Chemical Properties of Alkenes Video Lecture | Chemistry for JEE Main & Advanced

chemical properties of alkanes alkenes
more reactive than alkanes because they
are unsaturated hydrocarbons that have a
double bond between two carbon atoms
alkenes can undergo combustion reactions
addition reactions and polymerization
reactions in the event of excess oxygen
all alkenes burn completely to produce
carbon dioxide and water the complete
combustion of alkenes produce a lot of
heat energy so alkenes are good fuel in
a condition of inadequate oxygen the
combustion of alkenes is incomplete like
alkanes alkenes combust in a condition
of inadequate oxygen to produce carbon
dioxide carbon monoxide water and soot
combustion alkenes produce more soot and
Sparkle than alkanes this is because
alkenes are unsaturated hydrocarbons and
the percentage of the carbon per atoms
is higher than alkanes the addition
reaction is a reaction where other atoms
are added to a molecule alkenes undergo
addition reaction with many chemicals
such as halogens hydrogen hydrogen
halide and water
alkenes react with halogen to produce
halogen or gain if the halogen used is
bromine then the reaction is Brahma
nation if the halogen is chlorine then
the reaction is chlorination alkenes
react with hydrogen to produce alkanes
reaction occur when the mixture of
alkene gas and hydrogen gas is flowed
over a catalyst that is heated to 180
degrees Celsius alkenes react with
hydrogen halide gas to produce halogen
alkanes in hydrohalogenation only one
halogen atom is added during the
reaction alkenes react with water in the
presence of strong acid or catalyst to
form alcohol in this reaction mixture of
alkene gas and steam h2o is flowed over
a phosphoric acid catalyst at a
temperature 300 degrees Celsius and the
pressure of 60 atmospheres alkenes react
with acidified potassium manganate 7
solution to produce dial alcohol when
alkene is shaken with acidified
potassium manganate 7 solution and
addition reaction occurs polymerization
is a process of combining small molecule
units to form a long chain molecule for
example the polymerization of ethene can
be carried out at a temperature of 200
degrees Celsius and under a pressure of
1500 atmospheres to form polythene
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