & Ethers 4-5% 1-2
Carbonyl Compounds 6-7% 2
Biomolecules & Polymers 3-4% 1
Inorganic Chemistry Periodic Table & Periodicity 3-4% 1
Chemical Bonding 6-7% 2
Coordination Compounds 4-5% 1-2
p-Block Elements 6-7% 2
d- and f-Block Elements 4-5% 1-2

JEE Main Last 5 Year Chemistry Papers Pdf

Below are the last 5 year Question Paper along with their solutions candidates can check the same for their reference.

JEE Main 2024 Chemistry Question Paper

JEE Main 2024 Chemistry Question Paper Session 1

Exam Date Question Paper Solution PDF
JEE Main 2024 Feb 1 Shift 2 Chemistry Question Paper Download Check Solution
JEE Main 2024 Feb 1 Shift 1 Chemistry Question Paper Download Check Solution
JEE Main 2024 Jan 31 Shift 2 Chemistry Question Paper Download Check Solution
JEE Main 2024 Jan 31 Shift 1 Chemistry Question Paper Download Check Solution
JEE Main 2024 Jan 30 Shift 2 Chemistry Question Paper Download Check Solution
JEE Main 2024 Jan 30 Shift 1 Chemistry Question Paper Download Check Solution
JEE Main 2024 Jan 29 Shift 2 Chemistry Question Paper Download Check Solution
JEE Main 2024 Jan 29 Shift 1 Chemistry Question Paper Download Check Solution
JEE Main 2024 Jan 27 Shift 2 Chemistry Question Paper Download Check Solution
JEE Main 2024 Jan 27 Shift 1 Chemistry Question Paper Download Check Solution

JEE Main 2024 Chemistry Question Paper Session 2

Exam Date and Shift Question Paper Solution PDF
JEE Main 2024 April 4 Shift 1 Chemistry Question Paper Download Check Solution
JEE Main 2024 April 4 Shift 2 Chemistry Question Paper Download Check Solution
JEE Main 2024 April 5 Shift 1 Chemistry Question Paper Download Check Solution
JEE Main 2024 April 5 Shift 2 Chemistry Question Paper Download Check Solution
JEE Main 2024 April 6 Shift 1 Chemistry Question Paper Download Check Solution
JEE Main 2024 April 6 Shift 2 Chemistry Question Paper Download Check Solution
JEE Main 2024 April 8 Shift 1 Chemistry Question Paper Download Check Solution
JEE Main 2024 April 8 Shift 2 Chemistry Question Paper Download Check Solution
JEE Main 2024 April 9 Shift 1 Chemistry Question Paper Download Check Solution
JEE Main 2024 April 9 Shift 2 Chemistry Question Paper Download Check Solution

JEE Main 2023 Chemistry Question Paper

JEE Main 2023 Chemistry Question Paper Session 2

Exam Date Chemistry Question Paper 2023
Chemistry 6 April Shift 1 Question Paper Check Here
Chemistry 6 April Shift 2 Question Paper Check Here
Chemistry 8 April Shift 1 Question Paper Check Here
Chemistry 8 April Shift 2 Question Paper Check Here
Chemistry 10 April Shift 1 Question Paper Check Here
Chemistry 10 April Shift 2 Question Paper Check Here
Chemistry 11 April Shift 1 Question Paper Check Here
Chemistry 11 April Shift 2 Question Paper Check Here
Chemistry 12 April Shift 1 Question Paper Check Here
Chemistry 13 April Shift 1 Question Paper Check Here
Chemistry 13 April Shift 2 Question Paper Check Here
Chemistry 15 April Shift 1 Question Paper Check Here

JEE Main 2023 Chemistry Question Paper Session 1

Exam Date and Shift Chemistry Question Paper 2023
Chemistry 24 January Shift 1 Question Paper Check Here
2023 Chemistry 24 January Shift 2 Question Paper Check Here
Chemistry 25 January Shift 1 Question Paper Check Here
Chemistry 25 January Shift 2 Question Paper Check Here
Chemistry 29 January Shift 1 Question Paper Check Here
Chemistry 29 January Shift 2 Question Paper Check Here
Chemistry 30 January Shift 1 Question Paper Check Here
Chemistry 30 January Shift 2 Question Paper Check Here
Chemistry 31 January Shift 1 Question Paper Check Here
Chemistry 31 January Shift 2 Question Paper Check Here
Chemistry 1 February Shift 1 Question Paper Check Here
Chemistry 1 February Shift 2 Question Paper Check Here

