Determine whether the given molecule is a haloarene, a haloalkane, or a haloalkene.

How many of the following systematic names are correct? Correct those that are misnamed.
(i) 2-ethylhept-3-yne
(ii) 2-methylpent-3-yne

How many of the following systematic names are correct? Correct those that are misnamed.
(i) 4-propylpent-2-yne
(ii) 2-chlorohept-4-yne

What is the appropriate systematic name of each compound?

Write IUPAC names for the following alkenes.

a. (CH₃CH₂)₂CH—CH₂—CH=CH₂
b. CH₃—CH₂—CH₂—C(CH₂)—CH₂—CH₂—CH₃

Give structural formulas of two different alkyne molecules that correspond to each of the following molecular formulas. C₄H₆, C₅H₆ and C₉H₁₂.

The following name of an organic compound needs to be corrected. Draw the structure accurately representing the incorrect name and determine the correct IUPAC name.

cis-2,6-dichloro-3-ethylhex-2-ene