Formation of Haloalkanes - FRS Flashcards
1
Q
Summarise how a halo alkane produced?
A
- when an alkane is combined with a halogen in the presence of a UV light
- chain reaction
- this is called free radical substitution
- can be applied to any alkane and halogen
2
Q
What is an example of a haloalkane?
A
- bromoethane and hydrogen bromide will be formed if methane and bromine are left in the dark with a UV light shined on them
CH4 + Br2 = CH3Br + HBr
3
Q
Define free radical substitution
A
- reaction bw alkane and halogen
- produces a haloalkane, a species which has a single unpaired electron, so extremely reactive
4
Q
Why is UV light needed in FRS?
A
UV light provides the energy to break bond in initiation stage
5
Q
Name the process in which haloalkane are produced
A
Free radical substitution
