Exam-Style Online Test | 11 Chemistry: P-Block Elements
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Class 11 Chemistry — Chapter 11: P-Block Elements Online Test

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Class 11 Chemistry: P-Block Elements 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

Good luck! 👍

1 / 20

1. The reaction of elemental Silicon () with aqueous produces gas, but is unreactive toward dilute . This contrasting reactivity implies that is a substance with which characteristic chemical property?

2 / 20

2. The chemical equation describes the etching of glass (silica). In this reaction, the role of is unique because:

3 / 20

3. The ratio in a zeolite affects its properties. A higher ratio (e.g., vs. ):

4 / 20

4. Industrial production of is often a major byproduct of which large-scale chemical process involving calcium carbonate ()?

5 / 20

5. Single-walled carbon nanotubes (SWCNTs) are often bundled together into ropes. The individual tubes within a rope are held together by:

6 / 20

6. What is the total number of covalent bonds (single and double) present in the molecule?

7 / 20

7. Which statement is true regarding the acidity/hydrolysis of the oxides of Carbon and Silicon in the presence of strong base?

8 / 20

8. In the triple bond, how many bonds are present?

9 / 20

9. Which mineral is the most abundant compound of Silicon on the Earth's crust?

10 / 20

10. The chemical name of Borax () is:

11 / 20

11. Kernite (or Rasorite) is the second most important ore of boron. What is its chemical formula?

12 / 20

12. The first element of each p-block group shows anomalous behavior. This is primarily due to:

13 / 20

13. The first ionization enthalpy () of Group 13 elements shows a complex trend. What is the correct order?

14 / 20

14. The bond length in (130 pm) is shorter than expected for a single bond. This is attributed to:

15 / 20

15. The bridge bond angle () in diborane is approximately:

16 / 20

16. When reacts with a Lewis base such as ammonia (), what is the term for the resulting product?

17 / 20

17. The ionization enthalpy () generally decreases down a group. For Group 14, which element exhibits a slight increase in the first ionization enthalpy compared to the element immediately preceding it?

18 / 20

18. The stability of double bonds over single bonds is quantified by the difference in their bond enthalpies. For , the average bond enthalpy of is approximately:

19 / 20

19. How does the stability of multiple bonds compare to that of hypothetical multiple bonds?

20 / 20

20. The discovery of Buckminsterfullerene () in 1985 led to the awarding of the Nobel Prize in Chemistry in 1996 to which trio of scientists?

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Class 11 Chemistry: P-Block Elements 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. Zeolites are used as sorbents (adsorbents) for gases. Their effectiveness as sorbents is due to their large:

2 / 30

2. Which element in Group 13 almost exclusively shows a +3 oxidation state in its compounds?

3 / 30

3. What gives diamond its exceptional brilliance and sparkle (high lustre)?

4 / 30

4. Which property of Carbon Dioxide makes it an effective agent in fire extinguishers?

5 / 30

5. Which of the following elements has the ground state valence shell electronic configuration ?

6 / 30

6. What structural feature allows graphene to be an exceptionally good conductor of electricity?

7 / 30

7. Multi-walled carbon nanotubes (MWCNTs) consist of several concentric tubes. The distance between these concentric walls is closest to the interlayer spacing found in:

8 / 30

8. In the triple bond, how many bonds are present?

9 / 30

9. is the most stable and common fullerene molecule. Its structure closely resembles a soccer ball. What is the common name given to this specific allotrope?

10 / 30

10. Boron is the only element in Group 13 that:

11 / 30

11. Orthoboric acid () can be prepared by treating Borax () with:

12 / 30

12. Due to its inability to form stable bonds, Silicon is prone to reacting with nucleophiles like water. This reaction is called:

13 / 30

13. Carbon, the first element of Group 14, is known to form extended chains and rings through self-linking. What is this property called?

14 / 30

14. Which of the following compounds is the strongest reducing agent?

15 / 30

15. Fullerenes are typically soluble in organic solvents, exhibiting a distinctive color. What is the color of the solution in solvents like toluene or benzene?

16 / 30

16. How does the density of graphite compare to that of diamond, and what is the structural reason for the difference?

17 / 30

17. Feldspars and Zeolites are examples of which major class of silicates, characterized by a three-dimensional interlocking structure?

