4. Alkanes and Cycloalkanes

Which of the following molecules is propyne?

Which of the following is the correct IUPAC name for a compound with a five-carbon chain containing a triple bond at carbon $1$, an isopropyl group at carbon $3$, a methoxy group and a methyl group both at carbon $4$, and the $\left(R\right)$ configuration at the stereocenter?

Which of the following lists contains the correct IUPAC systematic names for the three alkenes: ${\mathrm{CH}}_2={\mathrm{CH}}_2$, ${\mathrm{CH}}_3\mathrm{CH}={\mathrm{CH}}_2$, and ${\mathrm{CH}}_3\mathrm{CH}={\mathrm{CH}}_3$?

Which of the following is the correct IUPAC name for a compound with a six-carbon chain, a bromine substituent at carbon $4$, a methyl group at carbon $5$, a double bond between carbons $3$ and $4$ with $\left(E\right)$ configuration, and a triple bond at carbon $1$?

Which of the following is the correct IUPAC name for a compound with the structure: a four-carbon chain with a bromo substituent at carbon $2$, a phenyl group at carbon $3$, and both substituents having $S$ configuration at their respective stereocenters?

Which of the following best describes the product formed when ${\mathrm{Br}}_2$ is added to an alkene in the presence of light?

What is the correct IUPAC name for the compound with the condensed formula CH$3_{}$CH(${\mathrm{CH}}_3$)CH$2_{}$C(${\mathrm{CH}}_2$${\mathrm{CH}}_3$)$2^{}$CHO?

What is the correct IUPAC name for the following alkene: ${\mathrm{CH}}_2$=${\mathrm{CH}}_2$?

Which of the following is the correct structure for trans-3-methylcyclopentanecarbaldehyde?

Given the following structure, ${\mathrm{CH}}_3-\mathrm{CH}=\mathrm{CH}-{\mathrm{CH}}_2\mathrm{Br}$, name the alkene using only $E/Z$ designators to indicate stereochemistry.

What is the correct IUPAC name for the compound with the molecular formula $C_3{\mathrm{Cl}}_8$?

Which of the following is the correct IUPAC name for the compound with the structure ${\mathrm{CH}}_2={\mathrm{CH}}_2$?

Which of the following is the correct IUPAC name for a compound with a five-carbon chain containing a double bond between carbons $2$ and $3$, and an ethyl group attached to carbon $3$?

Which of the following is the correct IUPAC name for a compound with a six-carbon chain, a double bond starting at carbon $2$, a bromo substituent at carbon $6$, and methyl groups at carbons $2$ and $3$?

Which of the following is the correct IUPAC name for a compound with a seven-carbon chain, a carboxylic acid functional group, and a $\mathrm{tert}-\mathrm{butyl}$ group attached to carbon $2$?