FBISE Chemistry 2025: Important Short & Long Questions for 2nd Annual Class 9

Second Annual Exam Prep

Grade 9 Chemistry — Important Questions

Complete set of important exam-prep questions for revision.

Grade 9 Second Annual Free Revision Pack

NASA Academy — Channel

Watch Quick Concepts & Numericals

Bite-size explanations, solved examples, and exam-oriented tips. New videos every week.

Watch on YouTube

Admissions Open

Enroll Now — Physics Excellence Program

Limited seats • Concept mastery • Past paper drills • Weekly assessment & feedback.

Apply Today

Chapter 01

Fundamentals of Chemistry

1. How do the fundamental concepts of chemistry help us in daily life?
2. Give examples of how chemistry helps in the formation of new substances and technologies.
3. How is green chemistry helpful in understanding and reducing pollution?
4. What is the model of chemical products and processes that reduces the use of hazardous substances?
5. Why are Li-ion batteries considered important in modern technology?
6. Why is analytical chemistry important in crime investigations?
7. Which fundamental principles do chemists study to control the behavior of matter?
8. Why is science considered a systematic process?
9. What is the role of technology and how it is enhancing our lives?
10. State the importance of converting sunlight into electricity for sustainable energy.
11. Why the monomers are the building blocks of plastic bags?

Chapter 02

States of Matter and Solutions

1. Explain the exotic state of matter?
2. What is the name of the phenomenon in which elements are arranged in different manners and have same physical state?
3. How to know whether a solution is saturated and supersaturated?
4. Why water is called universal solvent?
5. What are alloys?
6. What is Tyndall effect?
7. Why is a solution considered mixture?
8. Illustrate the various form of matter?
9. On what factors solubility depends?

Chapter 03

Structure of Atom

1. How Bohr explains the observed line spectrum of hydrogen atom?
2. What were the drawbacks of Rutherford atomic model?
3. How can we estimate the age of a dead organism?
4. Do chemical properties depend upon the number of neutrons?
5. How does C-14 undergo radioactive decay?

Chapter 04

Periodic Table and Periodicity of Properties

1. Which law makes the periodic table the most important tool in chemistry?
2. To which group do chalcogens belong and why?
3. Why are group 18 elements called precious gases?
4. How do chemical and physical properties depend upon electronic configuration?
5. Why is the 2nd ionization energy greater than the first ionization energy?
6. How does the periodic table help us to know about the position of an unknown element?
7. Show the reactivity trend of halogens and explain why iodine is the least reactive?
8. Enlist some daily life applications of noble gases.