Exam-Style Online Test | Class 11: States Of Matter Test
GK Aim: A Treasure of MCQs

Class 11 Chemistry — Chapter 5: States of Matter Online Test

Start Your Test by Choosing a Paper

0%

Class 11 Chemistry: States of Matter Online Test (Paper 1)

Welcome to Paper 1! This is your foundation to build confidence and get you ready to tackle the challenges ahead.

  • Total Questions: 20
  • Time Allotted: 30 minutes
  • Passing Score: 40%
  • Randomization: No
  • Certificate: No
  • Retake: Allowed
  • Price: 100% Free

Good luck! 👍

1 / 20

1. A rigid vessel at contains mol and mol . An electric spark causes complete reaction . After cooling back to , what is the final pressure?

2 / 20

2. Which property makes supercritical fluids useful as solvents in industry?

3 / 20

3. Which curve best represents the relation between vapour pressure and temperature?

4 / 20

4. What is the critical temperature of CO₂ observed in Andrews’ experiments?

5 / 20

5. The van der Waals constant has which units (for 1 mol gas)?

6 / 20

6. Why is added to pressure in the van der Waals equation?

7 / 20

7. At very low pressure, the compressibility factor of a real gas approaches:

8 / 20

8. If for a gas, it means:

9 / 20

9. If hydrogen () has an RMS speed of 1840 m/s at a given temperature, what is the RMS speed of oxygen () at the same temperature?

10 / 20

10. Which relation connects pressure, volume, and average kinetic energy of molecules?

11 / 20

11. Which constant directly connects molecular kinetic energy with absolute temperature?

12 / 20

12. Which assumption of kinetic theory explains the compressibility of gases?

13 / 20

13. Which of the following statements is correct about Dalton’s law?

14 / 20

14. If 3 L of nitrogen gas contains molecules at constant T and P, how many molecules will 6 L of nitrogen contain?

15 / 20

15. Which statement is true about Avogadro’s number ()?

16 / 20

16. The graph of Gay Lussac’s law (Pressure vs Temperature) is:

17 / 20

17. Which everyday example best demonstrates Charles’ law?

18 / 20

18. Boyle’s law is valid under which condition?

19 / 20

19. Which has stronger intermolecular forces: or ?

20 / 20

20. The correct order of diffusion rate at room temperature is:

Please provide information to view your result.

Your score is

Share your achievement!

LinkedIn Facebook Twitter
0%

Please provide your feedback.

Thank you for your valuable feedback.

0%

Class 11 Chemistry: States of Matter Online Test (Paper 2)

Welcome to Paper 2! You’ve mastered the basics, and now it’s time to test your understanding with a more challenging set of questions.

Get new questions on each attempt

  • Total Questions: 30
  • Time Allotted: 45 minutes
  • Passing Score: 50%
  • Randomization: Yes
  • Certificate: No
  • Retake: Allowed
  • Price: 100% Free

