Respuesta :
Answer:
The correct answer is: c) Dimethyl ether: methoxyethane; Dimethylacetylene: 2-methylbut-1-yne; Cis-1,2-dichloro-1,2-difluoroethene: cis-1,2-dichloro-1,2-difluoroethene
Here's why each option is correct or incorrect:
a) Incorrect:
Dimethyl ether: methoxyethane is correct.
Dimethylacetylene: 1-methylbut-1-yne is incorrect. The correct name is 2-butyne. This is because the triple bond takes priority in numbering, and the methyl group is attached to the second carbon.
Cis-1,2-dichloro-1,2-difluoroethene: This is correct.
b) Incorrect:
Dimethyl ether: methoxyethane is correct.
Dimethylacetylene: 2-methylbut-1-yne is correct as explained above.
Cis-1,2-dichloro-1,2-difluoroethene: This is correct.
c) Correct:
Dimethyl ether: methoxyethane is correct.
Dimethylacetylene: 2-methylbut-1-yne is correct as explained above.
Cis-1,2-dichloro-1,2-difluoroethene: This is correct.
d) Incorrect:
Dimethyl ether: methoxyethane is correct.
Dimethylacetylene: 1-methylbut-1-yne is incorrect as explained above.
Cis-1,2-dichloro-1,2-difluoroethene: trans-1,2-dichloro-1,2-difluoroethene is incorrect. The given name specifies the "cis" configuration, meaning the two chlorine and fluorine atoms are on the same side of the double bond.
Therefore, option c) provides the correct IUPAC names for all three compounds.
Explanation:
