To prepare XeF6 at 573 K, 60-70 atm pressure, the ratio of xenon and fluorine used is :
Xenon forms three binary fluorides XeF2, XeF4 and XeF6. All the three fluorides are colourless crystalline solids sublimating at 295K. They are powerful fluorinating agents and they are readily hydrolysed by water. XeO3 is a colorless explosive solid acid, prepared by