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1-SHOT REVISION CARBON AND ITS COMPOUNDS
What do we learn? Bonding in Carbon Versatile nature of Carbon Saturated and Unsaturated Carbon Compounds Functional groups Homologous Series Nomenclature od Carbon compounds Chemical Properties of Carbon Compounds Ethanol and Ethanoic Acid Soaps and Detergents
Carbon Atomic number – 6 Mass number -12 Electronic configuration – 1s2,2s2,2p2 Valence electrons -4
Why Carbon is Unique? Tetravalency – Carbon has 4 valence electrons and also can share with other elements to form Covalent Bond Catenation – Ability to form bonds with other atoms of carbon by giving rise to large molecules
Covalent Bond A chemical bond which involves sharing of electrons between atoms is called Covalent Bond
Formation of H2 Molecule H. . H . H HSha.red electrons H-H
Formation of N2 Molecule .. N .. .. .. N .. N .. .. N .. .. .. N N
HYDROCARBONS Compounds which contains only carbon and hydrogen are called as Hydrocarbons Hydrocarbons Unsaturated Hydrocarbons Saturated Hydrocarbons Alkanes Alkenes Alkynes
Saturated Hydrocarbons Compounds which contain single covalent bonds between carbon atoms are called Saturated hydrocarbons Alkanes Hydrocarbons which are saturated con tains single bond between carbon atoms are Alkanes General Formula – CnH2n+2 n = number of atoms
Unsaturated Hydroc arbons Compounds which contain double or triple bonds between carbon atoms are called Saturated hydrocarbons Alkenes Hydrocarbons which are Unsaturated contains double bond between carbon atoms are Alkanes General Formula – CnH2n
Alkynes Hydrocarbons which are Unsaturated contains triple bond between carbon atoms are Alkanes General Formula – CnH2n-2
What is functional group? Functional groups are those which decide the chemical property of an organic compounds. These groups contain Heteroatom Heteroatom- Along with Carbon and Hydrogen, other elements are also present. Those elements are called as Heteroatom Oxygen,Nitrogen,Hydrogen etc
Functional Groups in Carbon Compounds Source-NCERT Textbook
HOMOLOGOUS SERIES Series of same organic compounds but differ from adjacent members by –CH2 group is called as Homologous Series. Each member of homologous series is called as Homologue
IUPAC Nomenclature of Compounds Nomenclature– Naming IUPAC- International Union of Pure and Applied Chemistry Rules for IUPAC Nomenclature First name- Prefix Middle name- Word root Last name- Suffix
The group or atoms that should be mentioned as Prefix Group Name as Prefix -Cl Chloro -F Fluro -CH3 Methyl -Br Bromo
•The number of carbon atoms should be mentioned as word root 1 C Meth 2 C Eth 3 C Prop 4 C But 5 C Pent 6 C Hex 7 C Hept 8 C Oct 9 C Non
•Writing Suffix Functional Group should be mentioned as Suffix Group Name -OH ol -CHO al -COOH oic >C=O one