Answer;
Sulfur hexafluoride
Explanation;
-Sulfur hexafluoride (SF6) is an inorganic, colorless, odorless, and non-flammable greenhouse gas.
-Sulfur hexafluoride has an octahedral geometry, consisting of six fluorine atoms attached to a central sulfur atom. It is a hypervalent molecule.
-Being a nonpolar gas, it is poorly soluble in water but soluble in nonpolar organic solvents. It is generally transported as a liquefied compressed gas.
-It is used in the electrical industry as a gaseous dielectric medium for high-voltage circuit breakers, switchgear, and other electrical equipment, often replacing oil filled circuit breakers (OCBs) that can contain harmful PCBs.