"substitution" reaction (1 Viewer)

[Ekki]

ok so am I going crazy or is there no such thing (in HSC chem) as a substitution reaction......it's on our cheat sheet for chem and I think the teacher has made it up.....it doesn't exit according to conquering chem, chemistry contexts and everyone in my class I've spoken to. Any help - what is it? have we missed it? are we blind and not seeing it? any suggestions as to what he may be referring to?

Thanks

 

[Ekki]

ok so I've found that it exists......it seems to be something to do with halogens and free radicals anyone recognise the term "free radical halogenation"?......the obvious has also been stated .... "a group of a particular compound is replaced by another group" that I got ion the beginning from the name but how does this happn?

 

[Ekki]

over it

it's ok...I know no one was concerned but I have found the answers

Substitution Reactions

A substitution reaction is a reaction in which atom(s) of a reactant are substituted by atom(s) from the other. It is generally represented by the following equation:

AB + CD ---> AC + BD

Here A, B, C, and D can be an atom, or a functional group or a substrate.