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Chemical properties of ethane and ethene
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Solution
Ethane undergoes substitution reactions whereas ethene undergoes addition reactions.
Chemical properties of Ethene:
1. Addition of hydrogen
A molecule of hydrogen is added to ethene in the presence of a nickel catalyst at 250-3000oC to form ethane . The reaction is known as hydrogenation.
C2H4 + H2 → C2H6
2. Addition Of Chlorine
Ethene adds chlorine at room temperature to form dichloromethane.
CH2=CH2 + HCl → CH3-CH2-Cl
3. Combustion
Ethene readily burns in air or oxygen to form carbon-dioxide water and heat.
C2H4 + 3O2 → 2CO2 + 2H2O + heat
Chemical properties of ethane:
1. Halogenation
C2H6 + Cl2 + energy → C2H5Cl + HCl
2. Combustion
2 CH3CH3 + 7 O2 → 4 CO2 + 6 H2O
Ethane undergoes substitution reactions whereas ethene undergoes addition reactions.
Chemical properties of Ethene:
1. Addition of hydrogen
A molecule of hydrogen is added to ethene in the presence of a nickel catalyst at 250-3000oC to form ethane . The reaction is known as hydrogenation.
C2H4 + H2 → C2H6
2. Addition Of Chlorine
Ethene adds chlorine at room temperature to form dichloromethane.
CH2=CH2 + HCl → CH3-CH2-Cl
3. Combustion
Ethene readily burns in air or oxygen to form carbon-dioxide water and heat.
C2H4 + 3O2 → 2CO2 + 2H2O + heat
Chemical properties of ethane:
1. Halogenation
C2H6 + Cl2 + energy → C2H5Cl + HCl
2. Combustion
2 CH3CH3 + 7 O2 → 4 CO2 + 6 H2O
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