Practice!

Sample Problem

True or False:

All of the following compounds are examples of alkanes:

i.

ii.

iii.

Solution

Alkanes are hydrocarbons (molecules composed of only carbon and hydrogen) that consist only of single bonds. Alkane names end in –ane. CH4 is methane, C2H6 is ethane, and C3H8 is propane, so they are all alkanes because they are bonded exclusively with single bonds.