kids encyclopedia robot

Alkyne facts for kids

Kids Encyclopedia Facts

An alkyne is a molecule that has a triple bond between two carbon atoms. They have general formula CnH2n-2. They are also called acetylenes. The smallest alkyne is acetylene, also called ethyne. Alkynes are hydrophobic: this means they dissolve well in organic solvents but not in water.

Alkynes are more reactive than usual hydrocarbons. For example, they are more reactive than alkenes in many reactions. If the alkyne is at the end of a molecule, it is easy to remove the proton with a strong base. Then, the alkyne can be used in addition reactions. For example, it can be added to a ketone. Alkynes are also easy to reduce to double bonds. They can be made into both trans and cis double bonds. Alkynes are also used a lot in pericyclic reactions.


Alkynes have a 180 degrees angle between the two carbon atoms. For this reason, they do not like to be in a cyclic compound. Some examples of alkynes are shown below.

Alkyne General Formulae V.2
Examples of alkynes

Images for kids

See also

Kids robot.svg In Spanish: Alquino para niños

Black History Month on Kiddle
Renowned African-American Artists:
Selma Burke
Pauline Powell Burns
Frederick J. Brown
Robert Blackburn
kids search engine
Alkyne Facts for Kids. Kiddle Encyclopedia.