Question

Which of the following fluorides of oxygen do not exist?

• A. XeF4
• B. XeF6
• C. XeF3
• D. XeF2

Answer 1

Answer: (C)

XeF3

Answer 2

Oxygen doesn't form fluorides by itself. However, the noble gas xenon (Xe) can form a number of compounds with fluorine. Among the given options:
(A) $(XeF_4)$: Xenon tetrafluoride is a known compound and does exist.
B) $(XeF_6)$: Xenon hexafluoride is also a known compound and exists.
C) $(XeF_3)$: Xenon trifluoride is not known to exist. The possible fluorides of xenon are $(XeF_2), (XeF_4), and (XeF_6)$
D) $(XeF_2)$: Xenon difluoride is a known compound and does exist.
Therefore, the fluoride of xenon that does not exist is: C) $XeF3$