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

2 / 30

2. Water can form hydrogen bonds because it is a polar molecule. This means that:

3 / 30

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

4 / 30

4. In the ion exchange method, which ion typically replaces calcium and magnesium ions in the water?

5 / 30

5. Which physical property of hydrogen isotopes is different?

6 / 30

6. The structure of a water molecule (H₂O) is best described as:

7 / 30

7. Water is a polar molecule because:

8 / 30

8. The most common method for storing hydrogen is:

9 / 30

9. Which of the following metals forms interstitial hydrides?

10 / 30

10. Hydrogen chloride (HCl) is an example of a:

11 / 30

11. Protium combines with oxygen to form:

12 / 30

12. In oxyhydrogen welding, hydrogen is used because:

13 / 30

13. Hydrogen resembles halogens in which of the following reactions?

14 / 30

14. The structure of hydrogen peroxide differs from that of water (H₂O) mainly because:

15 / 30

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

16 / 30

16. Which statement about tritium is true?

17 / 30

17. Which of the following halogens reacts most vigorously with hydrogen?

18 / 30

18. The electronic configuration of hydrogen is:

19 / 30

19. Which of the following best describes the effect of heavy water on biological systems?

20 / 30

20. Hydrogen fuel can be used to power vehicles because it:

21 / 30

21. In what way does hydrogen resemble halogens?

22 / 30

22. Hydrogen reacts with unsaturated hydrocarbons in the presence of catalysts like Ni or Pt to produce:

23 / 30

23. Which industrial method is commonly used for large-scale production of hydrogen peroxide?

24 / 30

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

25 / 30

25. One of the key concerns with the long-term storage of hydrogen is:

26 / 30

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

27 / 30

27. Which of the following is an undesirable effect of hard water in domestic use?

28 / 30

28. What is the boiling point of hydrogen peroxide?

29 / 30

29. What is the bonding characteristic of metallic hydrides such as TiH₂ and PdH₂?

30 / 30

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

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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. Which of the following is a major use of hydrogen peroxide in the cosmetic industry?

2 / 50

2. Which of the following reactions is used in the Bosch process to convert carbon monoxide into methane?

3 / 50

3. Which of the following metals forms a metallic hydride that is used in hydrogen storage?

4 / 50

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

5 / 50

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

6 / 50

6. In the laboratory, dihydrogen gas is most commonly prepared by the reaction of:

7 / 50

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

8 / 50

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

9 / 50

9. The structure of hydrogen peroxide (H₂O₂) is best described as:

10 / 50

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

11 / 50

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

12 / 50

12. In which of the following applications is hydrogen peroxide used in the textile industry?

13 / 50

13. One of the challenges of using hydrogen as a fuel is that it:

14 / 50

14. In the structure of hydrogen peroxide, the lone pairs of electrons on the oxygen atoms:

15 / 50

15. Which of the following is an example of a displacement reaction?

16 / 50

16. Which of the following gases is often mixed with hydrogen during transportation to improve its handling and storage?

17 / 50

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

18 / 50

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

19 / 50

19. Which of the following is a key role of water in photosynthesis?

20 / 50

20. Which physical property of hydrogen isotopes is different?

21 / 50

21. The nucleus of protium consists of:

22 / 50

22. Which statement is true about protium ()?

23 / 50

23. In the Bosch process, what role does the catalyst play?

24 / 50

24. The hydrogen atoms in interstitial hydrides are typically in the form of:

25 / 50

25. Which statement correctly describes the bond nature in hydrogen and halogen molecules?

26 / 50

26. Which of the following reactions is an example of a disproportionation reaction?

27 / 50

27. Hydrogen is used in the synthesis of ammonia through:

28 / 50

28. Hydrogen is used in the synthesis of which of the following key industrial chemicals?

29 / 50

29. Hydrogen fuel is considered a renewable energy source when it is produced by:

30 / 50

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

31 / 50

31. The efficiency of a hydrogen fuel cell is primarily determined by:

32 / 50

32. In tracer studies, why is heavy water (D₂O) preferred over regular water (H₂O)?

33 / 50

33. The oxidation state of each oxygen atom in hydrogen peroxide (H₂O₂) is:

34 / 50

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

35 / 50

35. The heat of vaporization of water is relatively high because:

36 / 50

36. In the electrolysis of water, hydrogen is liberated at:

37 / 50

37. Which of the following statements is true about the boiling points of covalent hydrides?

38 / 50

38. Which of the following properties does hydrogen share with alkali metals in aqueous solutions?

39 / 50

39. Why does water expand when it freezes?

40 / 50

40. What is the main disadvantage of electrolysis of water for large-scale hydrogen production?

41 / 50

41. Which metal is commonly used in the formation of metallic hydrides for hydrogen storage applications?

42 / 50

42. Metallic hydrides like TiH₂ and PdH₂ are mainly used in which of the following applications?

43 / 50

43. Why is zinc preferred over other metals like iron or magnesium in laboratory hydrogen preparation?

44 / 50

44. Which of the following statements is correct regarding the diffusibility of dihydrogen?

45 / 50

45. Water is essential for life on Earth because it:

46 / 50

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

47 / 50

47. What is the relative atomic mass of protium?

48 / 50

48. Temporary hardness of water is mainly caused by:

49 / 50

49. Both hydrogen and alkali metals:

50 / 50

50. What is the primary feedstock for the Bosch process in industrial hydrogen production?

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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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