Exam-Style Online Test | Class 11 Chemistry: Hydrogen
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Class 11 Chemistry — Chapter 9: Hydrogen Online Test

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Class 11 Chemistry: Hydrogen 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

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1 / 20

1. In the reaction , which element is oxidized and which element is reduced?

2 / 20

2. The reaction is an example of a:

3 / 20

3. In the reaction , the type of reaction is:

4 / 20

4. In cryogenic hydrogen storage, hydrogen is stored as a:

5 / 20

5. Heavy water (D₂O) is used in biological research because:

6 / 20

6. Which of the following is a characteristic property of covalent hydrides like methane (CH₄), ammonia (NH₃), and water (H₂O)?

7 / 20

7. Hydrogen peroxide can be used to bleach which of the following materials?

8 / 20

8. The primary purpose of the water-gas shift reaction in hydrogen production is to:

9 / 20

9. Which of the following equations represents the reaction between hydrogen and sulfur?

10 / 20

10. Which of the following hydrogen isotopes is radioactive?

11 / 20

11. In what way does hydrogen resemble halogens?

12 / 20

12. Tritium can be artificially produced by:

13 / 20

13. Hydrogen cannot be placed in any one group of the periodic table because:

14 / 20

14. Hydrogen is used in the hydrogenation of vegetable oils to produce:

15 / 20

15. How is hydrogen peroxide prepared in the laboratory?

16 / 20

16. Hydrogen peroxide is used in the food industry primarily as:

17 / 20

17. The bonding in ionic hydrides like NaH and CaH₂ is best described as:

18 / 20

18. Water is a polar molecule because:

19 / 20

19. In addition to nuclear reactors, heavy water (D₂O) is also used in:

20 / 20

20. The reaction is an example of a:

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Class 11 Chemistry: Hydrogen 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.

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

Good luck! 👍

1 / 30

1. In nature, tritium is formed mainly by:

2 / 30

2. Hydrogen peroxide decomposes into oxygen and water when:

3 / 30

3. One of the main challenges of hydrogen fuel cell technology is:

4 / 30

4. In medical tracer studies, heavy water (D₂O) is used to:

5 / 30

5. Which of the following reactions is an example of a double displacement reaction?

6 / 30

6. Heavy water (D₂O) is used as a moderator in nuclear reactors because it:

7 / 30

7. Heavy water (D₂O) is used in biological research because:

8 / 30

8. Titanium hydride (TiH₂) is an example of a:

9 / 30

9. Which of the following reactions is an example of a combustion reaction?

10 / 30

10. Which of the following properties is typical of ionic hydrides like NaH and CaH₂?

11 / 30

11. The radioactive nature of tritium is primarily due to:

12 / 30

12. What is the appearance of concentrated hydrogen peroxide (over 30%)?

13 / 30

13. The main advantage of using heavy water (D₂O) as a moderator in nuclear reactors compared to light water (H₂O) is that:

14 / 30

14. Which of the following methods is used to transport hydrogen over long distances?

15 / 30

15. Hydrogen peroxide is used as an oxidizing agent in which of the following reactions?

16 / 30

16. Which statement about the solubility of dihydrogen in water is correct?

17 / 30

17. Which of the following is a potential future method for hydrogen transport and storage?

18 / 30

18. In the laboratory preparation of hydrogen, what is the role of sulfuric acid when reacting with zinc?

19 / 30

19. Hydrogen peroxide is used in the paper industry primarily for:

20 / 30

20. What is the main use of deuterium in nuclear reactors?

21 / 30

21. Which of the following chemical equations represents a redox reaction?

22 / 30

22. A major environmental advantage of using hydrogen as fuel is that it:

23 / 30

23. What is the density of dihydrogen gas at standard temperature and pressure (STP)?

24 / 30

24. The main function of a hydrogen fuel cell is to:

25 / 30

25. Which of the following chemical equations represents a combination reaction?

26 / 30

26. Which of the following is true about the solubility of hydrogen peroxide in water?

27 / 30

27. Which hydrogen isotope is used in nuclear fusion reactions to produce energy?

28 / 30

28. Hydrogen and halogens both form volatile covalent compounds because:

29 / 30

29. Which of the following hydrogen isotopes is radioactive?

30 / 30

30. Hydrogen peroxide is used in medicine for:

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Class 11 Chemistry: Hydrogen 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!