JEE Main 2022 Chemistry Question Paper

JEE Main 2022 Chemistry Question Paper with Solution Phase 2

Exam Date Shift/ Slot Question Paper PDF
July 25 Shift 1 Check Here
July 25 Shift 2 Check Here
July 26 Shift 1 Check Here
July 26 Shift 2 Check Here
July 27 Shift 1 Check Here
July 27 Shift 2 Check Here
July 28 Shift 1 Check Here
July 28 Shift 2 Check Here
July 29 Shift 1 Check Here
July 29 Shift 2 Check Here

JEE Main 2022 Chemistry Question Paper with Solution PDF- Phase 1

Exam Date Shift/ Slot Question Paper PDF
June 29 Shift 1 Check Here
June 29 Shift 2 Check Here
June 28 Shift 1 Check Here
June 28 Shift 2 Check Here
June 27 Shift 1 Check Here
June 27 Shift 2 Check Here
June 26 Shift 1 Check Here
June 26 Shift 2 Check Here
June 25 Shift 1 Check Here
June 25 Shift 2 Check Here
June 24 Shift 1 Check Here
June 24 Shift 2 Check Here

JEE Main 2021 Chemistry Question Paper

JEE Main 2021 Chemistry Question Paper with Solution (Session 4- August)- Download PDF

Exam Date Shift/ Slot Question Paper PDF
August 26 Shift 1 Check Here
August 26 Shift 2 Check Here
August 27 Shift 1 Check Here
August 27 Shift 2 Check Here
August 31 Shift 1 Check Here
August 31 Shift 2 Check Here
September 1 Shift 2 Check Here

JEE Main 2021 Chemistry Question Paper with Solution (Session 3- July)- Download PDF

Exam Date Shift/ Slot Question Paper PDF
July 22 Shift 2 Check Here
July 25 Shift 1 Check Here
July 25 Shift 2 Check Here
July 27 Shift 1 Check Here
August 3 Shift 1 Check Here
August 3 Shift 2 Check Here
August 4 Shift 1 Check Here
August 4 Shift 2 Check Here

JEE Main 2021 Chemistry Question Paper with Solution (Session 2- March)- Download PDF

Exam Date Shift/ Slot Question Paper PDF
March 16 Shift 1 Check Here
March 16 Shift 2 Check Here
March 17 Shift 1 Check Here
March 17 Shift 2 Check Here
March 18 Shift 1 Check Here
March 18 Shift 2 Check Here

JEE Main 2021 Chemistry Question Paper with Solution (Session 1- February)- Download PDF

Exam Date Shift/ Slot Question Paper PDF
February 24 Shift 1 Check Here
February 24 Shift 2 Check Here
February 25 Shift 1 Check Here
February 25 Shift 2 Check Here
February 26 Shift 1 Check Here
February 26 Shift 2 Check Here

JEE Main 2020 Chemistry Question Paper

JEE Main 2020 Chemistry Question Paper with Solutions (Session 2- September)- Download PDF

Exam Date Shift/ Slot JEE Main Question Paper PDF
September 2 Shift 1 Check Here
September 2 Shift 2 Check Here
September 3 Shift 1 Check Here
September 3 Shift 2 Check Here
September 4 Shift 1 Check Here
September 4 Shift 2 Check Here
September 5 Shift 1 Check Here
September 5 Shift 2 Check Here
September 6 Shift 1 Check Here
September 6 Shift 2 Check Here

JEE Main 2020 Chemistry Question Paper with Solutions (Session 1- January)- Download PDF

Exam Date Shift/ Slot JEE Main Question Paper PDF
January 8 Shift 1 Check Here
January 8 Shift 2 Check Here
January 9 Shift 1 Check Here
January 9 Shift 2 Check Here

Important Topics Related to Nuclear Chemistry and Environment: 

NCERT Class 11 Chemistry Books

NCERT Class 12 Chemistry Book

Frequently Asked Questions

Is nuclear chemistry important for JEE Mains?

Yes, Nuclear Chemistry is an important topic of JEE Main, although it carries low to moderate weightage (1-2 questions annually). Important topics such as radioactive decay, half-life, nuclear reactions, and binding energy are commonly asked.

Is environmental chemistry important for JEE Mains?

