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

2 / 30

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

3 / 30

3. Hydrogen peroxide is used in medicine for:

4 / 30

4. The electronic configuration of hydrogen is:

5 / 30

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

6 / 30

6. Protium forms a covalent bond in molecule by:

7 / 30

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

8 / 30

8. Hydrogen is used in the electronics industry primarily for:

9 / 30

9. The reaction is an example of a:

10 / 30

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

11 / 30

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

12 / 30

12. Hydrogen gas is collected by:

13 / 30

13. Heavy water differs from ordinary water because:

14 / 30

14. The water softening process that uses calcium carbonate (CaCO₃) for hardness removal is called:

15 / 30

15. Calcium hydride (CaH₂) reacts with water to form:

16 / 30

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

17 / 30

17. In the electrolysis of water, hydrogen is liberated at:

18 / 30

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

19 / 30

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

20 / 30

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

21 / 30

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

22 / 30

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

23 / 30

23. Which statement about tritium is true?

24 / 30

24. Heavy water (D₂O) is used in biological research because:

25 / 30

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

26 / 30

26. Which of the following properties does hydrogen share with alkali metals in aqueous solutions?

27 / 30

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

28 / 30

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

29 / 30

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

30 / 30

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

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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 hydrogen isotopes is radioactive?

2 / 50

2. Hydrogen peroxide decomposes into oxygen and water when:

3 / 50

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

4 / 50

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

5 / 50

5. Which of the following statements about halogen and hydrogen reactivity is correct?

6 / 50

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

7 / 50

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

8 / 50

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

9 / 50

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

10 / 50

10. The half-life of tritium is approximately:

11 / 50

11. In nature, tritium is formed mainly by:

12 / 50

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

13 / 50

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

14 / 50

14. Hydrogen fuel cells are advantageous because they:

15 / 50

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

16 / 50

16. The reason why water is considered a universal solvent is due to:

17 / 50

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

18 / 50

18. Which statement is true about protium ()?

19 / 50

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

20 / 50

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

21 / 50

21. Permanent hardness of water is caused by:

22 / 50

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

23 / 50

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

24 / 50

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

25 / 50

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

26 / 50

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

27 / 50

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

28 / 50

28. Interstitial hydrides such as TiH₂ are most commonly used in:

29 / 50

29. One of the uses of heavy water (D₂O) in tracer studies is to:

30 / 50

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

31 / 50

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

32 / 50

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

33 / 50

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

34 / 50

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

35 / 50

35. In the electrolysis of water, hydrogen is liberated at:

36 / 50

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

37 / 50

37. What is the density of dihydrogen gas at standard temperature and pressure (STP)?

38 / 50

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

39 / 50

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

40 / 50

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

41 / 50

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

42 / 50

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

43 / 50

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

44 / 50

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

45 / 50

45. Which of the following represents the similarity in electron gain behavior of hydrogen and halogens?

46 / 50

46. Which covalent hydride is most likely to exhibit a tetrahedral geometry?

47 / 50

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

48 / 50

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

49 / 50

49. What is the chemical formula of hydrogen peroxide?

50 / 50

50. Which of the following is a characteristic feature of a redox reaction?

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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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