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

Good luck! 👍

1 / 50

1. In cryogenic hydrogen storage, hydrogen is stored as a:

2 / 50

2. In a water molecule (H₂O), the hydrogen atoms are:

3 / 50

3. Which of the following reactions is an example of a precipitation reaction?

4 / 50

4. The main advantage of using heavy water (D₂O) as a moderator in nuclear reactors compared to light water (H₂O) is that:

5 / 50

5. In the laboratory setup for hydrogen preparation, the gas is collected by:

6 / 50

6. Which of the following reactions correctly represents the combustion of dihydrogen in oxygen?

7 / 50

7. In the electrolysis of water, what is the product formed at the cathode?

8 / 50

8. In the structure of water, each oxygen atom forms how many hydrogen bonds?

9 / 50

9. The open-book structure of hydrogen peroxide means:

10 / 50

10. The bonding in ionic hydrides like NaH and CaH₂ is best described as:

11 / 50

11. Which statement about tritium is true?

12 / 50

12. The freezing point of heavy water (D₂O) is:

13 / 50

13. In the reaction of zinc with sulfuric acid, what role does sulfuric acid play?

14 / 50

14. Hydrogen is an important reducing agent in many industrial processes, including the reduction of:

15 / 50

15. The nucleus of protium consists of:

16 / 50

16. During electrolysis of acidified water, the ratio of volumes of hydrogen and oxygen obtained is:

17 / 50

17. Which of the following acids should NOT be used for preparing hydrogen gas in the laboratory?

18 / 50

18. The high boiling point of water is mainly due to:

19 / 50

19. One of the key uses of hydrogen peroxide in the environmental sector is:

20 / 50

20. Hydrogen peroxide is commonly used in which type of reactions due to its oxidizing property?

21 / 50

21. Which of the following chemical equations represents a redox reaction?

22 / 50

22. The density of heavy water (D₂O) is approximately:

23 / 50

23. Which of the following reactions is an example of a double displacement reaction?

24 / 50

24. The type of bond present between the two oxygen atoms in hydrogen peroxide (H₂O₂) is:

25 / 50

25. What is the role of the electrolyte in a hydrogen fuel cell?

26 / 50

26. In medical tracer studies, heavy water (D₂O) is used to:

27 / 50

27. Which of the following correctly describes dihydrogen under normal conditions?

28 / 50

28. Heavy water (D₂O) differs from regular water (H₂O) in that:

29 / 50

29. Hydrogen gas is collected by:

30 / 50

30. The oxidizing nature of hydrogen peroxide is evident when it reacts with which of the following to form oxygen gas?

31 / 50

31. Water has a high boiling point compared to other molecules of similar size because:

32 / 50

32. Why are the reaction rates of deuterium compounds slower than those of protium compounds?

33 / 50

33. Which of the following reasons supports keeping hydrogen separate from all groups?

34 / 50

34. What is the density of dihydrogen gas at standard temperature and pressure (STP)?

35 / 50

35. One of the key reasons heavy water (D₂O) is used in nuclear reactors is that it:

36 / 50

36. Both hydrogen and alkali metals:

37 / 50

37. What is the primary difference between interstitial hydrides and ionic hydrides?

38 / 50

38. The water softening process that uses calcium carbonate (CaCO₃) for hardness removal is called:

39 / 50

39. Water’s role in the human body includes:

40 / 50

40. The half-life of tritium is approximately:

41 / 50

41. In water, each hydrogen bond is approximately:

42 / 50

42. What is the boiling point of hydrogen peroxide?

43 / 50

43. When hydrogen reacts with chlorine in the presence of sunlight, the main product is:

44 / 50

44. Hydrogen bonding in water contributes to which of the following properties?

45 / 50

45. Which of the following symbols represents deuterium correctly?

46 / 50

46. Hydrogen reacts with nitrogen to form ammonia in the presence of a catalyst. This process is called:

47 / 50

47. Which of the following properties of water can be attributed to hydrogen bonding?

48 / 50

48. One of the main challenges of hydrogen fuel cell technology is:

49 / 50

49. Water has the highest dielectric constant among all liquids because:

50 / 50

50. Calcium hydride (CaH₂) reacts with water to form:

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Practice Hydrogen MCQs
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Class 11 Chemistry — Chapter 9: Hydrogen Online Test

The Class 11 Chemistry: Chapter 9 — Hydrogen Online Test offers a collection of 343 MCQs designed to test your understanding of one of the most important and unique elements in the periodic table—Hydrogen. This test is free, aligned with CBSE/NCERT standards, and enables unlimited practice. With three difficulty levels, you can progressively challenge yourself, review your performance, and track your improvement.

Hydrogen is a key topic for various exams, including JEE, NEET, and other competitive tests. Whether you’re revising the basics or diving into the advanced applications of hydrogen in reactions and compounds, this page offers a structured, exam-style practice. You can take the test as a mock exam to sharpen your skills, identify weak areas, and improve your speed and accuracy. Every attempt gives you instant results, and passing Paper 3 earns you a certificate.

What is this Class 11 Chemistry: Hydrogen Online Test?

