Which of the following compounds is exceptionally stable for steric reasons?

Options

A. `SF_(4)`
B. `TeF_(6)`
C. `SF_(6)`
D. `SeF_(6)`

Answer

3

Explanation

Sulpher hexafluoride `(SF_(6)` which contains`6-`valent sulpher is chemically intert towards fused alkali and oxygen. Because of its inertness and good dielectric properties it is used as a gaseous insulator in high voltage generators.
However, the very inertness of `SF_(6)` makes ot a particular problem in the context of climate impact. The gas absorbs radiation throughout much of hte otherwise transparent part of the infrated region int he atmsophere. As a result ,it is anextraordinary effectives greenhouses gas, `1` tonnes of `SF_(6)` being equivalent to `23,900` tonnes of `CO_(2)` in terms of infrared absoption.