18 / 30

18. Which of the following compounds is the most stable in the +2 oxidation state?

19 / 30

19. What is the general valence shell electronic configuration for the p-block elements?

20 / 30

20. Which of the following sets of elements constitutes the Group 14 (Carbon family)?

21 / 30

21. In a Sheet Silicate (Phyllosilicate), what is the resulting formula for the silicate anion?

22 / 30

22. What is the combined state of carbon that is the main constituent of marble, chalk, and limestone?

23 / 30

23. What is the hybridization of the Boron atom in diborane ()?

24 / 30

24. Although is highly unreactive, it is attacked by concentrated hot sodium hydroxide (). The products of this reaction are:

25 / 30

25. Graphite is used as a moderator in nuclear reactors. This is due to its ability to:

26 / 30

26. Graphene is structurally best described as:

27 / 30

27. The use of zeolites as catalysts is primarily based on the principle of 'shape-selective catalysis'. This means the catalytic reaction is dependent on:

28 / 30

28. Orthosilicates (or Nesosilicates) are characterized by which structural feature?

29 / 30

29. To produce a highly rigid, three-dimensional (cross-linked) silicone polymer rather than a linear chain, which monomer must be incorporated along with ?

30 / 30

30. Which statement accurately compares the hydrolysis of the tetrachlorides of Carbon and Silicon?

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Class 11 Chemistry: P-Block Elements 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!

Earn a certificate upon passing

Get new questions with every attempt

  • Total Questions: 50
  • Time Allotted: 75 minutes
  • Passing Score: 70%
  • Randomization: Yes
  • Certificate: Yes
  • Retake: Allowed
  • Price: 100% Free

Good luck! 👍

1 / 50

1. In the class of silicates known as Tectosilicates (Framework Silicates), what fraction of the oxygen atoms are shared by each tetrahedron with its neighbors?

2 / 50

2. Which mineral is the most abundant compound of Silicon on the Earth's crust?

3 / 50

3. Boron is the only element in Group 13 that:

4 / 50

4. What is the hybridization of the carbon atoms within the layers of the graphite structure?

5 / 50

5. The stability of double bonds is primarily a result of Carbon's:

6 / 50

6. The first ionization enthalpy () of Group 13 elements shows a complex trend. What is the correct order?

7 / 50

7. Which element in Group 13 is a non-metal, while the others are metals?

8 / 50

8. Orthoboric acid acts as a weak acid in water, but it is unique because it is not a proton donor. Instead, it acts as a Lewis acid by:

9 / 50

9. How does the stability of multiple bonds compare to that of hypothetical multiple bonds?

10 / 50

10. Kernite (or Rasorite) is the second most important ore of boron. What is its chemical formula?

11 / 50

11. Which reaction type is used to prepare the monomer (dialkyldichlorosilane) from elemental silicon and alkyl halide () in the presence of copper powder as a catalyst (Rochow Process)?

12 / 50

12. When water is added to calcium carbide (), the products are calcium hydroxide () and acetylene gas (). This reaction is specifically classified as:

13 / 50

13. The Pyrosilicate (or Sorosilicate) structure is formed when two tetrahedra share how many oxygen atom(s) at one corner?

14 / 50

14. In the Water Gas Shift reaction: , how does the oxidation state of Carbon change?

15 / 50

15. If the only monomer used in the preparation process is (Trialkylchlorosilane), what type of product will be formed?

16 / 50

16. Which statement accurately compares the hydrolysis of the tetrachlorides of Carbon and Silicon?

17 / 50

17. To produce a highly rigid, three-dimensional (cross-linked) silicone polymer rather than a linear chain, which monomer must be incorporated along with ?

18 / 50

18. The smallest stable cyclic alkane that exhibits planar geometry is:

19 / 50

19. Due to the inert pair effect, which oxidation state becomes more stable for the heavier elements of Group 14?

20 / 50

20. Silicones are noted for their high thermal stability compared to most carbon-based organic polymers. This is attributed to the strength of the:

21 / 50

21. What structural feature allows graphene to be an exceptionally good conductor of electricity?

22 / 50

22. In which direction is the electrical conductivity of graphite most efficient?

23 / 50

23. What is the correct trend for electronegativity (EN) down Group 13?

24 / 50

24. Which of the following elements has the ground state valence shell electronic configuration ?

25 / 50

25. When reacts with a Lewis base such as ammonia (), what is the term for the resulting product?

26 / 50

26. While Carbon forms long stable chains with itself, Silicon catenation is often observed in chains where the Silicon atoms are separated by which bridging atom?

