CBSE Class 9 Important Questions for All Subjects

CBSE Class 9 important questions for all subjects: Preparing for CBSE Class 9 exams requires a strategic approach, focusing on the main concepts in all subjects. This chapter-wise guide compiles important questions for Mathematics, Science, Social Science, and English, aiding students in effective revision and enhancing their understanding. 

Importance of Chapter-wise Important Questions

Chapter-wise important questions act as a roadmap for students, highlighting important topics and typical question patterns. They facilitate targeted revision, reinforce learning, and improve problem-solving skills, ultimately boosting confidence and exam performance. Use these class 9 important questions to ace the exam.

Check out: Class 9 Sample Papers

Mathematics

Mathematics in Class 9 introduces foundational concepts essential for higher studies. Focusing on important questions for class 9 maths from each chapter can solidify understanding and application.

Chapter 1: Number Systems

1. Question: Explain the difference between rational and irrational numbers with examples.

2. Question: Convert the decimal 0.¯6 (0.666...) into a fraction.

3. Question: Represent √2 on the number line.

4. Question: Simplify: (2 + √3)(2 - √3).

5. Question: Express 0.¯47 (0.474747...) in the form p/q.

6. Question: Classify the following numbers as rational or irrational: √16, π, 0.1010010001...

7. Question: Find five rational numbers between 1 and 2.

8. Question: Simplify: (5√3 - 2√3).

9. Question: If x = 2 + √3, find the value of 1/x.

10. Question: Rationalize the denominator: 1/(√5 - √2).

Chapter 2: Polynomials

1. Question: Classify polynomials based on their degrees and provide examples.

2. Question: Find the zeros of the polynomial p(x) = x² - 5x + 6.

3. Question: Verify that x = 2 is a zero of the polynomial p(x) = x³ - 6x² + 11x - 6.

4. Question: Divide the polynomial 2x³ + 3x² - 5x + 6 by x - 2.

5. Question: Find the remainder when p(x) = x⁴ - 3x³ + x - 5 is divided by x - 1.

6. Question: If α and β are the zeros of the polynomial x² - 4x + 3, find the value of α + β and αβ.

7. Question: Express x³ + 8 as a product of polynomials.

8. Question: Find a quadratic polynomial whose zeros are 3 and -2.

9. Question: Prove that x - 1 is a factor of x³ - 3x² + x - 3.

10. Question: If p(x) = x³ - ax² + bx - c has zeros 1, 2, and 3, find the values of a, b, and c.

Chapter 3: Coordinate Geometry

1. Question: Plot the points (2,3), (-1,2), (0,-3), and (-2,-2) on the Cartesian plane.

2. Question: Determine the distance between the points (4,5) and (1,1).

3. Question: Find the midpoint of the line segment joining (2, -3) and (-4, 5).

4. Question: Calculate the area of the triangle formed by the points (1,2), (4,6), and (6,2).

5. Question: Show that the points (3,4), (5,6), and (7,8) are collinear.

6. Question: Find the coordinates of the point that divides the line segment joining (2,3) and (4,5) in the ratio 2:3.

7. Question: If the point (x, y) is equidistant from (2,3) and (4,5), find the relation between x and y.

8. Question: Determine the coordinates of the centroid of the triangle with vertices at (1,2), (3,4), and (5,6).

9. Question: Find the slope of the line passing through the points (2,3) and (5,7).

10. Question: If the points (a,2), (3,b), and (4,5) are collinear, find the values of a and b.

Chapter 4: Linear Equations in Two Variables

1. Question: Solve the system of equations: 2x + 3y = 12 and x - y = 3.

2. Question: Graph the equation y = 2x + 1 and identify the y-intercept.

3. Question: Find the value of k if the line 3x + ky = 9 passes through the point (2,1).

4. Question: Determine whether the lines represented by the equations x + 2y = 3 and 2x + 4y = 6 are parallel, perpendicular, or coincident.

5. Question: Find the equation of the line passing through the points (1,2) and (3,4).

6. Question: If (3, k)
   

Check out: Class 9th Combo Set of 5 Books

Science

Class 9 Science involves conceptual and application-based learning. The following chapter-wise important questions for class 9 science will help students prepare effectively:

Chapter 1: Matter in Our Surroundings

1. Define matter. Explain its physical nature.

2. What is the latent heat of fusion?

3. Explain the process of sublimation with an example.

4. Differentiate between boiling and evaporation.

5. Why does evaporation cause cooling?

6. State two factors affecting the rate of evaporation.

7. Explain why a gas exerts pressure on the walls of a container.

8. Describe an experiment to demonstrate diffusion in liquids.

9. Why does steam cause more severe burns than boiling water?

10. Classify the following as solid, liquid, or gas: ice, water vapor, and petrol.

Chapter 2: Is Matter Around Us Pure?

