Click the structures to view the separate chain reaction steps in more detail
Chloroalkanes are alkanes with one or more hydrogen atoms substituted by a chlorine atom.
Halogens react with alkanes in photochemical reactions to form haloalkanes. Photochemical reactions are started by ultraviolet light. A hydrogen atom is substituted by chlorine. This is a free radical substitution reaction.
Free radicals are molecules with an unpaired electron, written like Cl• or CH3•. Free radicals are highly reactive and the result of bonds splitting equally – initiation reaction.
The reaction mechanism for the synthesis of chlormethane is shown above and happens when a mixture of methane and chlorineare exposed to UV light. The overall equation is: CH4 + Cl2 -> CH3Cl + HCl
These pages have been made to incorporate different UK Chemistry A Level specifications.
To see your specific specification choose from below:
We are sorry that this page was not useful for you!
Let us improve this page!
Tell us how we can improve this page (in your own language if you prefer)? If you would like a response, please include your email address e.g. [email protected]