Answer:
1) 1-Pentyne
2) But-2-yne
3) Ethyne
4) 1-Propyne
5) 1-Butyne
6) Pent-2-yne
Explanation:
1) The number of carbon on the longest chain = 5, (two carbon atoms between the triple bond) therefore the prefix is <em>pen-</em>
The functional group is the triple bond on the first carbon with the suffix <em>-yne</em>
The name of the compound is 1-Pentyne
2) There are 4 carbon atoms on the longest chain, therefore, the prefix is <em>but-</em>
The location of the triple bond functional group (suffix; <em>-yne</em>) is on the second carbon atom
Therefore, the name of the compound is But-2-yne
3) The triple bond functional group is between the only two carbon atoms, therefore, the name is Ethyne
4) The number of carbon atoms = 3, with a prefix <em>prop-</em>, and the functional group on the first carbon atom on the longest chain is the triple bond, with suffix <em>-yne</em>
Therefore, the name of the compound is 1-Propyne
5) The number of carbon atoms on the longest chain = 4, the prefix is <em>but-</em>
The location of the triple bond functional group (suffix<em> -yne</em>) is on the first carbon atom
Therefore, the name is 1-Butyne
6) The number of carbon atoms on the longest chain = 5, the prefix of the compound is <em>pen-</em>
The location of the triple bond functional group (suffix; <em>-yne</em>) is on the second carbon atom, therefore;
The name of the compound is Pent-2-yne
