Please enable JavaScript.
Coggle requires JavaScript to display documents.
Ethene - Coggle Diagram
Ethene
Dehydration of ethyl alcohol
Reactants
- Ethanol and conc.sulphuric acid
Reaction
- CH3CH2OH + H2SO4 ----- CH3CH2HSO4 + H20
C2H5OH conc.H2SO4 ------ C2H4 + H2O
collection
- it is an inflammable gas
it is insoluble in water
dehydrohalogenation
ethylhalide or haloethane by alcholic hot conc.potassium hydroxide
C2H5Cl + KOH ------- C2H4 + KCl + H2O
C2H5Br + KOH ----- C2H4 + KBr + H20
physical properties
ethene is a colourless and inflammable gas with peculiar odour
m.p - 169 degree celcius b.p -102
sparingly soluble in water highly soluble in organic solvents
It prouduces an anaestic effect upon inhalation
Chemical properties
addition of hydrogen
ethane and hydrogen are passed divided catalyst such as platinum or palladium at 200 degree celcius
C2H4 + H2 ------ C2H6
addition of water
water molecule gets added in the presence of acids
CH2 = CH2 + H2O ------- C2H5OH (ethanol )
Bromine solution in CCl4 has reddish brown colour
addition of HCl
when ethene gas is treated with HCl chloroethane is formed
CH2 = CH2 + HCl (aq) ----- CH3-C2Cl
Polymerization
2 or more molecules of same compound to form a bigger molecule
nH2C = CH2 ----- H2C - CH2n
Oxidation
Ethene is oxidised with alkaline KMnO4 at room temperature