Friday 12 April 2013

Basic classification of Alkanes, Alkenes & Alkynes and their properties


S.No.
Property
Alkanes
Alkenes
Alkynes
General Formula
CnH2n+2
CnH2n
CnH2n-2
Gases
Upto 5 carbon atoms
Upto 3 carbon atoms
Upto 3 carbon atoms
Liquids
Between 6 to 10 carbon atoms
Between 4 to 13 carbon atoms
Between 4 to 11 carbon atoms
Solids
Above 10 carbon atoms
Above 13 carbon atoms
Above 1 carbon atoms
In water
Insoluble
Insoluble
Insoluble
Combustion
Highly combustible and so used as fuels
On combustion, produces CO2 and H2O
Produce large amount of heat on combustion. Used as fuels
Reactions
Highly unreactive. Undergo substitution reactions
Undergo additional reactions giving rise to ssaturated compounds.
Combine with hydrogen, halogens etc to give rise to saturated compounds.
Compound
Saturated Hydrocarbon
Unsaturated Hydrocarbon
Unsaturated Hydrocarbon
Other name
Paraffins
Olefins


Uses
Used as fuels such as natural gas, kerosene, petrol, LPG; solvents and in the production of methonal, ethanol, hydrogen
Used in the production of polymers, alcohols
Used in welding (acetylene), artificial ripening of fruits

No comments:

Post a Comment