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 a reducing agent?

2 / 30

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

3 / 30

3. Temporary hardness of water is mainly caused by:

4 / 30

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

5 / 30

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

6 / 30

6. Which of the following statements best describes the electronic configuration similarity between hydrogen and alkali metals?

7 / 30

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

8 / 30

8. The bond angle in hydrogen peroxide (H₂O₂) is approximately:

9 / 30

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

10 / 30

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

11 / 30

11. Hydrogen peroxide is used in medicine for:

12 / 30

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

13 / 30

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

14 / 30

14. Interstitial hydrides are formed when:

15 / 30

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

16 / 30

16. The molecular formula of heavy hydrogen gas is:

17 / 30

17. The bond angle in a water molecule (H₂O) is approximately:

18 / 30

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

19 / 30

19. The ability of water to dissolve many polar and ionic substances is mainly due to:

20 / 30

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

21 / 30

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

22 / 30

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

23 / 30

23. Which of the following reactions represents a displacement reaction?

24 / 30

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

25 / 30

25. Which of the following is an example of a redox reaction?

26 / 30

26. Which of the following is an advantage of using hydrogen fuel cells over traditional internal combustion engines?

27 / 30

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

28 / 30

28. In aquatic ecosystems, water helps support life by:

29 / 30

29. Which of the following hydrides is commonly used as a fuel for rockets?

30 / 30

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

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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 property of metallic hydrides like TiH₂ and PdH₂?

2 / 50

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

3 / 50

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

4 / 50

4. What is the relative atomic mass of protium?

5 / 50

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

6 / 50

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

7 / 50

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

8 / 50

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

9 / 50

9. Which of the following statements about tritium water () is correct?

10 / 50

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

11 / 50

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

12 / 50

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

13 / 50

13. Dihydrogen gas is lighter than air because:

14 / 50

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

15 / 50

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

16 / 50

16. In water, each hydrogen bond is approximately:

17 / 50

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

18 / 50

18. In the production of chemicals, hydrogen peroxide is used in the synthesis of:

19 / 50

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

20 / 50

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

21 / 50

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

22 / 50

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

23 / 50

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

24 / 50

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

25 / 50

25. Heavy water is commonly used in:

26 / 50

26. Heavy water differs from ordinary water because:

27 / 50

27. Which statement about tritium is true?

28 / 50

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

29 / 50

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

30 / 50

30. The equation is an example of which type of reaction?

31 / 50

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

32 / 50

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

33 / 50

33. Why does water expand when it freezes?

34 / 50

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

35 / 50

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

36 / 50

36. Hydrogen peroxide (H₂O₂) is a:

37 / 50

37. Hydrogen differs from alkali metals because:

38 / 50

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

39 / 50

39. Which of the following is a disadvantage of storing hydrogen as a liquid?

40 / 50

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

41 / 50

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

42 / 50

42. Tritium can be artificially produced by:

43 / 50

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

44 / 50

44. The reaction is an example of a:

45 / 50

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

46 / 50

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

47 / 50

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

48 / 50

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

49 / 50

49. The molecular formula of heavy hydrogen gas is:

50 / 50

50. Water is essential in the nitrogen cycle because it:

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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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