A compound containing only carbon and hydrogen with no double bonds between atoms is classified as an alkane.

Here's why:

* Alkanes are hydrocarbons (compounds containing only carbon and hydrogen) with all single bonds between the carbon atoms. This results in a saturated structure, meaning there's no possibility for double or triple bonds.

* Alkenes contain at least one double bond between carbon atoms.

* Alkynes contain at least one triple bond between carbon atoms.