The Alkynes Flashcards
How do the alkynes differ from the alkanes and the alkenes?
They contain a carbon-carbon triple bond i.e. they are highly unsaturated
What is the ending for each of the alkynes?
‘yne’
What is the general formula for the alkynes?
CnH2n-2 i.e. for every C there are two times the amount of H minus 2
What is the name of the only alkyne studied as part of the leaving cert course?
Ethyne
What is the molecular formula of ethyne?
C2H2
What is the old name for ethyne?
Acetylene
What is the structural formula of ethyne?
H-C (triple bond) C-H
What is the main use of ethyne/acetylene?
It is used in oxyacetylene welding and cutting
Why is ethyne/acetylene used in oxyacetylene welding and cutting?
When ethyne/acetylene is burned in controlled amounts of oxygen, temperatures in excess of 3000 degrees Celsius may be obtained
