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 main industrial use of hydrogen?

2 / 30

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

3 / 30

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

4 / 30

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

5 / 30

5. Hydrogen differs from halogens because:

6 / 30

6. Which of the following chemical equations represents a redox reaction?

7 / 30

7. Why are the reaction rates of deuterium compounds slower than those of protium compounds?

8 / 30

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

9 / 30

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

10 / 30

10. Which of the following is a common industrial method for producing hydrogen?

11 / 30

11. Hydrogen peroxide is used in medicine for:

12 / 30

12. Which statement about tritium is true?

13 / 30

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

14 / 30

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

15 / 30

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

16 / 30

16. Which isotope of hydrogen does NOT contain any neutron?

17 / 30

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

18 / 30

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

19 / 30

19. What is the chemical formula of hydrogen peroxide?

20 / 30

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

21 / 30

21. Which hydrogen isotope is used in nuclear fusion reactions to produce energy?

22 / 30

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

23 / 30

23. Hydrogen peroxide decomposes into oxygen and water when:

24 / 30

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

25 / 30

25. Water’s role in the human body includes:

26 / 30

26. In water, each hydrogen bond is approximately:

27 / 30

27. The decomposition of hydrogen peroxide is catalyzed by which of the following substances?

28 / 30

28. What is the key difference between hydrogen and halogens despite their resemblance?

29 / 30

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

30 / 30

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

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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 reactions is an example of a double displacement reaction?

2 / 50

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

3 / 50

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

4 / 50

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

5 / 50

5. Hydrogen resembles halogens because it:

6 / 50

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

7 / 50

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

8 / 50

8. Heavy water is commonly used in:

9 / 50

9. Water’s high surface tension is primarily due to:

10 / 50

10. The phenomenon that causes water to "climb" up a plant stem against gravity is called:

11 / 50

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

12 / 50

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

13 / 50

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

14 / 50

14. Why are the reaction rates of deuterium compounds slower than those of protium compounds?

15 / 50

15. Tritium can be artificially produced by:

16 / 50

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

17 / 50

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

18 / 50

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

19 / 50

19. Which of the following is a characteristic feature of metallic hydrides like PdH₂ and TiH₂?

20 / 50

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

21 / 50

21. Permanent hardness of water is caused by:

22 / 50

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

23 / 50

23. Hydrogen peroxide decomposes into oxygen and water when:

24 / 50

24. The water cycle is responsible for:

25 / 50

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

26 / 50

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

27 / 50

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

28 / 50

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

29 / 50

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

30 / 50

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

31 / 50

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

32 / 50

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

33 / 50

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

34 / 50

34. What is the key difference between hydrogen and halogens despite their resemblance?

35 / 50

35. What is the chemical formula of hydrogen peroxide?

36 / 50

36. Why does water expand when it freezes?

37 / 50

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

38 / 50

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

39 / 50

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

40 / 50

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

41 / 50

41. Temporary hardness of water is mainly caused by:

42 / 50

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

43 / 50

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

44 / 50

44. Hydrogen fuel cells can be used in which of the following applications?

45 / 50

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

46 / 50

46. In nuclear reactors, what is the primary role of a moderator like heavy water (D₂O)?

47 / 50

47. In the structure of ionic hydrides like NaH and CaH₂, the hydride ion () acts as:

48 / 50

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

49 / 50

49. One of the key reasons heavy water (D₂O) is used in nuclear reactors is that it:

50 / 50

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

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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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