Which compound is a saturated hydrocarbon?

Question

Which compound is a saturated hydrocarbon?

2-octene

chlorobenzene

cyclobutene

3-methylhexane

1-butyne

Answer 1

The definition of saturated hydrocarbons is that they have only single bonds between the carbon atoms. That means no double or triple bonds. You can tell simply by the name because double bonds are named with -ene and triple bonds are named with -yne. All the names above have an -ene or -yne except for one.

Answer 2

3-methylhexane.

All the other compounds alkenes or alkynes (their names end with ene or yne) meaning they have double or triple bonds between some carbons rather than bonding with hydrogens and thus, are unsaturated to some degree.

the methylhexane is an alkane and has only single bonds between carbon atoms and they are bonded to the maximal number of hydrogens possible (ie saturated).

Hope this helps!