27 / 50

27. What is the correct order of atomic radii for Group 13 elements?

28 / 50

28. When Borax is heated strongly, it loses water of crystallization and swells up. On further heating, it turns into a transparent, glassy mass known as:

29 / 50

29. Carbon, the first element of Group 14, is known to form extended chains and rings through self-linking. What is this property called?

30 / 50

30. What is the most characteristic and common oxidation state shown by all elements in Group 14?

31 / 50

31. In the excited state, an element with the general configuration promotes an electron to achieve a valency of 4. What is the resulting hybridization in a simple tetravalent compound like ?

32 / 50

32. When hydrated aluminium chloride, , is heated strongly in air, what is the major stable solid product formed?

33 / 50

33. Silicones are synthetic organosilicon polymers characterized by which repeating structural unit?

34 / 50

34. Which statement is true regarding the acidity/hydrolysis of the oxides of Carbon and Silicon in the presence of strong base?

35 / 50

35. Which factor is the primary determinant of the extent of catenation for an element?

36 / 50

36. The largest sink for anthropogenic is currently the world's oceans. What is the chemical consequence of the ocean absorbing large amounts of ?

37 / 50

37. The vast majority of organic compounds are based on Carbon chains and rings. What is the geometry of the Carbon atoms in a simple saturated linear chain, such as an -alkane?

38 / 50

38. In the Friedel-Crafts alkylation reaction, which species is created when the Lewis acid reacts with the alkyl halide ()?

39 / 50

39. What is the total number of covalent bonds (single and double) present in the molecule?

40 / 50

40. Boron trihalides (like ) act as Lewis acids. This is primarily because:

41 / 50

41. The bridge bond angle () in diborane is approximately:

42 / 50

42. The reaction used in the synthesis of silicone polymers, where groups react to form bonds while eliminating water (), is an example of:

43 / 50

43. What is the specific geometry surrounding each carbon atom in the diamond lattice?

44 / 50

44. The chemical equation describes the etching of glass (silica). In this reaction, the role of is unique because:

45 / 50

45. Carbon Monoxide is classified as a Lewis base because:

46 / 50

46. Why does Lead () show virtually no catenation?

47 / 50

47. What is the "inert pair effect"?

48 / 50

48. Graphene exhibits a unique phenomenon where electrons behave as if they have no mass (known as massless Dirac fermions). This is responsible for which of its extreme properties?

49 / 50

49. In the structure of diborane (), how many (two-center, two-electron) terminal bonds are present?

50 / 50

50. The p-block elements are unique because their members include:

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Practice P-Block Elements MCQs
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Class 11 Chemistry — Chapter 11: P-Block Elements Online Test

The Class 11 Chemistry: Chapter 11 – P-Block Elements Online Test offers an extensive collection of 277 MCQs designed to deepen your understanding of p-block elements and their properties. This test is free, NCERT/CBSE-aligned, and lets you practice at your own pace with unlimited attempts. Whether you’re aiming for a quick revision or preparing for exams like JEE or NEET, this test is an ideal resource to evaluate your knowledge.

This page acts as a mini online mock test for Chapter 11. You can practice multiple-choice questions (MCQs) and instantly see your results along with detailed explanations. Think of it as a real exam simulation that helps you boost your confidence before the actual test. This test is also great for those who wish to strengthen their knowledge of p-block elements, their chemical properties, and trends in the periodic table.

What is this Chapter 11: P-Block Elements Online Test?

This test consists of three exam-style MCQ papers for Chapter 11: P-Block Elements:

  • Paper 1 (Easy) — Foundation: 20 questions · 30 min · Pass 40% · Fixed set
  • Paper 2 (Medium) — Mixed: 30 questions · 45 min · Pass 50% · Randomized from a pool of 277 MCQs
  • Paper 3 (Hard) — Challenge: 50 questions · 75 min · Pass 70% · Randomized from the same pool + Certificate on pass

Note: Each attempt gives you fresh mixes of questions in Paper 2 and Paper 3, ensuring a unique experience each time.

