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

2 / 30

2. The high heat of vaporization of water is due to:

3 / 30

3. Hydrogen shows similarity to alkali metals in which of the following reactions?

4 / 30

4. The byproducts of a hydrogen fuel cell are:

5 / 30

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

6 / 30

6. What is the relative atomic mass of protium?

7 / 30

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

8 / 30

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

9 / 30

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

10 / 30

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

11 / 30

11. Palladium hydride (PdH₂) is unique because:

12 / 30

12. Hydrogen peroxide is often used in the treatment of drinking water because it:

13 / 30

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

14 / 30

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

15 / 30

15. The molecular formula of heavy hydrogen gas is:

16 / 30

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

17 / 30

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

18 / 30

18. Which of the following correctly represents protium?

19 / 30

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

20 / 30

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

21 / 30

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

22 / 30

22. The water-gas shift reaction helps in removing which impurity from hydrogen gas?

23 / 30

23. Which of the following compounds is used in the removal of both temporary and permanent hardness from water?

24 / 30

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

25 / 30

25. Which of the following statements about hydrogen is correct?

26 / 30

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

27 / 30

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

28 / 30

28. Which of the following statements correctly describes the isotopes of hydrogen?

29 / 30

29. What is the percentage abundance of deuterium in natural hydrogen?

30 / 30

30. What is the main industrial use of hydrogen?

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

2 / 50

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

3 / 50

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

4 / 50

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

5 / 50

5. The water-gas shift reaction is typically catalyzed by:

6 / 50

6. Why does hydrogen resemble alkali metals in terms of oxidation number?

7 / 50

7. The Bosch process is used to:

8 / 50

8. Which of the following is true about palladium hydride (PdH₂)?

9 / 50

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

10 / 50

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

11 / 50

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

12 / 50

12. How is hydrogen peroxide prepared in the laboratory?

13 / 50

13. Hydrogen peroxide decomposes into oxygen and water when:

14 / 50

14. Which of the following materials is commonly used for the construction of high-pressure hydrogen storage tanks?

15 / 50

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

16 / 50

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

17 / 50

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

18 / 50

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

19 / 50

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

20 / 50

20. Why does water expand when it freezes?

21 / 50

21. Which of the following compounds is an example of a covalent hydride?

22 / 50

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

23 / 50

23. Hydrogen differs from halogens because:

24 / 50

24. Which of the following reactions is used in the water-gas shift reaction to produce additional hydrogen?

25 / 50

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

26 / 50

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

27 / 50

27. Ionic hydrides, such as sodium hydride (NaH) and calcium hydride (CaH₂), are characterized by:

28 / 50

28. The primary use of interstitial hydrides, such as TiH₂, is:

29 / 50

29. Tritium undergoes radioactive decay to form which element?

30 / 50

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

31 / 50

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

32 / 50

32. What is the main difference between hydrogen and alkali metals despite their similarities?

33 / 50

33. Heavy water (D₂O) is commonly used in which type of nuclear reactor?

34 / 50

34. Which of the following represents the similarity in electron gain behavior of hydrogen and halogens?

35 / 50

35. Hydrogen peroxide acts as an oxidizing agent because it can:

36 / 50

36. Which catalyst is typically used in the Bosch process for hydrogen production from carbon monoxide and hydrogen?

37 / 50

37. Hydrogen peroxide is commonly used in the following application:

38 / 50

38. Protium forms a covalent bond in molecule by:

39 / 50

39. In water, each hydrogen bond is approximately:

40 / 50

40. What conclusion can be drawn about hydrogen’s classification?

41 / 50

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

42 / 50

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

43 / 50

43. Protium combines with oxygen to form:

44 / 50

44. The mass number of protium is:

45 / 50

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

46 / 50

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

47 / 50

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

48 / 50

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

49 / 50

49. The refractive index of water is approximately:

50 / 50

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

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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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