An organic molecule is a molecule that contains carbon. All of the following molecules contain carbon, so they are all organic molecules:

* Methane (CH4)

* Ethane (C2H6)

* Propane (C3H8)

* Butane (C4H10)

* Pentane (C5H12)

* Hexane (C6H14)

* Heptane (C7H16)

* Octane (C8H18)

* Nonane (C9H20)

* Decane (C10H22)