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 an advantage of using hydrogen as a fuel for transportation?

2 / 30

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

3 / 30

3. What makes water a polar molecule?

4 / 30

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

5 / 30

5. In which industry is hydrogen peroxide primarily used for bleaching purposes?

6 / 30

6. Which compound of hydrogen is analogous to sodium chloride in terms of ionic nature?

7 / 30

7. The reaction is an example of a:

8 / 30

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

9 / 30

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

10 / 30

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

11 / 30

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

12 / 30

12. In which form does hydrogen exist in the sun and stars?

13 / 30

13. The critical temperature of dihydrogen is:

14 / 30

14. Water’s high surface tension is mainly due to:

15 / 30

15. What is the main advantage of preparing hydrogen through electrolysis of water?

16 / 30

16. Which of the following is a benefit of using heavy water (D₂O) in tracer studies?

17 / 30

17. Which of the following correctly represents protium?

18 / 30

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

19 / 30

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

20 / 30

20. Water is known as the universal solvent because it:

21 / 30

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

22 / 30

22. How is hydrogen peroxide prepared in the laboratory?

23 / 30

23. What is the structure of interstitial hydrides like TiH₂?

24 / 30

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

25 / 30

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

26 / 30

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

27 / 30

27. In the industrial production of hydrogen, which method involves the reaction of natural gas with steam at high temperatures?

28 / 30

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

29 / 30

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

30 / 30

30. Hydrogen differs from halogens because:

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

2 / 50

2. Which of the following is an effective method to remove temporary hardness from water?

3 / 50

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

4 / 50

4. The nucleus of protium consists of:

5 / 50

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

6 / 50

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

7 / 50

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

8 / 50

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

9 / 50

9. In the industrial production of hydrogen, which method involves the reaction of natural gas with steam at high temperatures?

10 / 50

10. Hydrogen is used in the food industry for:

11 / 50

11. The density of water is highest at:

12 / 50

12. Which of the following is an example of a saline hydride?

13 / 50

13. Which statement is true about the flammability of dihydrogen gas?

14 / 50

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

15 / 50

15. The specific heat of dihydrogen gas is:

16 / 50

16. Which of the following symbols represents tritium correctly?

17 / 50

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

18 / 50

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

19 / 50

19. Hydrogen fuel cells are considered a promising solution for reducing carbon emissions in the transportation sector because:

20 / 50

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

21 / 50

21. The hydrogen bonding in water occurs between:

22 / 50

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

23 / 50

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

24 / 50

24. Hydrogen bonding in water occurs between:

25 / 50

25. The water cycle is responsible for:

26 / 50

26. Interstitial hydrides are typically formed with which type of metals?

27 / 50

27. Water plays a vital role in the climate system by:

28 / 50

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

29 / 50

29. Water has a high specific heat capacity, meaning it:

30 / 50

30. In the production of hydrogen, one of the key uses is for:

31 / 50

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

32 / 50

32. In the reaction , the role of manganese dioxide (MnO₂) is:

33 / 50

33. Which of the following equations is an example of a double displacement reaction?

34 / 50

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

35 / 50

35. Why is protium considered chemically more reactive than deuterium?

36 / 50

36. Which of the following laboratory methods is commonly used for preparing hydrogen gas?

37 / 50

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

38 / 50

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

39 / 50

39. What is the main use of hydrogen peroxide in the medical field?

40 / 50

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

41 / 50

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

42 / 50

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

43 / 50

43. The bonding in ammonia (NH₃) is:

44 / 50

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

45 / 50

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

46 / 50

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

47 / 50

47. Palladium hydride (PdH₂) is unique because:

48 / 50

48. The reaction is an example of a:

49 / 50

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

50 / 50

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

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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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