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NCERT Chemistry Class 11 P Block Elements: The subject experts at Shiksha have prepared the Class 11 Chemistry Chapter 11 solutions pdf, focusing on the level of boards and competitive exams. NCERT p Block Elements solutions Class 11 is the best resource for exam preparation. Solving the questions mentioned in the Class 11 Chemistry NCERT solutions will enhance the problem solving skills and improve conceptual knowledge. However, it is advised that students must practice the questions and answers based on the P Block elements after understanding the topics well. Moreover, for a better understanding of the p block element chapter, check the Class 11 Chemistry p-Block summary mentioned at the end of the chapter.
S Block elements are the periodic table elements from groups 13 to 18. All the non-metals and metalloids exist only in the p-block of the periodic table. In this chapter, students will learn the basic physical and chemical properties of the p-block elements, uses of p block elements like diamond, graphite carbon in the industries and their properties.
Boron, carbon, nitrogen, oxygen, fluorine, and helium are some important elements of the p-block groups. Their valence shell electronic configuration is ns2 np1-6 (except for He). However, the inner core of the electronic configuration may differ, and this difference greatly influences the elements' physical properties, such as atomic and ionic radii, ionisation enthalpy, etc., as well as their chemical properties. Students can check here the NCERT class 11 Chemistry P-block elements solutions prepared by the subject experts.
* The Central Board of Secondary Education (CBSE) has removed the P block element chapter from the syllabus of Class 11 Chemistry.
- NCERT Chemistry Class 11 P-Block Elements Topics Covered
- The p- Block Elements Solutions
- Benefit of using NCERT Solutions for Class 11 Chemistry Chapter 11
- NCERT Chemistry Chapter 11 The p block Element - FAQs
NCERT Chemistry Class 11 P-Block Elements Topics Covered
Candidates can check here the list of all topics that are covered under the P-block elements chapter of the NCERT Chemistry class 11.
- Group 13 Elements: The Boron Family
- Electronic Configuration
- Atomic Radii
- Ionization Enthalpy
- Electronegativity
- Physical Properties
- Chemical Properties
- Important Trends and Anomalous Properties of Boron
- Some Important Compounds of Boron
- Borax
- Orthoboric Acid
- Diborane, B2H6
- Uses of Boron and Aluminium and Their Compounds
- Group 14 Elements: The Carbon Family
- Electronic Configuration
- Covalent Radius
- Ionization Enthalpy
- Electronegativity
- Physical Properties
- Chemical Properties
- Important Trends and Anomalous Behaviour of Carbon
- Allotropes of Carbon
- Diamond
- Graphite
- Fullerenes
- Uses of Carbon
- Some Important Compounds of Carbon and Silicon
- Carbon Monoxide
- Carbon Dioxide
- Silicon Dioxide, SiO2
- Silicones
- Silicates
- Zeolites
The p- Block Elements Solutions
Students can find below the Chemistry p-Block chapter solved questions. These are short-answer type questions asked for 2 marks in the exam.
| 11.1. Discuss the pattern of variation in the oxidation states of (i) B to Tl and (ii) C to Pb. |
| Answer: (i) B to Tl |
| 11.2. How can you explain higher stability of BCl3 as compared to TlCl3? |
| Answer: BCl3 is quite stable. Because there is absence of d- and f-electrons in boron three valence electrons (2s2 2px1) are there for bonding with chlorine atom. In Tl the valence s-electron (6s2) are experiencing maximum inert pair effect. Thus, only 6p1 electron is available for bonding. Therefore, BCl3 is stable but TlCl3 is comparatively unstable. |
| 11.3. Why does borontrifluoride behave as a Lewis acid? |
| Answer: In BF3, central atom has only six electrons after sharing with the electrons of the F |
| 11.4. Consider the compounds, BCl3, and CCl4. How will they behave with water? Justify. |
| Answer: In BCl3, there is only six electrons in the valence shell of B atom. Thus, the octet is incomplete and it can accept a pair of electrons from water and hence BCl3 undergoes hydrolysis. Whereas, in CCl4, C atom has 8 electrons and its octet is complete. That’s why it has no tendency to react with water. |
Benefit of using NCERT Solutions for Class 11 Chemistry Chapter 11
The benefits of Chemistry Class 11 NCERT solutions are as follows:
- Having a good grip on basic concepts
- Improves Time Management Skills
- Saving time is finding the solutions to questions.
- Boost confidence in students
- Quick Revision and Practice
- Preparation for various entrance tests.
- Helps in preparing short notes on p-Block Elements Class 11 for quick revision
- Extra questions on p-Block Elements Class 11 are provided, focusing on competitive exams such as JEE Mains and NEET.
NCERT Chemistry Chapter 11 The p block Element - FAQs
Frequently asked questions (FAQs) based on the p-block elements are provided below.
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