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 statements about deuterium is true?

2 / 30

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

3 / 30

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

4 / 30

4. Which form of hydrogen is most stable under normal conditions?

5 / 30

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

6 / 30

6. What is the appearance of concentrated hydrogen peroxide (over 30%)?

7 / 30

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

8 / 30

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

9 / 30

9. The freezing point of heavy water (D₂O) is:

10 / 30

10. Hydrogen bonding in water occurs between:

11 / 30

11. During electrolysis of acidified water, the ratio of volumes of hydrogen and oxygen obtained is:

12 / 30

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

13 / 30

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

14 / 30

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

15 / 30

15. Which of the following symbols represents deuterium correctly?

16 / 30

16. Which statement best explains hydrogen’s intermediate nature?

17 / 30

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

18 / 30

18. The bonding in ammonia (NH₃) is:

19 / 30

19. The melting point of dihydrogen is approximately:

20 / 30

20. Hydrogen peroxide (H₂O₂) is a:

21 / 30

21. What is the most accepted position of hydrogen in the modern periodic table?

22 / 30

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

23 / 30

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

24 / 30

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

25 / 30

25. Hydrogen resembles halogens because it:

26 / 30

26. Which of the following is a characteristic property of covalent hydrides like methane (CH₄), ammonia (NH₃), and water (H₂O)?

27 / 30

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

28 / 30

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

29 / 30

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

30 / 30

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

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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. Hydrogen is placed separately in the periodic table because:

2 / 50

2. Why is hydrogen sometimes grouped with alkali metals in periodic table discussions?

3 / 50

3. Which of the following metals reacts with hydrogen to form ionic hydrides?

4 / 50

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

5 / 50

5. Which statement best explains hydrogen’s intermediate nature?

6 / 50

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

7 / 50

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

8 / 50

8. Heavy water is commonly used in:

9 / 50

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

10 / 50

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

11 / 50

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

12 / 50

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

13 / 50

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

14 / 50

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

15 / 50

15. In oxyhydrogen welding, hydrogen is used because:

16 / 50

16. In the industrial production of hydrogen, what is the main product of the coal gasification process?

17 / 50

17. The byproducts of a hydrogen fuel cell are:

18 / 50

18. In the water-gas shift reaction, carbon monoxide reacts with water to produce:

19 / 50

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

20 / 50

20. Which industrial method is most commonly used to produce hydrogen from natural gas?

21 / 50

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

22 / 50

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

23 / 50

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

24 / 50

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

25 / 50

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

26 / 50

26. Hydrogen gas is collected by:

27 / 50

27. The density of water is highest at:

28 / 50

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

29 / 50

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

30 / 50

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

31 / 50

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

32 / 50

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

33 / 50

33. Water’s ability to act as a solvent is crucial for:

34 / 50

34. Hydrogen is used in the synthesis of which of the following key industrial chemicals?

35 / 50

35. The water cycle is responsible for:

36 / 50

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

37 / 50

37. The oxidizing nature of hydrogen peroxide is evident when it reacts with which of the following to form oxygen gas?

38 / 50

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

39 / 50

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

40 / 50

40. Both hydrogen and halogens:

41 / 50

41. Water treated by the ion exchange method is known as:

42 / 50

42. A major environmental advantage of using hydrogen as fuel is that it:

43 / 50

43. In the electrolysis of water, what is the product formed at the cathode?

44 / 50

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

45 / 50

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

46 / 50

46. One of the key advantages of using hydrogen as a fuel is that it:

47 / 50

47. Which of the following is a characteristic reaction of ionic hydrides like NaH with acids?

48 / 50

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

49 / 50

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

50 / 50

50. Dihydrogen gas is lighter than air because:

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Practice Hydrogen MCQs
Download Class 11 Chemistry MCQ Study Bundle

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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