Skip to main content
Super TutorResources
Chapter 4 of 9
Revision Notes

Organic Chemistry – Some Basic Principles and Techniques — Revision Notes

CBSE · Class 11 · Chemistry

Organic Chemistry – Some Basic Principles and Techniques revision notes for CBSE Class 11 Chemistry: 4 topics in quick points.

76 questions92 flashcards5 concepts

Interactive on Super Tutor

Studying Organic Chemistry – Some Basic Principles and Techniques? Get the full interactive chapter.

Quizzes, flashcards, AI doubt-solver and a step-by-step study plan — built for revision notes and more.

Try Super Tutor — Free

Free trial, no card needed.

Key Topics to Revise

1

1. Basic ideas and historical development

  • Organic compounds are important in life, fuels, polymers, dyes, and medicines.
  • Berzelius proposed the vital force theory for the formation of organic compounds.
  • Wohler disproved the vital force theory in 1828 by synthesising urea from ammonium cyanate.
2

2. Shapes of organic molecules and bonding

  • Carbon forms methane, ethene, and ethyne using sp3, sp2, and sp hybridisation respectively.
  • sp hybrid orbitals have more s character than sp2 and sp3 orbitals.
  • Greater s character means shorter, stronger bonds and greater electronegativity.
3

3. Structural representations of organic compounds

  • Organic compounds are shown by complete structural formula, condensed formula, bond-line formula, and wedge-dash formula.
  • In bond-line formulas, carbon and hydrogen are not written; line ends usually represent methyl groups unless a functional group is present.
  • Line junctions represent carbon atoms with the required number of hydrogens to complete valency.
4

4. Classification of organic compounds and homologous series

  • Organic compounds are classified as acyclic or open chain, and cyclic or closed chain compounds.
  • Acyclic compounds are also called aliphatic compounds.
  • Alicyclic compounds are aliphatic cyclic compounds with carbon atoms arranged in a ring.

Get complete notes with diagrams and examples

Full Notes

Key Concepts

Berzelius proposed the vital force theoryCarbon can be sp3A pi bond forms by sidewaysOrganic compounds are written as completeOrganic compounds are classified as acyclic

Frequently Asked Questions

What are the important topics in Organic Chemistry – Some Basic Principles and Techniques for CBSE Class 11 Chemistry?
Key topics in Organic Chemistry – Some Basic Principles and Techniques include Basic ideas and historical development, Shapes of organic molecules and bonding, Structural representations of organic compounds, Classification of organic compounds and homologous series. Study these first, then practise questions on each for Class 11 exams.
How should I revise Organic Chemistry – Some Basic Principles and Techniques for Class 11 exams?
Learn the core ideas first, then work through the 76 practice questions on Organic Chemistry – Some Basic Principles and Techniques. Revise definitions regularly and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

More resources for Organic Chemistry – Some Basic Principles and Techniques

All CBSE Class 11 Chemistry Revision Notes

For serious students

Get the full Organic Chemistry – Some Basic Principles and Techniques chapter — start free.

Quizzes, flashcards, an AI doubt solver and a study plan for CBSE Class 11 Chemistry. Free to start, no card needed.

Try Super Tutor Free
Try this chapter free