This page offers three comprehensive MCQ papers for Chapter 9: Hydrogen:

  • Paper 1 (Easy) — Foundation: 20 questions · 30 minutes · Pass 40% · Fixed question set
  • Paper 2 (Medium) — Intermediate: 30 questions · 45 minutes · Pass 50% · Randomized from a pool of 343 questions
  • Paper 3 (Hard) — Advanced Challenge: 50 questions · 75 minutes · Pass 70% · Randomized from the same pool + Certificate on pass

Note: Each paper is timed, auto-evaluated, and displays your results instantly. You can retake Paper 2 and Paper 3 for fresh questions and further practice.

Key Topics Covered in this Online Test

This test covers all important topics from Chapter 9: Hydrogen in Class 11 Chemistry. You will get practice on the following sub-topics:

  • Position of Hydrogen in the periodic table and its comparison with alkali metals and halogens
  • Isotopes of Hydrogen — Protium, Deuterium, Tritium
  • Preparation of Dihydrogen — Methods of hydrogen preparation (from water, hydrocarbons, etc.)
  • Properties of Dihydrogen — Physical and chemical properties, uses in industries
  • Hydrogen Peroxide — Preparation, properties, and applications in industries and everyday use
  • Hydrides — Types of hydrides (ionic, covalent, and metallic) and their properties
  • Water and Heavy Water — Properties, differences, and applications in nuclear reactors
  • Hydrogen as a Fuel — Fuel cells, combustion, and efficiency in energy production
  • Acid-Base Properties of Hydrogen Compounds — H2O, HCl, H2SO4, and other acids/bases
  • Hydrogenation Reactions — Hydrogenation of alkenes, importance in food industry (e.g., margarine)
  • Uses of Hydrogen — In fuel cells, rocket propulsion, and as a reducing agent in various reactions

To gain more understanding, you can explore additional MCQs for Hydrogen. in the full Class 11 Chemistry MCQ Question Bank.

How This Exam-Style Online Test Works

Quick Overview: Pick a paper → Answer MCQs within the given time → Submit → Get your score and review answers instantly.

What you’ll see during the test

  • MCQs: A set of 4 answer options per question (A, B, C, D).
  • Timer on top: Paper 1: 30 minutes, Paper 2: 45 minutes, Paper 3: 75 minutes.
  • Pagination: Usually, 10 questions per page (click through to continue).
  • Navigation: Use Next/Prev to move through questions or click directly using the question map.
  • View Result: After submission, click View Result to check your score, correctness, and missed questions.
  • Result Summary: Score %, correct/incorrect/unanswered count, answer-key, and the option to share results.
  • Restart: Click Restart Test for another attempt with randomized questions in Paper 2 & Paper 3.

Note: After completing the test, kindly share your feedback to improve the system.

Marking & Pass Criteria

  • Scoring: +1 for correct answers, 0 for incorrect answers (no negative marking).
  • Passing marks: Paper 1 — 40% • Paper 2 — 50% • Paper 3 — 70%.
  • Randomization: Paper 2 & Paper 3 will present new questions on each attempt, providing a fresh challenge. Paper 1 remains fixed.

Who can take this test?

  • CBSE Class 11 students revising Chapter 9 (Hydrogen) for exams.
  • Students seeking JEE/NEET foundation and building a strong understanding of basic chemistry concepts.
  • School learners who want extra practice with Hydrogen and related reactions.
  • Coaching students preparing for competitive exams like JEE and NEET.
  • Teachers / tutors who need ready-to-use test resources for student assessments.
  • Self-learners and homeschoolers aiming to revise and strengthen their understanding of Hydrogen.

Advantages of this Online Test

  • Real exam feel: Timed questions, instant feedback, and auto-submit to simulate exam conditions.
  • Step-up difficulty: Foundation → Intermediate → Challenge (+ certificate for Paper 3).
  • Unlimited attempts: Keep practicing until you’re confident, with randomized sets for Paper 2 & Paper 3.
  • Free access: Completely free with no hidden charges.

How this test helps you study better

  • Step 1 – Basic Check: Start with Paper 1 to test your initial understanding of Hydrogen.
  • Step 2 – Practice Concept: Move to Paper 2 to reinforce your learning and improve accuracy.
  • Step 3 – Challenge Yourself: Attempt Paper 3 to test your mastery and aim for the certificate.
  • Step 4 – Review Mistakes: Analyze your errors, revisit missed topics, and keep a log for improvement.

Important Notes (Read Before You Start)

  • Do not refresh or close the tab during the test.
  • Best experience: Use Chrome or Edge with a stable internet connection.
  • Allow cookies/local storage to save your progress.
  • Safety: The test is 100% free and contains no hidden fees.

More Practice for Class 11 Chemistry

After completing this online test, explore additional resources to enhance your Chemistry knowledge: Visit the Class 11 Chemistry MCQ Collection for more practice questions across all chapters.

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