The correct answer is B. hexane.
A hydrocarbon is an organic compound that consists only of hydrogen and carbon atoms. Hydrocarbons are classified into two main groups: aliphatic hydrocarbons and aromatic hydrocarbons. Aliphatic hydrocarbons are further classified into alkanes, alkenes, and alkynes.
Alkanes are saturated hydrocarbons, which means that they contain the maximum number of hydrogen atoms that can be bonded to carbon atoms. Alkanes are named according to the number of carbon atoms they contain. For example, ethane has two carbon atoms, propane has three carbon atoms, and butane has four carbon atoms.
The formula of hexane is C6H14. This means that hexane has six carbon atoms and fourteen hydrogen atoms. Hexane is an alkane because it is saturated and has the general formula CnH2n+2.
The other options are incorrect because they are not alkanes. Hexene is an alkene, which means that it has one or more double bonds between carbon atoms. Hexine is an alkyne, which means that it has one or more triple bonds between carbon atoms. Heptine is an alkene with seven carbon atoms.