Chemistry · Class 11 · Chapter 8
Organic Chemistry – Some Basic Principles and Techniques
13 lessons 106 min 9 practice questions
This chapter is the toolkit for all of organic chemistry: how carbon's tetravalence and hybridisation fix molecular shapes, how organic structures are drawn, classified and named by IUPAC rules, what kinds of isomers exist, and how electrons move during reactions (bond cleavage, reactive intermediates, inductive, resonance, electromeric and hyperconjugation effects). It ends with the practical side: purifying organic compounds and detecting and estimating the elements in them.
What the exam asks
NEET asks IUPAC names and isomer counts, stability orders of carbocations, carbanions and free radicals, comparisons based on inductive and resonance effects, and matching purification methods or Lassaigne's test colours to situations. Quantitative estimation (Dumas, Kjeldahl, Carius) appears as short numericals. Common errors are choosing the wrong parent chain or locants, mixing up +I and −I groups, confusing the electromeric effect with the permanent effects, and forgetting where Kjeldahl's method fails.
Lessons
13 lessons · 106 min
1Carbon's tetravalence and the shapes of organic moleculesNCERT § "Tetravalence of Carbon: Shapes of Organic Compounds"7 min2Structural representationsNCERT § "Structural Representations of Organic Compounds"7 min3Classification of organic compoundsNCERT § "Classification of Organic Compounds"7 min4IUPAC nomenclatureNCERT § "Nomenclature of Organic Compounds"7 min5IsomerismNCERT § "Isomerism"7 min6Bond cleavage and reactive intermediatesNCERT § "Fundamental Concepts in Organic Reaction Mechanism"7 min7Electron displacement effectsNCERT § "Electron Displacement Effects in Covalent Bonds"8 min8Resonance in organic moleculesNCERT § "Resonance Structure"8 min9Types of organic reactionsNCERT § "Types of Organic Reactions and Mechanisms"7 min10Methods of purificationNCERT § "Methods of Purification of Organic Compounds"9 min11Qualitative analysis: detecting elementsNCERT § "Qualitative Analysis of Organic Compounds"7 min12Quantitative analysis: estimating elementsNCERT § "Quantitative Analysis"9 min13Chapter reviewMust-know facts, traps and formulas16 min