Edexcel Organic Chemistry A Level
Reactions 2024
Thermal Cracking - - High temperatures (1000C)
- High pressure (up to 70atm)
- Produces ALKENES
- E.g. ethene --> polyethene
Catalytic Cracking - - Zeolite catalyst
- Slight pressure
- High temperature (450C)
- Produces AROMATICS
Reformation - Alkanes --> cycloalkanes/ aromatic hydrocarbons
- Straight chain alkanes are a lot more likely to 'knock'
- Pt Catalyst (ct)
Alkene → Alkane - - Hydrogen
- 150C
- Ni ct
- Hydrogenation
, Edexcel Organic Chemistry A Level
Reactions 2024
- Irreversible
Alkene → Halogenoalkane - - Electrophilic Addition
- Bromine water
- Orange --> colourless
- Irreversible
Alkene → Alcohol - - H20 (steam)
- 300C
- Phosphoric Acid
- Reversible rxn
Alkenes → Diol - - Acidified potassium manganate
- Purple to colourless
Halogenoalkane → Alcohol - - Water
- warm Aqueous KOH and REFLUX
Reactions 2024
Thermal Cracking - - High temperatures (1000C)
- High pressure (up to 70atm)
- Produces ALKENES
- E.g. ethene --> polyethene
Catalytic Cracking - - Zeolite catalyst
- Slight pressure
- High temperature (450C)
- Produces AROMATICS
Reformation - Alkanes --> cycloalkanes/ aromatic hydrocarbons
- Straight chain alkanes are a lot more likely to 'knock'
- Pt Catalyst (ct)
Alkene → Alkane - - Hydrogen
- 150C
- Ni ct
- Hydrogenation
, Edexcel Organic Chemistry A Level
Reactions 2024
- Irreversible
Alkene → Halogenoalkane - - Electrophilic Addition
- Bromine water
- Orange --> colourless
- Irreversible
Alkene → Alcohol - - H20 (steam)
- 300C
- Phosphoric Acid
- Reversible rxn
Alkenes → Diol - - Acidified potassium manganate
- Purple to colourless
Halogenoalkane → Alcohol - - Water
- warm Aqueous KOH and REFLUX