Yes, Environmental Chemistry is a crucial topic in JEE Main, but it is a low weightage topic with normally 1 question per year. Major topics are air and water pollutants, ozone depletion, the greenhouse effect, and green chemistry. The majority of questions are factual and conceptual and hence it is a scoring subject.

Which part of chemistry is most scoring in JEE Mains?

In JEE Main, Physical Chemistry is usually the highest scoring because it contains formula-based numerical problems, whereas Organic Chemistry is also a high-scoring section if one understands the concepts and reaction mechanisms.

Below is the Distribution of high scoring topics:

Section Scoring Potential Key Topics
Physical Chemistry High (Numerical-based)
  • Mole Concept
  • Thermodynamics
  • Electrochemistry
Organic Chemistry High (Conceptual)
  • Reaction Mechanisms
  • Named Reactions
  • Biomolecules
Inorganic Chemistry Moderate (Fact-based)
  • Periodic Table
  • Coordination Compounds
  • Chemical Bonding

Is nuclear chemistry in the JEE Advanced syllabus?

Yes, nuclear chemistry is included in the JEE Advanced syllabus, especially as part of the physical chemistry section, including topics like nuclear reactions, radioactive decay, and applications of nuclear chemistry.

SHARE ON FACEBOOKSHARE ON TWITTER

JEE Main Questions

  • 1.

    The least acidic compound, among the following is

      • D
      • A
      • B
      • C
      View Solution

    • 2.

        View Solution

      • 3.
        Let \( \vec{a} = \hat{i} + 2\hat{j} + \hat{k} \) and \( \vec{b} = 2\hat{i} + 7\hat{j} + 3\hat{k} \). Let \( L_1 : \vec{r} = (-\hat{i} + 2\hat{j} + \hat{k}) + \lambda \vec{a}, \lambda \in {R} \) and \( L_2 : \vec{r} = (\hat{j} + \hat{k}) + \mu \vec{b}, \mu \in \mathbb{R} \) be two lines. If the line \( L_3 \) passes through the point of intersection of \( L_1 \) and \( L_2 \), and is parallel to \( \vec{a} + \vec{b} \), then \( L_3 \) passes through the point:

          • \( (5, 17, 4) \)
          • \( (8, 26, 12) \)
          • \( (2, 8, 5) \)
          • \( (-1, -1, 1) \)
          View Solution

        • 4.


          In the given circuit the sliding contact is pulled outwards such that the electric current in the circuit changes at the rate of 8 A/s. At an instant when R is 12 Ω, the value of the current in the circuit will be          A.

            • 2 A
            • 4 A
            • 3 A
            • 5 A
            View Solution

          • 5.
            Density of 3 M NaCl solution is 1.25 g/mL. The molality of the solution is:

              • 2.79 m
              • 1.79 m
              • 3 m
              • 2 m
              View Solution

            • 6.

              The maximum speed of a boat in still water is 27 km/h. Now this boat is moving downstream in a river flowing at 9 km/h. A man in the boat throws a ball vertically upwards with speed of 10 m/s. Range of the ball as observed by an observer at rest on the river bank is _________ cm. (Take \( g = 10 \, {m/s}^2 \)).

                  View Solution
                View All

                Fees Structure

                Structure based on different categories

                CategoriesState
                General1000
                Women800
                sc500
                pwd500
                Others900

                Note: The application fee for choosing exam centers in India and countries other than India varies.

                In case of any inaccuracy, Notify Us! 

                Comments

                No Comments To Show

                SUBSCRIBE TO OUR NEWS LETTER

                COLLEGE NOTIFICATIONS
                EXAM NOTIFICATIONS
                NEWS UPDATES
                TOP COLLEGES
                m.b.a
                b.tech/b.e
                mca
                bca
                m.tech
                ma
                ba
                TOP UNIVERSITIES
                engineering
                management
                medical
                law
                commerce
                science
                arts
                Top Exam
                cat
                gate
                jee-main
                neet
                xat
                clat
                mat
                study abroad
                canada
                usa
                uk
                uae
                australia
                germany
                sweden
                ireland
                new zealand
                hong kong
                singapore
                malaysia
                netherlands
                italy
                other links
                about collegedunia
                contact us
                advertising
                career
                terms & conditions
                Download the Collegedunia app on downloadapp_banner imagedownloadapp_banner image
                © 2025 Collegedunia Web Pvt. Ltd. All Rights Reserved