1. Differentiate between homogeneous and heterogeneous mixtures.

2. What is a solution? Give two examples.

3. Define colloids and list their characteristics.

4. Explain the process of centrifugation.

5. Describe the method of separating a mixture of salt and camphor.

6. What is chromatography? Mention one of its applications.

7. Write the differences between compounds and mixtures.

8. What are alloys? Give two examples.

9. How can we separate a mixture of oil and water?

10. Define the Tyndall effect with an example.

Check Out - CBSE Class 9 Question Bank

Chapter 3: Atoms and Molecules

1. State the law of conservation of mass with an example.

2. Define atomicity with suitable examples.

3. Write the chemical formula of magnesium chloride.

4. Calculate the molecular mass of CO₂.

5. Explain Dalton’s atomic theory.

6. Differentiate between molecules of elements and molecules of compounds.

7. Write the formulae of the compounds formed by Na⁺ and SO₄²⁻.

8. What is the significance of a chemical formula?

9. Explain the concept of molar mass.

10. Define the term ‘ion’ and give two examples.

Chapter 4: Structure of the Atom

1. What are the limitations of J.J. Thomson's atomic model?

2. Explain Rutherford’s gold foil experiment.

3. Differentiate between isotopes and isobars.

4. What is a proton? How was it discovered?

5. Draw a labeled diagram of Bohr’s model of the atom.

6. Calculate the number of neutrons in an atom of chlorine with a mass number of 35.

7. Explain why isotopes of an element exhibit similar chemical properties.

8. What is the significance of valency in a chemical reaction?

9. Write the electronic configuration of an atom with atomic number 15.

10. State the modern periodic law.

Check out: Class 9th Revision Books

Social Science (SST)

Social Science in Class 9 covers History, Geography, Political Science, and Economics. Below are  class 9 sst important questions.

 from each subject:

History: Chapter 1 - The French Revolution

1. What were the causes of the French Revolution?

2. Explain the role of philosophers in the revolution.

3. What was the significance of the storming of the Bastille?

4. Define the term ‘estates’ in the French society.

5. Discuss the reforms introduced by Napoleon Bonaparte.

6. Write a short note on the Reign of Terror.

7. How did the French Revolution influence the world?

8. What were the key features of the Declaration of the Rights of Man?

9. Explain the role of women in the French Revolution.

10. Who were the Jacobins? Discuss their significance.

Geography: Chapter 1 - India: Size and Location

1. What is the latitudinal and longitudinal extent of India?

2. Explain the significance of the Tropic of Cancer in India.

3. Name the neighboring countries of India.

4. Discuss the importance of the Indian Ocean for India.

5. Define the term ‘Indian Standard Time (IST).’

6. Write a short note on India’s size and population.

7. Why is India called a subcontinent?

8. Name the northernmost point of India.

9. What are the implications of India’s central location?

10. Explain the concept of time zones with an example from India.

Political Science: Chapter 1 - Democracy in the Contemporary World

1. Define democracy. What are its key features?

2. What are the arguments against democracy?

3. Discuss the challenges to democracy in contemporary times.

4. Explain the role of Nelson Mandela in South Africa’s democracy.

5. What was the outcome of the 1994 elections in South Africa?

6. Differentiate between direct and representative democracy.

7. Write a short note on Chile’s transition to democracy.

8. Discuss the role of the UN in promoting democracy.

9. What is meant by Universal Adult Franchise?

10. Explain why democracy is considered the best form of government.

Economics: Chapter 1 - The Story of Village Palampur

1. Define the term ‘factors of production.’

2. What is the role of human capital in production?

3. Explain the importance of non-farming activities in rural areas.

4. Discuss the concept of ‘Green Revolution.’

5. Why is land considered a fixed factor of production?

6. Write a note on surplus production in agriculture.

7. What are the limitations of the farming sector?

8. Define the term ‘market’ in the context of rural areas.

9. What is the significance of irrigation in farming?

10. Differentiate between small and large farmers.

English

English focuses on language skills and literature. The following are class 9 English important questions based on key chapters and grammar:

Prose

1. Write a character sketch of the narrator from "The Lost Child."

2. What is the central theme of "A Truly Beautiful Mind"?

3. How does Evelyn Glennie inspire others in "The Sound of Music"?

4. Write a summary of "The Snake and the Mirror."

5. What message does the story "My Childhood" convey?

Poetry

6. Explain the theme of the poem "The Road Not Taken."

7. How does the poet describe the fog in "Fog"?

8. What is the moral of the poem "The Lake Isle of Innisfree"?

9. Analyze the use of imagery in the poem "A Legend of the Northland."

10. What is the significance of the tiger in "The Tiger in the Zoo"?

Grammar

1. Rewrite the sentence: “He will go to the market tomorrow,” into passive voice.

2. Identify and correct the error: “She don’t know the answer.”

3. Fill in the blank with the correct preposition: “He is good ___ Mathematics.”

4. Combine the sentences: “He is very old. He cannot walk.”

5. Transform into indirect speech: “She said, ‘I am reading a book.’”

6. Identify the noun clause in the sentence: “What he said was true.”

7. Change the voice: “The teacher praised the student.”

8. Choose the correct option: “Neither of the answers ___ correct (is/are).”

9. Fill in the blank: “If I were a bird, I ___ fly.”

10. Rewrite: “She is too tired to work” into a compound sentence.

Preparing well is important to ace exams. A curated list of CBSE class 9 important questions is a good place to start. These questions are written by subject and chapter and cover all vital concepts systematically in Mathematics, Science, Social Science, and English. Regular practice of these questions improves understanding and time management during exams. 

Check out: Class 9th English Book

CBSE Class 9 important questions FAQs

1. Are the important questions aligned with the CBSE syllabus?

Yes, these questions are based on the latest CBSE syllabus and cover all subjects, ensuring students are well-prepared for their exams.

2. How can practicing chapter-wise questions improve my performance?

Practicing chapter-wise questions allows students to understand topics deeply, identify weak areas, and gain confidence by solving questions from every chapter.

3. Why are important questions for Class 9 necessary for exam preparation?

Important questions help students focus on the most relevant topics and concepts likely to appear in exams. They also provide a structured way to revise and practice effectively.

4. How do I prepare for subjective and objective questions differently?

You can practice for subjective questions, focus on understanding the concepts, and practice written answers. For objective questions, revise definitions, formulas, and key points.