Tetrafluoroethane, C2F4H2, is one of the compounds contributing to global warming. This compound contains

C2F4H2 molecules.

Explanation:

the compound is organic compound and the carbons are 2 and the fluorines 4 and the hydrogens are 2

here the carbon and the hydrogens having the + 1 oxidation states

the fluorine is having the oxidation number - 4

so the moloecule contains the no ions and it contains the C2F4H2 molecules

answer = > C2F4H2 molecules