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 which of the following reactions does hydrogen peroxide act as an oxidizing agent?

2 / 30

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

3 / 30

3. Heavy water (D₂O) is used in nuclear reactors because it allows for the use of:

4 / 30

4. Hydrogen peroxide is used in medicine for:

5 / 30

5. What is added to water during electrolysis to increase its conductivity?

6 / 30

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

7 / 30

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

8 / 30

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

9 / 30

9. Which of the following metals forms interstitial hydrides?

10 / 30

10. How many neutrons are present in tritium?

11 / 30

11. In which of the following reactions does hydrogen peroxide act as a reducing agent?

12 / 30

12. Why do reactions involving deuterium occur more slowly than those with protium?

13 / 30

13. Why does hydrogen occupy a unique position in the periodic table?

14 / 30

14. Which of the following is the most abundant isotope of hydrogen?

15 / 30

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

16 / 30

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

17 / 30

17. Which of the following is a characteristic property of interstitial hydrides?

18 / 30

18. The central atoms in the structure of hydrogen peroxide (H₂O₂) are:

19 / 30

19. The mass number of protium is:

20 / 30

20. The nucleus of protium consists of:

21 / 30

21. Which covalent hydride is most likely to exhibit a tetrahedral geometry?

22 / 30

22. The electrode reactions during electrolysis of water can be represented as:

23 / 30

23. The water-gas shift reaction is important in the production of:

24 / 30

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

25 / 30

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

26 / 30

26. Heavy water differs from ordinary water because:

27 / 30

27. In hydrogen peroxide, each oxygen atom is bonded to:

28 / 30

28. Which of the following methods is used to remove permanent hardness from water?

29 / 30

29. Hydrogen bonding in water occurs between:

30 / 30

30. Which of the following symbols represents deuterium correctly?

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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 hydrogen isotopes is radioactive?

2 / 50

2. In the reaction of hydrogen peroxide with potassium iodide (KI), what is the role of hydrogen peroxide?

3 / 50

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

4 / 50

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

5 / 50

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

6 / 50

6. Which of the following is a property of metallic hydrides like TiH₂ and PdH₂?

7 / 50

7. The electronic structure of hydrogen peroxide (H₂O₂) suggests that:

8 / 50

8. Which of the following chemical reactions is an example of a decomposition reaction?

9 / 50

9. The nucleus of deuterium contains:

10 / 50

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

11 / 50

11. Hydrogen fuel has the potential to reduce greenhouse gas emissions primarily because it:

12 / 50

12. What is the most abundant element in the universe?

13 / 50

13. Which compound of hydrogen is similar to hydrogen halides in structure?

14 / 50

14. The water-gas shift reaction can be performed in two stages:

15 / 50

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

16 / 50

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

17 / 50

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

18 / 50

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

19 / 50

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

20 / 50

20. Which property of isotopes makes them useful in research and medical fields?

21 / 50

21. The boiling point of dihydrogen is approximately:

22 / 50

22. Tritium can be artificially produced by:

23 / 50

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

24 / 50

24. The nucleus of protium consists of:

25 / 50

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

26 / 50

26. A key advantage of using metal hydrides for hydrogen storage is:

27 / 50

27. Hydrogen and alkali metals both:

28 / 50

28. In which of the following reactions does hydrogen peroxide act as a reducing agent?

29 / 50

29. The byproducts of a hydrogen fuel cell are:

30 / 50

30. Which of the following best describes tritium’s role in nuclear fusion?

31 / 50

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

32 / 50

32. Water is a polar molecule because:

33 / 50

33. The molecular formula of heavy hydrogen gas is:

34 / 50

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

35 / 50

35. Interstitial hydrides such as TiH₂ are most commonly used in:

36 / 50

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

37 / 50

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

38 / 50

38. Water is involved in which of the following biological processes?

39 / 50

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

40 / 50

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

41 / 50

41. The boiling point of heavy water () compared to ordinary water () is:

42 / 50

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

43 / 50

43. The production of heavy water (D₂O) is most commonly carried out using:

44 / 50

44. Palladium hydride (PdH₂) is unique because:

45 / 50

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

46 / 50

46. What is the molecular geometry of water (H₂O)?

47 / 50

47. Which isotope of hydrogen is used as a tracer in biochemical and environmental studies?

48 / 50

48. One of the uses of heavy water (D₂O) in tracer studies is to:

49 / 50

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

50 / 50

50. What is the primary challenge associated with the transportation of hydrogen gas?

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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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