Good luck! 👍

1 / 30

1. Boyle’s law is valid under which condition?

2 / 30

2. Which of the following best describes the nematic liquid crystal phase?

3 / 30

3. Why do gases deviate from ideality at high pressure?

4 / 30

4. Which gas law explains why lungs may overexpand and rupture if a scuba diver ascends too quickly?

5 / 30

5. If molecules of mass are in a volume , which expression gives pressure?

6 / 30

6. Why is ion–dipole force stronger than dipole–dipole force?

7 / 30

7. Which pair of gases will diffuse at approximately the same rate?

8 / 30

8. Which set of properties best distinguishes solids from liquids and gases?

9 / 30

9. For a real gas, indicates:

10 / 30

10. Which equation relates vapour pressure and enthalpy of vaporization?

11 / 30

11. The van der Waals equation for real gases is:

12 / 30

12. Which intermolecular force is primarily responsible for the liquefaction of nonpolar gases like and ?

13 / 30

13. Which molecular motion dominates in solids?

14 / 30

14. Smectic liquid crystals are less commonly used in displays compared to nematic because:

15 / 30

15. Surface tension of a liquid is defined as:

16 / 30

16. Why does water have a much higher boiling point than hydrogen sulfide ()?

17 / 30

17. Thermal energy of a system is defined as:

18 / 30

18. Cholesteric (chiral nematic) liquid crystals are characterized by:

19 / 30

19. Which compound has the highest boiling point due to intermolecular forces?

20 / 30

20. Which of the following order of strength is correct for intermolecular forces?

21 / 30

21. Which property enables gases to be stored in large amounts in small steel cylinders?

22 / 30

22. Which feature distinguishes the smectic phase from the nematic phase?

23 / 30

23. Which curve best represents the relation between vapour pressure and temperature?

24 / 30

24. Which gas can be liquefied more easily due to stronger London dispersion forces?

25 / 30

25. Which graph represents Gay Lussac’s law correctly?

26 / 30

26. Which assumption of kinetic theory explains why gases have neither definite shape nor definite volume?

27 / 30

27. At what temperature will the pressure of a gas become zero, if it obeyed Gay Lussac’s law perfectly?

28 / 30

28. Which of the following equations is used to measure viscosity of liquids using capillary flow?

29 / 30

29. A mixture of gases contains 2 mol and 1 mol . If the total pressure is 9 atm, the partial pressure of helium is:

30 / 30

30. The average translational kinetic energy of one molecule of an ideal gas is given by:

Please provide information to view your result.

Your score is

Share your achievement!

LinkedIn Facebook Twitter
0%

Please provide your feedback.

Thank you for your valuable feedback.

0%

Class 11 Chemistry: States of Matter Online Test (Paper 3)

Welcome to Paper 3! You’ve warmed up—now it's time to step up your game and conquer the challenge with tougher questions!

Earn a certificate upon passing

Get new questions with every attempt

  • Total Questions: 50
  • Time Allotted: 75 minutes
  • Passing Score: 70%
  • Randomization: Yes
  • Certificate: Yes
  • Retake: Allowed
  • Price: 100% Free

Good luck! 👍

1 / 50

1. Why does viscosity of gases increase with temperature, unlike liquids?

2 / 50

2. A mixture of H₂ and O₂ in a container has a total pressure of 2 atm. If the mole fraction of H₂ is 0.4, calculate partial pressures of both gases.

3 / 50

3. Which statement about densities is correct?

4 / 50

4. Surface tension decreases with:

5 / 50

5. Which of the following increases with addition of surfactants in water?

6 / 50

6. In the van der Waals equation, the constant represents:

7 / 50

7. If hydrogen () has an RMS speed of 1840 m/s at a given temperature, what is the RMS speed of oxygen () at the same temperature?

8 / 50

8. Which of the following gases will show exact proportionality of volume with temperature under Charles’ law?

9 / 50

9. Which relation connects pressure, volume, and average kinetic energy of molecules?

10 / 50

10. A given gas occupies 200 mL at 740 mmHg. What volume will it occupy at 760 mmHg, assuming constant T?

11 / 50

11. In an experiment, 100 mL of hydrogen diffuses in 25 seconds. How long will it take for the same volume of oxygen () to diffuse under identical conditions?

12 / 50

12. The van der Waals constant has which units (for 1 mol gas)?

13 / 50

13. A gas cylinder contains 5.0 mol of O₂ and 3.0 mol of N₂ at 300 K in a 10 L container. Calculate the total pressure of the mixture using the ideal gas equation ().

14 / 50

14. Which state of matter results when intermolecular forces greatly exceed thermal energy?

15 / 50

15. Which property of supercritical fluids is closer to liquids?

16 / 50

16. Why does honey flow more slowly than water?

17 / 50

17. One mole of oxygen gas at STP occupies 22.4 L. What volume will 0.5 mol of oxygen occupy under the same conditions?

18 / 50

18. Which of the following gases will have the smallest value of ?

19 / 50

19. A steel cylinder contains oxygen gas at 10 atm and 300 K. If the cylinder is heated to 600 K without changing volume, what will be the new pressure?

20 / 50

20. A sample of hydrogen gas is collected over water at 25°C. If total pressure is 760 mmHg and vapor pressure of water is 24 mmHg, what is the pressure of hydrogen?

21 / 50

21. Charles’ law states that for a fixed mass of gas at constant pressure:

22 / 50

22. The diffusion rate of (M=28) compared to (M=44) is:

23 / 50

23. In the isotherms of CO₂ obtained by Andrews, the horizontal flat portion represents:

24 / 50

24. In the kinetic theory of gases, the pressure exerted by a gas on the container walls is due to:

25 / 50

25. Which of the following correctly represents enthalpy of sublimation ()?

26 / 50

26. The critical temperature () of a gas is defined as:

27 / 50

27. At absolute zero (), the thermal energy of an ideal gas is:

28 / 50

28. If 1 L of hydrogen escapes from a small hole in 10 minutes, how much oxygen will escape in the same time under identical conditions?

