Combustion
- Alcohols react with oxygen to produce carbon dioxide and water
![](https://easychem.com.au/wp-content/uploads/2019/06/Combustion.jpg)
Dehydration
- When dehydrated in the presence of a dehydrating agents, alcohols produce alkenes and water.
Reference image for reaction
![](https://easychem.com.au/wp-content/uploads/2019/06/Dehydration.jpg)
Substitution with HX
- Alcohols react with hydrogen halides (HX) to produce alkyl halides and water.
![](https://easychem.com.au/wp-content/uploads/2019/06/Substitution-with-HX.jpg)
Oxidation
- When oxidized, alcohols produce aldehydes and ketones. On further oxidation, carboxylic acids are produced.
- Only primary and secondary alcohols undergo oxidation in the presence of sodium or potassium dichromate.
Reference image for reactions:
![](https://easychem.com.au/wp-content/uploads/2019/06/Oxidation.jpg)