Environmental Chemistry is a crucial topic in the JEE Main syllabus, focusing on the study of chemical processes occurring in the environment and their effects on both natural and human systems. It covers a wide range of concepts, including pollution, biogeochemical cycles, and the chemistry of air, water, and soil. Understanding this topic not only helps in scoring well in JEE Main but also develops a deeper awareness of environmental issues. Previous year questions related to Environmental Chemistry play a vital role in preparing for the exam. By solving these questions, students can familiarize themselves with the types of problems asked, improve their problem-solving speed, and grasp the core concepts effectively. This blog will provide a collection of previous year questions from JEE Main, along with detailed solutions, to help you strengthen your grasp on Environmental Chemistry and enhance your performance in the exam.
JEE Main Environmental Chemistry: Let us look at the questions asked from Environmental Chemistry in JEE Main exam over the past few years.
1. Which is wrong with respect to our responsibility as a human being to protect our environment?
Solution: The correct option for the given question is (c).
2. BOD stands for
Solution: The correct option for the given question is (c).
3. The layer of atmosphere between 10 km and 50 km above the sea level is called
Solution: The correct option for the given question is (c).
4. Addition of phosphate fertilizers to water bodies causes
Solution: The correct option for the given question is (a).
5. Water samples with BOD values of 4 ppm and 18 ppm, respectively, are
Solution: The correct option for the given question is (a).
6. Excessive release of CO2 into the atmosphere results in
Solution: The correct option for the given question is (a).
7. The higher concentration of which gas in the air can cause stiffness of flower buds?
Solution: The correct option for the given question is (a).
8. Air pollution that occurs in sunlight is
Solution: The correct option for the given question is (a).
9. The gas leaked from a storage tank of the Union Carbide plant in the Bhopal gas tragedy was
Solution: The correct option for the given question is (b).
10. The maximum prescribed concentration of copper in drinking water is
Solution: The correct option for the given question is (b).
11. Taj Mahal is being slowly disfigured and discoloured. This is primarily due to
Solution: The correct option for the given question is (a).
12. The upper stratosphere consisting of the ozone layer protects us from the sun’s radiation that falls in the wavelength region of
Solution: The correct option for the given question is (c).
13. Identify the wrong statement in the following.
Solution: The correct option for the given question is (d).
14. Which one of the following substances used in dry cleaning is a better strategy to control environmental pollution?
Solution: The correct option for the given question is (b).
15. The smog is essentially caused by the presence of
Solution: The correct option for the given question is (c).
16. Which of the following conditions in drinking water causes methemoglobinemia?
Solution: The correct option for the given question is (b).
In the JEE mains assessment, an aggregate of somewhere around 2-3 inquiries are posed from the subject concerning Environmental Chemistry. These inquiries together convey an absolute weightage of 6.6 rates. As the wannabes are very much aware that every one of the inquiries in the assessments conveys equivalent significance as they help in expanding and supporting the positions and level of the up-and-comer. In this way, it is right to express that the subject concerning Environmental Chemistry likewise has equivalent significance as some other theme.
Ecological Chemistry alludes to the compound and biochemical peculiarity in our temperament. As we know that the planet earth is the amassing of different moment substances and particles. These respond to frame new particles. In this way, it is reasoned that the planet earth is a shut framework, and all the energy that is applied comes and leaves the planet, where the mass frequently remains behind in the planet. This finishes up and demonstrates that every one of the components on this planet is reused consistently inside the climate.