January 4, 2023
In the I/GCSE chemistry curriculum:
- Alkenes are a homologous series of unsaturated hydrocarbons containing at least one Carbon-Carbon double bond in the structure.
- General Formula: CnH2n
- The first member of the series is Ethene
Reaction with Halogens
Reaction Conditions: Room Temperature and pressure
In I/GCSE chemistry, it is always used for testing a C=C (Alkene) – Turns Bromine water from Orange to Colourless
Reaction with Hydrogen
Conditions in the I/GCSE chemistry curriculum:
- 180°C
- Catalyst: finely divided Nickel
- Used in the production of margarine. The long chain fatty acid residues in cooking oils are unsaturated, saturation converts oil into a solid, which can be used as margarine.
End of this topic!