Alkane reaction
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Transcript of Alkane reaction
ALKANEREACTION
S
REACTION
MECHANISM
REACTION MECHANISM
•Is a step by step description of how a
chemical reaction occurs.
SUBSTITUTION
REACTION
SUBSTITUTION REACTION
• Is a chemical reaction in which an atom or group on a molecule is replaced by another atom or group.
NOTE: replacement by a halogen is called HALOGENATION reaction …..
EXAMPLE
GENERAL FORMULA
Alkane + Halogen -----------→ Haloalkane + Hydrogen Halideslightheat
H │H – C – H │ HMETHANE
+Cl – Cl
Cl2 --------→heat
light
H │H – C – Cl │ H
H – Cl +
chloromethane
HYDROGEN CHLORIDE
methylchloride
INDUSTRIAL
APPLICATIONS
COMBUSTION
REACTION
COMBUSTION REACTION
• Is a chemical reaction wherein hydrocarbon reacts with
oxygen and produces Carbon Dioxide and water.
NOTE: great amount of heat is released in this reaction…..
EXAMPLE
GENERAL FORMULA
Hydrocarbon (Alkane) + Oxygen -----------→ Carbon Dioxide + Water
METHANE
+ --------→ H2O +CH4 CO2 2 O2 2
C2H6
ETHANE
+ O2 --------→ CO2 67 42 + H2O
INDUSTRIAL
APPLICATIONS
Do U want to PLAY a
game?
Mechanics D’ class will be divided into 2 groups BOYS & GIRLS Each group will be represented by a leader I will be D’ one flashing D’ instructions on screen Then, U will be D’ one to execute the given
instructions. U will be given 20 seconds 2 answer. The winning group will receive a GIFT that will be revealed tomorrow.
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EXAMPLE
Do a sequence of reactions to produce
“trichlorofluoromethane” and commonly
known as FREON 11.
D’ game starts
Now………
181716000102030405060708091011121314152019O║
ITEM # 1
Do a sequence of reactions to produce
“dichlorodifluoromethane” or commonly
known as FREON 12.
181716000102030405060708091011121314152019O║
ITEM # 2
Do a combustion reaction of “octane gas”
a common reaction that take placed In a car engine.
181716000102030405060708091011121314152019O║
ITEM # 3
Do a sequence of reactions to produce
“1,1,1,2 – tetrafluoroethane” or commonly
known as HFC 134a.
181716000102030405060708091011121314152019O║
ITEM # 4
Do a combustion reaction of “nonane gas”
an alkane that usually used in some industrial
processes.
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ITEM # 5
Do a sequence of reactions to produce
“2,2 – dichloro – 1,1,1 – trifluoroethane” or commonly
known as HCFC 123.
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ITEM # 6
Do a combustion reaction of “decane gas”
an alkane that usually used in some industrial
processes.
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ITEM # 7
Do a sequence of reactions to produce
“2 – bromo – 2 – chloro – 1,1,1 – trifluoroethane”
or commonlyknown as HALOTHANE a liquid anaesthetic widely used today.
Dat’s all FOLKS…