p-Block elementsMedium
Question
Select the correct statement(s) regarding the fluorides of xenon.
Options
A. All three fluorides are decomposed by water, XeF2 slowly and, XeF4 and XeF6 rapidly.
B.All three fluorides are powerful oxidising agents.
C.XeF4 and XeF6 can act as fluoride ion acceptors as well as fluoride ion donors.
D.All three fluorides are volatile, readily subliming at room temperature (298 K).
Solution
(A) 2XeF2 + 2H2O → 2Xe + 4HF + O2 .
6XeF4 + 12H2O → 4Xe + 2XeO3 + 24HF + 3O2 .
XeF6 + 6H2O → XeO3 + 6HF.
(B) Correct statement.
(C) XeF4 + NaF → Na+ [XeF5]-.
XeF4 + SbF5 → [XeF3]+ [SbF6]-.
Similarly XeF6 acts as F- donor and F- acceptor.
(D) Correct statement.
6XeF4 + 12H2O → 4Xe + 2XeO3 + 24HF + 3O2 .
XeF6 + 6H2O → XeO3 + 6HF.
(B) Correct statement.
(C) XeF4 + NaF → Na+ [XeF5]-.
XeF4 + SbF5 → [XeF3]+ [SbF6]-.
Similarly XeF6 acts as F- donor and F- acceptor.
(D) Correct statement.
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