29 / 50

29. A gas mixture contains 2 mol of O₂, 3 mol of N₂, and 1 mol of CO₂ in a 20 L container at 300 K. Calculate the total pressure and the partial pressure of CO₂. ( L·atm·K⁻¹·mol⁻¹)

30 / 50

30. Why do solids have fixed shape compared to liquids and gases?

31 / 50

31. The constant obtained in Boyle’s law, , depends on:

32 / 50

32. Which of the following molecules is expected to exhibit only London dispersion forces?

33 / 50

33. Which conclusion can be drawn from the three types of molecular speeds?

34 / 50

34. Which interaction is responsible for the solubility of ionic compounds in polar solvents?

35 / 50

35. Which intermolecular force plays the major role in dissolving NaCl in water?

36 / 50

36. According to kinetic theory, the average kinetic energy of a molecule of an ideal gas is:

37 / 50

37. Which type of gas will have a higher value of ?

38 / 50

38. If the pressure of a fixed mass of gas is plotted against its reciprocal of volume (1/V), the graph is:

39 / 50

39. Why does Dalton’s law hold true for ideal gases?

40 / 50

40. Why does graphite have a very high melting point?

41 / 50

41. A mixture of 2 mol , 2 mol , and 4 mol exerts 1 atm total pressure. The partial pressure of nitrogen is:

42 / 50

42. What makes liquid crystals fundamentally important in modern materials science?

43 / 50

43. A fixed mass of gas expands from to at the same temperature. The ratio of final to initial density is:

44 / 50

44. A gas sample has volume 2.0 L at 300 K. What will be its volume at 450 K if pressure remains constant?

45 / 50

45. Which curve best represents the relation between vapour pressure and temperature?

46 / 50

46. How does viscosity of a liquid change with temperature?

47 / 50

47. Which equation relates pressure, volume, temperature, and moles for an ideal gas?

48 / 50

48. A 10 L container has 2 mol of N₂ and 3 mol of H₂ at 300 K. A spark is introduced and gases react to form NH₃. If reaction goes to completion, what is the total pressure after cooling to 300 K? ()

49 / 50

49. If a gas exerts 760 mmHg pressure at 273 K, what pressure will it exert at 546 K at constant volume?

50 / 50

50. Which liquid has the highest surface tension at room temperature?

Please provide accurate information so we can send your Achievement Certificate by mail.

Your score is

Share your achievement!

LinkedIn Facebook Twitter
0%

Please provide your feedback.

Thank you for your valuable feedback.

Practice States of Matter MCQs
Download Class 11 Chemistry MCQ Study Bundle

Class 11 Chemistry — Chapter 5: States of Matter Online Test

Welcome to the Class 11 Chemistry: Chapter 5 – States of Matter Online Test page. This test offers a collection of 494 MCQs that cover the essential concepts of the states of matter, including gases, liquids, and solids. The online test is designed to help you strengthen your understanding and master the key topics in this chapter. It is free, aligned with the CBSE/NCERT curriculum, and available for unlimited attempts. Each paper is timed, and you will get instant feedback after each attempt.

Struggling with the gas laws, or trying to understand intermolecular forces? This test is an excellent way to practice and prepare yourself for upcoming exams. Think of this as your personal online mock test for the States of Matter chapter, available anytime on your phone or computer. Whether you’re a beginner or an advanced learner, you can progress through the Easy, Medium, and Hard levels, and track your improvements as you go.

What is this Class 11 Chemistry: States of Matter Online Test?

This page features three different difficulty levels of the MCQ test for Chapter 5:

  • Paper 1 (Easy) — Foundation: 20 questions · 30 min · Pass 40% · Fixed set
  • Paper 2 (Medium) — Mixed: 30 questions · 45 min · Pass 50% · Randomized from a pool of ~494 questions
  • Paper 3 (Hard) — Challenge: 50 questions · 75 min · Pass 70% · Randomized from the same pool + Certificate on pass

Note: Paper 2 and Paper 3 are randomized, so you’ll get a new set of questions on each attempt. The test is timed, and once you submit your answers, you’ll instantly see your score and a review of your responses.

