- Organic molecules contain covalent bonds, which are made of valence electrons of the constituent atoms.
- During an organic reaction, molecules of the reactant undergo change in their structure due to redistribution of valence electrons of constituent atoms.
- This results in the bond breaking or bond forming processes as organic reaction proceeds. However, these processes are usually not instantaneous.
- As a result of this, the overall organic reaction occurs by the formation of one or more unstable species called intermediates.
Thus, organic reactions are often a multi-step process.