Topics covered in these online tests

The online test will guide you through a wide range of essential topics from Chapter 11: P-Block Elements. The key concepts include:

  • General Properties of p-block elements — their physical and chemical properties, and trends in groups and periods.
  • Electronic Configuration of p-block elements and how it relates to their properties.
  • Oxidation States of p-block elements, including trends and exceptions.
  • Trends in Group 13 Elements — Boron and its compounds, Aluminum, Gallium, etc.
  • Trends in Group 14 Elements — Carbon, Silicon, Germanium, Tin, Lead and their allotropes.
  • Trends in Group 15 Elements — Nitrogen, Phosphorus, Arsenic, Antimony, and their important compounds.
  • Trends in Group 16 Elements — Oxygen, Sulfur, Selenium, Tellurium, and Polonium.
  • Trends in Group 17 Elements — Halogens and their physical and chemical properties.
  • Group 18 Elements — Noble gases, their properties, compounds like Xenon compounds, etc.
  • Allotropes of Elements — Oxygen, Phosphorus, and Sulfur (e.g., allotropes of Carbon and Sulfur).
  • Industrial Applications — The industrial use of p-block elements, including the extraction of metals, and their role in chemical reactions.
  • Environmental Impact — The effects of p-block elements and their compounds on the environment (e.g., nitrogen oxides, sulfur compounds).

If you want more practice on the s-block elements, you can also visit the online test for S-Block Elements.

How This Exam-Style Online Test Works

  • Pick a paper → Answer MCQs within time → Submit → Get instant score and result with answer review.
  • MCQs: Each paper contains randomized questions from a large question pool.
  • Timer: Paper 1 is for 30 minutes, Paper 2 is for 45 minutes, and Paper 3 is for 75 minutes.
  • View Results: Get your score and an immediate review with correct answers.
  • Retake: You can retake the test as many times as needed to improve your score.

What you’ll see during the test

  • MCQs: One question with four options (A, B, C, D).
  • Timer on top: P1: 30 min • P2: 45 min • P3: 75 min.
  • Pagination: Typically 10 questions per page, use Next/Prev to navigate.
  • Result Page: Instant result with correct/incorrect answers, detailed explanation, and the option to restart the test.

Marking & pass criteria

  • Scoring: +1 for correct, 0 for incorrect (no negative marking).
  • Passing marks: Paper 1 — 40% • Paper 2 — 50% • Paper 3 — 70%.
  • Randomization: Paper 2 & 3 shuffle questions from a large question pool; Paper 1 remains fixed.

Who can take this test?

  • Class 11 CBSE/NCERT students revising Chapter 11 on P-Block Elements.
  • JEE/NEET foundation aspirants building solid concepts in inorganic Chemistry.
  • Teachers and tutors using this as a practice tool for class assignments and quizzes.
  • Students from other boards and countries looking to practice P-Block Elements.
  • Students preparing for competitive exams seeking to solidify their knowledge of p-block elements.

Advantages of this online test

  • Real exam experience: Timed questions, instant feedback, and clear performance analysis.
  • Step-up difficulty: Foundation → Mixed → Challenge (+ certificate on Paper 3).
  • Unlimited attempts: Reattempt the test to improve your score with randomized questions in Paper 2 & 3.
  • Free of charge: No sign-up or payment required to access this comprehensive test.

How this test helps you study better

  • Step 1 – Concept check: Start with Paper 1 to check your grasp of basic P-Block element concepts.
  • Step 2 – Reinforce: Take Paper 2 for mixed concept and numerical questions.
  • Step 3 – Challenge yourself: Finish with Paper 3 to prepare for advanced-level questions and exams.
  • Step 4 – Analyze results: Study your missed questions and review the detailed answers to strengthen weak areas.

Important notes (read before you start)

  • Do not refresh / close the tab during the test.
  • Best experience: Use the latest version of Chrome/Edge and ensure a stable internet connection.
  • Allow cookies / local storage for a smooth experience and progress saving.
  • Safety: The test is 100% free, and there are no hidden charges or login requirements.

More practice for Class 11 Chemistry

After completing the P-Block Elements online test, continue your Chemistry practice with other resources: Class 11 Chemistry MCQ Collection or try the Class 11 Chemistry Online Test Index for other chapters.

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