Topics covered in these online tests

This test focuses on essential topics in Chapter 5, which covers the three states of matter and their properties. The main concepts that you will practice include:

  • Properties of Gases — Ideal gas law, gas laws, Boyle’s law, Charles’ law, and real gases
  • Ideal Gas Equation — PV = nRT, applications of the ideal gas equation
  • Liquids — Properties of liquids, viscosity, surface tension, and capillarity
  • Solids — Properties of solids, crystal lattices, and unit cells
  • Intermolecular Forces — Types of forces, dipole-dipole interactions, hydrogen bonding, London dispersion forces
  • Gas Laws & Kinetic Molecular Theory — Kinetic theory of gases, deviations from ideal gas behavior, Maxwell’s distribution of velocities
  • Liquefaction of Gases — Critical temperature, critical pressure, Van der Waals equation of state
  • Real Gases — Compressibility factor, deviations from ideal gas behavior
  • Surface Chemistry — Adsorption, adsorption isotherms, catalysis

How This Exam-Style Online Test Works

Simple Steps: Select a paper → Answer the questions within the time limit → Submit → View your results instantly with a detailed breakdown.

What you’ll experience in this test

  • MCQs: One question with four possible answers (A, B, C, D).
  • Timer on top: Paper 1: 30 minutes • Paper 2: 45 minutes • Paper 3: 75 minutes.
  • Pagination: Typically 10 questions per page. Use navigation to move between questions.
  • Answer Review: After finishing the test, you’ll receive your score, along with the correct answers and detailed explanations.
  • Instant Feedback: Click View Result to see your score, and review the questions you answered incorrectly.
  • Retake Option: Click Restart Test to try again with a new set of questions (Paper 2 & 3).

Note: Share your feedback on the result page after completing the test to help us improve.

Marking & Pass Criteria

  • Scoring: +1 for every correct answer, 0 for incorrect (no negative marking).
  • Passing Marks: Paper 1 — 40% • Paper 2 — 50% • Paper 3 — 70%.
  • Randomization: Paper 2 & Paper 3 will shuffle questions from a pool of ~494 questions. Paper 1 remains fixed.

Who can take this test?

  • Class 11 CBSE students preparing for unit tests, half-yearlies, and final exams.
  • Class 12 bridge students revising basic concepts of States of Matter.
  • JEE/NEET aspirants focusing on understanding gas laws, properties of gases, and real gases for competitive exams.
  • School teachers / tutors needing a ready-to-use, chapter-specific test for homework, practice, or revision.
  • Self-learners and homeschoolers who wish to test their knowledge and improve concepts.

Benefits of this online test

  • Exam-like experience: Get a feel for timed, exam-style questions with real-time feedback.
  • Instant results: Learn from your mistakes immediately after each attempt.
  • Stepped-up difficulty: Start with the basics, progress to intermediate questions, and challenge yourself with harder ones.
  • Unlimited attempts: Practice as often as you like to improve speed and accuracy.
  • Zero cost: No fees or hidden charges — completely free for all students.

How this test can help you study better

  • Step 1 – Initial understanding: Try Paper 1 to check your knowledge on fundamental concepts.
  • Step 2 – Consolidate learning: Move to Paper 2 (randomized) to cover intermediate-level questions.
  • Step 3 – Challenge yourself: Attempt Paper 3 to strengthen exam-readiness with tougher questions.
  • Step 4 – Review mistakes: Revisit wrong answers, learn from them, and improve your accuracy.

Important Notes (read before starting)

  • Do not refresh or close the test tab to avoid losing progress.
  • Best experience: Use a modern browser (Chrome/Edge), stable internet connection, and a distraction-free environment.
  • Allow cookies / local storage for smooth tracking of progress and results.
  • Safety: This test is 100% FREE, and there are no hidden charges.

Additional Practice for Class 11 Chemistry

To continue your preparation, explore the full collection of Class 11 Chemistry MCQs: Class 11 Chemistry Online Test Index or practice all chapters from the Class 11 Chemistry MCQ Collection.

FAQs on States of Matter Online Test ▼

Subscribe
Notify of
guest
0 Comments
Inline Feedbacks
View all comments

Related MCQs

Scroll to Top