Step 1: Understand what an alkane is. Alkanes are a type of hydrocarbon, which means they are made up of hydrogen and carbon atoms.
Step 2: Know that alkanes can have different numbers of carbon atoms. For example, methane has 1 carbon, ethane has 2, propane has 3, and butane has 4.
Step 3: Identify the common uses of different alkanes. Some alkanes are used as fuels.
Step 4: Recognize that butane is a specific alkane that is often used in lighters because it is easy to store and ignites easily.
Step 5: Conclude that butane is the alkane used as a fuel in lighters.
