Organic Chemistry – Some Basic Principles and Techniques
CBSE · Class 11 · Chemistry
Quick revision notes for Organic Chemistry – Some Basic Principles and Techniques — CBSE Class 11 Chemistry. Key concepts, formulas, and definitions for last-minute revision.
Key Topics to Revise
Tetravalence of Carbon and Molecular Shapes
- Carbon has unique property of catenation - ability to form covalent bonds with other carbon atoms
- Carbon forms four covalent bonds due to its electronic configuration (1s² 2s² 2p²)
- Three types of hybridization: sp³ (tetrahedral), sp² (trigonal planar), sp (linear)
Structural Representations and Molecular Models
- Complete structural formulas show all atoms and bonds
- Condensed formulas abbreviate by grouping atoms (CH₃CH₂OH)
- Bond-line formulas show only carbon skeleton with zig-zag lines
Classification of Organic Compounds
- Acyclic (open chain) compounds: straight or branched chains
- Cyclic compounds: Alicyclic (non-aromatic rings) and Aromatic (benzene-like rings)
- Functional groups determine chemical properties and reactions
IUPAC Nomenclature
- IUPAC system provides systematic naming based on structure
- Longest carbon chain determines the parent name
- Number carbons to give substituents lowest possible numbers
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Sources & Official References
- NCERT Official — ncert.nic.in
- CBSE Academic — cbseacademic.nic.in
- CBSE Official — cbse.gov.in
- National Education Policy 2020 — education.gov.in
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
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Structure of Atom
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Classification of Elements and Periodicity in Properties
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