Chemistry chapters
  1. 01Alcohols, Phenols & Ethers
  2. 02Aldehydes & Ketones
  3. 03Amines
  4. 04Atomic Structure
  5. 05Biomolecules
  6. 06Carboxylic Acids & Derivatives
  7. 07Chemical Bonding & Molecular Structure
  8. 08Chemical Equilibrium
  9. 09Chemical Kinetics
  10. 10Coordination Compounds
  11. 11Electrochemistry
  12. 12General Organic Chemistry
  13. 13Haloalkanes & Haloarenes
  14. 14Hydrocarbons
  15. 15IUPAC Nomenclature
  16. 16Ionic Equilibrium
  17. 17Isomerism
  18. 18Metallurgy
  19. 19Periodic Table & Periodicity
  20. 20Polymers
  21. 21Practical / Purification of Organic Compounds
  22. 22Qualitative & Salt Analysis
  23. 23Redox Reactions
  24. 24Solid State
  25. 25Solutions
  26. 26Some Basic Concepts of Chemistry
  27. 27States of Matter
  28. 28Surface Chemistry
  29. 29Thermodynamics & Thermochemistry
  30. 30d & f Block Elements
  31. 31p-Block Elements
  32. 32s-Block Elements
  33. 33Environmental Chemistry & Everyday Life

Chapter 17 · Class 11-12 & JEE/NEET

Isomerism

49 topics in 13 parts

Key ideas

Zn Anode (-) 1M ZnSO₄ (aq) Zn → Zn²⁺ + 2e⁻ Cu Cathode (+) 1M CuSO₄ (aq) Cu²⁺ + 2e⁻ → Cu Salt Bridge (Agar-Agar + KCl) V e⁻ flow → E°_cell = E°_cathode - E°_anode = +1.10 V
Isomerism

Diagnostic Comparison & Property Matrix

Parameter / FeatureStandard State / Condition AAltered State / Condition B
Driving ForceThermodynamic control (more stable product)Kinetic control (lower activation barrier)
Solvent DependencyPolar protic solvent stabilizes charge separationPolar aprotic solvent accelerates bare nucleophilicity
Temperature InfluenceHigh temperatures favor elimination / endothermicMild temperatures favor addition / exothermic
Common PitfallOverlooking rearrangement or stereochemical inversionNeglecting boundary limits or stoichiometric coefficients

All 49 topics in Isomerism

  1. Classification & Basics

    • Constitutional Isomers & Stereoisomers
    • Counting Isomers

  2. Structural Isomerism

    • Chain Isomerism
    • Position Isomerism
    • Functional Group Isomerism
    • Metamerism
    • Ring-Chain Isomerism
    • Counting Structural Isomers

  3. Tautomerism

    • Keto-Enol Tautomerism
    • Enol Content & Stability
    • Other Prototropic Tautomerism

  4. Geometrical Isomerism

    • Conditions for Geometrical Isomerism
    • E/Z Configuration
    • Geometrical Isomer Counting
    • Oxime Geometrical Isomerism

  5. Conformational Isomerism

    • Ethane & Butane Conformations
    • Cyclohexane Conformations
    • Substituted Cyclohexanes
    • Conformational Stability

  6. Chirality & Symmetry

    • Chiral Centers
    • Planes, Centers & Axes of Symmetry
    • Molecules Without Chiral Centers
    • Chirality at Non-Carbon Centers
    • Biological Significance of Chirality

  7. Stereochemical Relationships

    • Enantiomers
    • Diastereomers
    • Meso Compounds
    • Multiple Chiral Centers
    • Cyclic Stereoisomers
    • Counting Stereoisomers

  8. R/S Configuration

    • CIP Priority Rules
    • Assigning R/S Configuration
    • Relative & Absolute Configuration

  9. Fischer Projections

    • Drawing & Interpreting Fischer Projections
    • Interconversion of Projections

  10. Optical Activity

    • Plane-Polarized Light
    • Specific Rotation & Polarimetry
    • Racemic Mixtures
    • Enantiomeric Excess

  11. Resolution & Chiral Synthesis

    • Resolution of Racemates
    • Methods of Resolution
    • Stereoselective Synthesis
    • Chiral Drugs

  12. Stereochemistry of Reactions

    • Stereochemical Outcomes
    • Retention, Inversion & Racemization
    • Reactions at Chiral Centers

  13. Biphenyl & Axial Chirality

    • Stereochemistry of Biphenyls
    • Absolute Configuration of Biphenyls
    • Racemization of Biphenyls