Xenon Fluorides are best stored in quartz containers

Discussion Forum : P-block Group 18 - Noble Gases

Question - Xenon Fluorides are best stored in quartz containers – True or False?

Options:

A . True

B . False

C . Both a and b are correct.

D . Helium is peculiarly attracted only to black holes.

Answer: Option B
:
B
Xenon Fluorides are stored in Nickel or Monel containers. They cannot be stored in glass containers or quartz containers as they react with

S i O_{2}

as:

2 X e F_{6} (s) + S i O_{2} (s) \to S i F_{4} (s) + 2 X e O F_{4} (s)

2 X e O F_{4} (s) + S i O_{2} (s) \to S i F_{4} (s) + 2 X e O_{2} F_{2} (s)

2 X e O_{2} F_{2} (s) + S i O_{2} (s) \to S i F_{4} (s) + 2 X e O_{3} (s)

Also, the first two reactions may be used to prepare Xenon oxyfluorides. Further, Xenon oxyfluorides can also be prepared by the controlled, partial hydrolysis of Xenon fluorides.
Hydrolysis of

X e F_{6}

is a multi-step process. Initially Xenon oxide tetrafluoride –

X e O F_{4}

is formed.

X e F_{6} (s) + H_{2} O (l) \to X e O F_{4} (l) + 2 H F (l)

Followed by

X e O F_{4} (l) + 2 H_{2} O (l) \to X e O_{3} (s) + 4 H F (l)

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Discussion Forum : P-block Group 18 - Noble Gases

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