They are mostly made out of Hydrogen and Carbon. They make up most of the things we need in our daily life.
- Alkanes
- Alkenes
- Alkynes
ALKANES
Ants and cockroaches have n-undecane which is a pheromone in their bodies11. It helps cockroaches aggregate.
Pristane is found in shark liver oil and also in sperm whale, lobster, zooplankton, etc.
- heating/cooling house (air conditioning)
- ovens
- fireplaces
- outdoor lights
- Fuel cells
- plastic products (from cracking of ethane, propane)
- fertilizer (in Haber-Bosch process for production of ammonia, hydrogen comes from methane)
ALKENES
Alkenes are much more reactive than alkanes because alkenes are unsaturated. An alkene may be distinguished from an alkane by shaking the hydrocarbon with bromine water.
Lower alkenes are used as fuel and illuminant. These may be obtained by the cracking of kerosene or petrol.
As raw materials for the manufacture of industrial Chemicals such as alcohols, aldehydes, and etc.
Also used for artificial ripening of fruits, as a general anesthetic, for making poisonous mustard gas (War gas) and ethylene-oxygen flame.
ALKYNES
Chemical compounds that have triple and double bonds in their chemical structures are referred to as unsaturated. Because alkynes have triple bonds in their chemical structure and consist of carbon and hydrogen atoms, they are unsaturated hydrocarbons.
- Acetylene, also referred to as ethyne, is one of the most well-known and widely used alkynes. It can undergo several chemical reactions that are needed in manufacturing products in different industries.
- Another alkyne, propyne, also known as methylacetylene, is commonly used as a substitute for acetylene as fuel for welding torches. It is also being investigated as possible fuel for rockets in space craft.



