Saved Bookmarks
| 1. |
Perfluorocarbons are remarkable stable, why? |
|
Answer» Solution :The prefix per implies that all the HYDROGEN atoms of a particualr hydrocarbon have been replaced by F atoms. For example. `underset("Perfluorooctane")(CF_(3)(CF_(2))_(6)" or "CF_(3)-CF_(2)-CF_(2)-CF_(2)-CF_(2)-CF_(2)-CF_(2)-CF_(2)`. Since F atom is strongly electronegative and have a very high negative electron gain enthalpy, `C-F` bond is of polar nature. with the increase in the number of F atoms around the CARBON atom, the MAGNITUDE of `+delta` charge on it increases and it acquires more electrostatic force of attraction of `delta`-charge on F atoms. As a result, strenlth of `C-F` bond increases and perfluorocarbons become QUITE stable as well as inert. |
|