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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. In the structure of Quartz, a form of silica (), how many oxygen atoms are shared between adjacent tetrahedra?

2 / 30

2. Fullerenes exhibit chemical properties that classify them as:

3 / 30

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

4 / 30

4. How many valence electrons are present in the elements of the Boron family?

5 / 30

5. The decomposition of limestone: is used for the industrial production of lime. This reaction is classified as:

6 / 30

6. What is the hybridization of the carbon atoms in the diamond crystal structure?

7 / 30

7. The empirical formula of Orthoboric acid is . What is the corresponding general formula for the acid derived from Boron trioxide ()?

8 / 30

8. The Carbon Dioxide molecule has a linear shape. What is the hybridization of the central carbon atom in and the bond angle, respectively?

9 / 30

9. In the structural tetraborate anion of crystalline Borax, the number of Boron atoms that are hybridized and hybridized are:

10 / 30

10. Which of the following carbon-containing ions derives its unique stability and planar structure from the presence of delocalized bonds?

11 / 30

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

12 / 30

12. The presence of a completely filled -subshell in Gallium () leads to:

13 / 30

13. How does the allotropic form of Boron differ from that of Aluminium?

14 / 30

14. What is the hybridization of the Boron atom in the anion formed when orthoboric acid reacts with water?

15 / 30

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

16 / 30

16. Which set of reactants is preferred for the preparation of anhydrous aluminium chloride, ?

17 / 30

17. Due to the availability of vacant -orbitals, Silicon readily shows an expanded octet in its compounds, such as in . What is the maximum covalency exhibited by Silicon in this ion?

18 / 30

18. The greenhouse effect is caused by certain gases in the atmosphere absorbing and re-emitting which type of radiation emitted from the Earth's surface?

19 / 30

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

20 / 30

20. What is the fundamental building unit of all naturally occurring silicates?

21 / 30

21. In the natural world, the most common form of ring structure containing Group 14 elements is found in silicates, specifically those where tetrahedra link to form closed rings. What is the structural classification for silicates containing the ion (like in Beryl)?

22 / 30

22. 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?

23 / 30

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

24 / 30

24. Which of the following is the standard laboratory method for preparing Carbon Dioxide () gas?

25 / 30

25. Which structural feature characterizes the difference between a linear silicone polymer and a cross-linked (3D) silicone polymer?

26 / 30

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

27 / 30

27. Borax can be commercially prepared from the mineral Colemanite () by treating it with:

28 / 30

28. Diamond possesses an exceptionally high melting point (subliming at around ). This is due to the need to overcome which forces/bonds?

29 / 30

29. Silicon's catenation tendency is low compared to Carbon because the bond is easily attacked and cleaved by which common reagent?

30 / 30

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

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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!

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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. What is the fundamental building block of all silicate minerals?

2 / 50

2. A fundamental reaction in the synthesis of elemental silicon involves the reduction of silica: . In this reaction, the is:

3 / 50

3. The decomposition of limestone: is used for the industrial production of lime. This reaction is classified as:

4 / 50

4. When a solution of Borax is treated with a calculated amount of an acid (like or ), the main product formed is:

5 / 50

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

6 / 50

6. The presence of a completely filled -subshell in Gallium () leads to:

7 / 50

7. Moving down Group 14 (C to Pb), how does the change in atomic radius typically proceed?

8 / 50

8. The structure of consists of a closed cage made up entirely of five-membered rings and six-membered rings. How many five-membered rings are present in the molecule?

9 / 50

9. What is the fundamental building unit of all naturally occurring silicates?

10 / 50

10. Diborane () can be prepared in the laboratory by the reaction of iodine () with which reducing agent?

11 / 50

11. What type of intermolecular forces holds the parallel hexagonal layers of graphite together?

12 / 50

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

13 / 50

13. Which of the following is the chemical formula for the boron ore Colemanite?

14 / 50

14. The industrial preparation of water gas () from coke () and steam (): is an example of a reaction that is highly:

15 / 50

15. Which statement accurately compares the natural occurrence of Boron (B) and Aluminium (Al)?

16 / 50

16. When comparing the elements of Group 14, the bond energy (and thus the catenation tendency) decreases most significantly after which element?

17 / 50

17. The stability of the oxidation state among Group 14 elements:

18 / 50

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

19 / 50

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

20 / 50

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

21 / 50

21. The general formula for a natural zeolite can be represented as:

22 / 50

22. The zeolite, a key catalyst in the "Methanol-to-Gasoline" () process, is an example of a synthetic zeolite. This process demonstrates the zeolite's ability to selectively convert:

23 / 50

23. How does Boron (B) primarily occur in nature?

24 / 50

24. Where are the p-block elements located in the modern periodic table?

25 / 50

25. Carbon Nanotubes (CNTs) are structurally derived from which other carbon allotrope?

26 / 50

26. What is the fundamental difference in bonding that allows Carbon to form stable and multiple bonds, while the other elements in Group 14 primarily form single bonds, hindering their catenation potential?

27 / 50

27. Carbon Monoxide is a neutral gas, meaning it does not react with acids or bases. Which physical property is also characteristic of ?

28 / 50

28. Clay minerals and Micas are excellent examples of which type of silicate structure?

29 / 50

29. Carbon Nanotubes (CNTs) are famous for being the strongest and stiffest materials known. This is primarily due to:

30 / 50

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

31 / 50

31. Which of the following statements correctly describes the bonding ability that is unique to Carbon within Group 14?

32 / 50

32. Which statement correctly describes a key difference between and its homologue (silica)?

33 / 50

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

34 / 50

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

35 / 50

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

36 / 50

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

37 / 50

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

38 / 50

38. Which of the following compounds is gaseous at room temperature due to Carbon's ability to form multiple bonds?

39 / 50

39. Why is graphene considered to be a much more promising material than graphite for transparent, flexible electronic devices?

40 / 50

40. What is the key structural feature of zeolites that allows for their selective uses in separation and catalysis?

41 / 50

41. The chemical name of Borax () is:

42 / 50

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

43 / 50

43. The electronic configuration of Thallium (Tl, Z=81) includes a filled subshell. What is its valence shell configuration?

44 / 50

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

45 / 50

45. The polymerization reaction used to convert the hydrolyzed monomers () into long-chain silicone polymers is known as:

46 / 50

46. 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?

47 / 50

47. When comparing the stability of the tetrahalides () and dihalides () of Lead (), which conclusion is correct?

48 / 50

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

49 / 50

49. What is the general name given to the class of organosilicon polymers that form both chains and rings with the backbone?

50 / 50

50. The bond length within a graphite layer is approximately . This value lies between the bond length of a single bond () and a double bond (). This is evidence for:

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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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