Question

Give the method of preparation of XeF₂.

Answer 1

Xenon difluoride (XeF₂) is made by heating a 1 : 3 mixture of fluorine and xenon at 675 K in a nickel container. In a U-tube, the resulting products are suddenly cooled (quenched) to 225 K. In approximately 8 hours, the reaction is finished.

\[\ce{Xe + F2 ->[675 K, Ni][(followed by quenching at 225 K)] XeF2}\]