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. Hydrogen fuel can be used to power vehicles because it:

2 / 30

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

3 / 30

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

4 / 30

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

5 / 30

5. The molecular formula of heavy hydrogen gas is:

6 / 30

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

7 / 30

7. Which compound is formed when deuterium reacts with chlorine?

8 / 30

8. Titanium hydride (TiH₂) is an example of a:

9 / 30

9. Which of the following is a covalent hydride that exhibits hydrogen bonding?

10 / 30

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

11 / 30

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

12 / 30

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

13 / 30

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

14 / 30

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

15 / 30

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

16 / 30

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

17 / 30

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

18 / 30

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

19 / 30

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

20 / 30

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

21 / 30

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

22 / 30

22. Which of the following is a common method used to remove both temporary and permanent hardness from water?

23 / 30

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

24 / 30

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

25 / 30

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

26 / 30

26. Hydrogen peroxide is commonly used in which type of reactions due to its oxidizing property?

27 / 30

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

28 / 30

28. Why is tritium useful in self-luminous devices like watch dials and exit signs?

29 / 30

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

30 / 30

30. In what way does hydrogen resemble halogens?

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

2 / 50

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

3 / 50

3. What is the primary use of calcium hydride (CaH₂) in industry?

4 / 50

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

5 / 50

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

6 / 50

6. Hydrogen peroxide is used as a bleaching agent in the textile industry. What is the main reason for this?

7 / 50

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

8 / 50

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

9 / 50

9. In cryogenic hydrogen storage, hydrogen is stored as a:

10 / 50

10. The structure of sodium hydride (NaH) is similar to:

11 / 50

11. Which compound is formed when deuterium reacts with chlorine?

12 / 50

12. In water, each hydrogen bond is approximately:

13 / 50

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

14 / 50

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

15 / 50

15. The chemical properties of hydrogen isotopes are similar because:

16 / 50

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

17 / 50

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

18 / 50

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

19 / 50

19. Water is a polar molecule because:

20 / 50

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

21 / 50

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

22 / 50

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

23 / 50

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

24 / 50

24. Protium forms a covalent bond in molecule by:

25 / 50

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

26 / 50

26. Which of the following metals forms interstitial hydrides?

27 / 50

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

28 / 50

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

29 / 50

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

30 / 50

30. The oxidation state of each oxygen atom in hydrogen peroxide (H₂O₂) is:

31 / 50

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

32 / 50

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

33 / 50

33. Which of the following is the most abundant isotope of hydrogen?

34 / 50

34. Why is tritium useful in self-luminous devices like watch dials and exit signs?

35 / 50

35. The melting point of dihydrogen is approximately:

36 / 50

36. Temporary hardness of water is mainly caused by:

37 / 50

37. Protium combines with oxygen to form:

38 / 50

38. The oxygen atom in water (H₂O) has a partial negative charge because:

39 / 50

39. Which statement is true about protium ()?

40 / 50

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

41 / 50

41. The structure of hydrogen peroxide differs from that of water (H₂O) mainly because:

42 / 50

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

43 / 50

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

44 / 50

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

45 / 50

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

46 / 50

46. The critical temperature of dihydrogen is:

47 / 50

47. Hydrogen cannot be placed in any one group of the periodic table because:

48 / 50

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

49 / 50

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

50 / 50

50. The structure of a water molecule (H₂O) is best described as:

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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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