Tuesday, January 22, 2008

AIEEE Chemistry UNIT 20 SOME BASIC PRINCIPLES OF ORGANIC CHEMISTRY

Tetravalency of carbon;
Shapes of simple molecules - hybridization (s and p);
Classification of organic compounds based on functional groups: - C = C - , - C ? C - and those containing halogens, oxygen, nitrogen and sulphur; Homologous series; Isomerism - structural and stereoisomerism.
Nomenclature (Trivial and IUPAC)
Covalent bond fission: Homolytic and heterolytic: free radicals, carbocations and carbanions; stability of carbocations and free radicals, electrophiles and nucleophiles.
Electronic displacement in a covalent bond: Inductive effect, electromeric effect, resonance and hyperconjugation.
Common types of organic reactions - Substitution, addition, elimination and rearrangement.
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Hybridization of carbon
sp - in alkynes - triple bond
sp2 - in alkenes - double bond
sp3 - in alkanes

sigma and pi bonds
alkanes - all sigma bonds with hydrogen atoms or single bonds with carbon atoms
alkenes - one sigma and one pi bond in double bond, and all sigma bonds with hydrogen atoms or single bonds with carbon atoms
alkynes - one sigma and two pi bonds in triple bond, and all sigma bonds with hydrogen atoms or single bonds with carbon atoms

To be expanded

Isomerism
Nomenclature
Covalent bond

are in following blogs

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