Carbon and its Compounds
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Transcript of Carbon and its Compounds
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Carbon and its Compounds
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What Is Carbon ?
CARBON is the chemical element with symbol C and atomic number 6. As a member of group 14 on the periodic table, it is nonmetallic and tetravalent—making four electrons available to form covalent chemical bonds. There are three naturally occurring isotopes, with 12C and 13C being stable, while 14C is radioactive
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hYDROCARBONSHYDROCARBONS are compounds of carbon and hydrogen only.Hydrocarbons are classified based on the: The type of bond between carbon
atoms:Single covalent bondDouble covalent bondTripple covalent bond
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Types of hydrocarbons
SATURATED HYDROCARBON
UNSATURATED HYDROCARBON
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Saturated hydrocarbonsIn a saturated hydrocarbon, all the bonds between carbon atoms are single bonds.Alkane is another name for a saturated hydrocarbon.
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SATURATED HYDROCARBONS
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Unsaturated hydrocarbons A h y d r o c a r b o n t h a t c o n t ai n s one o r m o r e d o u b l e o r t r I p l e b o n d s I s a n u n s a tu r a t ed h y d r o c a r b o n .T h e r e a r e t h r e e t y p e s o f u n s a tu rated h y d r o c a r b o n s : a l k e n e s , a l k yn e s & a r o m a t I c h y d r o c a r b o n s .
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UNSATURATED HYDROCARBONS ALKENES AND ALKYNES
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NO. OF CARBON ATOMS
NAME MOLECULAR FORMULA
STRUCTURE(DISPLAYED FORMULA)
1 METHANE CH4
2 ETHANE C2H6
3 PROPANE C3H8
4 BUTANE C4H10
5 PENTANE C5H12
6 HEXANE C6H14
STRUCTURE OF SATURATED HYDROCARBONS
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Straight Chains
A hydrocarbon can contain one carbon atom, as in methane or thousands of carbon atoms, as in cellulose.
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Branched Chains
Carbon has an ability to form branches with other carbon atoms. Simple branched alkanes often have a common name using a prefix to distinguish them from linear alkanes, for example n-pentane, isopentane, and neopentane.IUPAC naming conventions can be used to produce a systematic name.
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The Ring Or CyclicCarbons can be arranged in the form of a ring or cyclic, such as CYCLOHEXANE.
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AROMATIC HYDROCARBONS BENZENE RING
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ALLOTROPES OF CARBON
GRAPHITE DIAMOND
Allotropy or allotropism is the property of some chemical elements to exist in two or more different forms, known as allotropes of these elements. Allotropes are different structural modifications of an element; the element's atoms are bonded together in a different manner. For Example --
FULLERENE
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Graphite In g r a p h I t e e a c h c a r bo n a t o m Is b o n d e d t o t h r e e o t h e r Ca rbo n a t om o n t h e s a m e pl a ne I n a h e x a g o n a l A r r a y .
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Fullerene This is also a form of carbon allotrope. The first one to be identified was C-60 which has carbon arranged in the shape of a football.As it resembled to the geodesic dome designed by US architect Buckminster Fuller ,So the molecule was named fullerene.
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In diamond, each carbon atom is tetra headedly attached to four other carbon atoms forming a rigid three dimensional structure. Thus it is the hardest substance known.
Diamond
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Isomers T h e o r g a n ic c o m p o u n d s w h i c h hav e s a m e m o l e c u l a r f o r m u l a b u t d i f f e r e n t s t ru c t u r a l f o r m u l a ,t h e s e a r e c a l l e d I s o m e r s a n d t h e p r o p e r t y I s c a l l e d I s o m e r I s a t i o n : EX: n –b u t a n e & I s o b u t a n e
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FUNCTIONAL GROUPS
In organic chemistry, functional groups are specific groups of atoms within molecules that are responsible for the characteristic chemical reactions of those molecules. The same functional group will undergo the same or similar chemical reaction(s) regardless of the size of the molecule it is a part of.
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FUNCTIONAL GOUPS SUFFIX
ALDEHYDE (-CHO) – ‘al’ ALCOHOL ( -OH) – ‘ol’ KETONE ( --CO--) –‘one’
CARBOXYLIC ACID (-COOH)
– ‘oic acid’
HALOGEN ( -X) Pref – chloro , bromo, floro, iodo
SOME FUNCTIONAL GROUPS
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Thank YouGOLCONDA GROUP T K RANDHAWA