NCERT Solutions Class 11 Chemistry Chapter 8 Organic Chemistry - Some Basic Principles And Techniques - PDF Download

NCERT solutions class 11 chemistry - chapter 8 Organic chemistry - some basic principles and techniques provides a comprehensive range of fundamental and advanced concepts that are essential for achieving satisfactory results in the exams. NCERT solutions are specifically designed to meet the needs of students who are interested in appearing for the entrance exams like NEET and JEE mains after Class 12. These examinations are the most popular after Class 12 and to achieve satisfactory results, students must be able to solve the relevant NCERT questions.

After studying the chapter, organic chemistry - some basic principles and techniques, you will able to-

• Figuring out why carbon is so common and the different shapes of organic molecules,

• Writing out the structures of organic molecules in different ways

• Classifying the organic compounds, naming them according to IUPAC nomenclature and deducing their structures from the names

• Understanding the organic reaction mechanism

• Explaining how electronic displacements affect the structure and reactivity of organic compounds

• Recognizing the types of organic reactions

• Learning the techniques for analyzing organic compounds

• Writing out the chemical reactions involved in the qualitative analysis of organic compounds

• Understanding the principles of quantitative analysis of organic compounds.

NCERT Solutions for Class 11 Chemistry Chapter 8 sections

8.1 General Introduction: Organic chemistry is the study of organic compounds, which are primarily made up of carbon and hydrogen, but also contain other elements like oxygen, nitrogen, and sulfur, as well as halogens. Organic compounds are essential to life and play an important role in many natural and synthetic reactions. Some Basic Principles and Techniques in Organic Chemistry include the fundamental concepts and methods used to understand, analyse, and manipulate organic molecules.

8.2 Tetravalence of carbon: shapes of organic compounds : In this section, understanding and predicting the properties of carbon compounds with the help of knowledge of fundamental concepts of molecular structure will be discussed

Following are the subtopics in this section:

       8.2.1 The shapes of carbon compounds

       8.2.2 Some characteristic feature of π bonds

8.3 Structural representations of organic compounds: Structural representations of organic compounds like dot structure, dash structure, condensed structure , three dimensional representation of organic molecules will be discussed in this section.

Following are the subtopics in this section:

       8.3.1 Complete, condensed and bond-line structural formulas

       8.3.2 Three dimensional representation of organic molecules 

8.4 Classification of organic compounds : In this section, classification of organic compounds on the basis of their structure, aromaticity, functional group and homologous series will be discussed.

Following are the subtopics in this section:

       8.4.1 Functional group

       8.4.2 Homologous series

8.5 Nomenclature of organic compounds:  In this section, nomenclature of organic compounds on the basis of functional group, structure will be discussed.

Following are the subtopics in this section:

       8.5.1 The IUPAC system of nomenclature

       8.5.2 IUPAC nomenclature of alkanes

       8.5.3 Nomenclature of organic compounds having functional group(s)

       8.5.4 Nomenclature of substituted benzene compounds

8.6 Isomerism: In this section isomerism, which is phenomenon of existence of two or more compounds possessing rhe same molecular formula but different properties, will be discussed.

Following are the subtopics in this section: 

      8.6.1 Structural isomerism

      8.6.2 Stereoisomerism

8.7 Fundamental concepts in organic reaction mechanism: In this section, fundamental concepts in organic reaction mechanism like electron movement, bond formation, rates of transformation of reactants into products  etc. will be discussed.

Following are the subtopics in this section: 

      8.7.1 Fission of a covalent bond

      8.7.2 Substrate and reagent

      8.7.3 Electron movement in organic reactions 

      8.7.4 Electron displacement effects in covalent bonds

      8.7.5 Inductive effect

      8.7.6 Resonance structure

      8.7.7 Resonance effect

      8.7.8 Electromeric effect

      8.7.9 Hyperconjugation

      8.7.10 Types of organic reactions and mechanism

8.8 Methods of purification of organic compounds: In this section, various methods of purification of organic compounds will be discussed.

Following subtopics in this section:

      8.8.1 Sublimation

      8.8.2 Crystallisation

      8.8.3 Distillation

      8.8.4 Differential extraction 

      8.8.5 Chromatography   

8.9 Qualitative analysis of organic compounds: In this section, various methods of qualitative analysis of organic compounds will be discussed.

Following subtopics will be discussed in this section:

       8.9.1 Detection of carbon and hydrogen

       8.9.2 Detection of other elements

8.10 Quantitative analysis: In organic chemistry, quantitative analysis is very important. It assists chemists in determining the mass percentage of elements in a chemical compound. 

Following subtopics will be discussed in the section 8.10:

       8.10.1 Carbon and Hydrogen

       8.10.2 Nitrogen

       8.10.3 Halogens

       8.10.4 Sulphur

       8.10.5 Phosphorous

       8.10.6 Oxygen

Key Features of Class 11 Chemistry NCERT Solutions Chapter 8

In this introductory section, the scope and significance of organic chemistry are discussed, as well as the classification of organic compounds by their functional groups. 

• Carbon's four-covalent bond formation is discussed, and a discussion of structural isomers and stereoisomers is included. 

• Detailed explanations and examples are provided of how to use IUPAC rules to classify organic compounds in a systematic manner.

• NCERT solution provides an overview of the various methods used to purify organic compounds, from distillation and crystallization to sublimation and chromatography, as well as further exploring the isomerism of organic compounds. 

• NCERT solution provides guidance on qualitative analysis, such as tests to identify functional groups, and quantitative analysis, which includes empirical and molecular formula determination. 

• NCERT solution provides an explanation of the methods used to detect elements such as carbon, hydrogen and nitrogen, as well as sulfur and oxygen. Elemental analysis is all about figuring out how many elements are in an organic compound. 

• It uses different techniques to figure out the percentage of elements in the compound. It also uses examples and practice problems to show how to use analytical data to figure out empirical and molecular formulas.

Importance of Downloading the PDF of NCERT Solutions Class 11 Chemistry Chapter 8 Organic Chemistry - Some Basic Principles and Techniques

Downloading PDFs of NCERT solutions for class 11 chemistry chapter 8 “Organic Chemistry: some Basic Principles and Techniques” from reliable educational platform such as eSaral, etc., can provide several advantages to students. Here are the reasons why downloading the PDFs of the NCERT solutions for this chapter is important:

Accessibility: You can access the PDF anytime, anywhere: Once you have downloaded the PDF, you can access the PDF on your device, or you can print the PDF for offline use. With this flexibility, you can study and reference the solutions at your own convenience, whether you are at home or offline.

Reliable source: NCERT solutions from reliable sources like that of eSaral typically provide detailed and complete explanations for each question or concept in the chapter, which can help you clear any doubts you may have.

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No Distraction: Sometimes reading from a PDF provides a more focused reading experience without the distractions that may be present when reading online content.

Free PDF: NCERT solutions class 11 chemistry - chapter 8 is free available on eSaral website.

Frequently Asked Questions

Question 1: What is organic chemistry?

Answer 1: Organic chemistry is a branch of chemistry that focuses on the study of carbon-containing compounds, their properties, structures, reactions, and how they're made.

Question 2: Why is carbon so important in organic chemistry?

Answer 2: Carbons are important because they form stable bonds with each other and with other elements, which makes for a wide range of organic compounds.