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The xenon fluoride which acts as a fluor...

The xenon fluoride which acts as a fluoride ion acceptor with RbF is

A

`XeF_(2)`

B

`XeF_(4)`

C

`XeF_(6)`

D

Both (A) and (B).

Text Solution

Verified by Experts

The correct Answer is:
C
Only `XeF_(6)` acts as fluoride ion acceptor with alkali metal fluorides.
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The noble gases are chemically inert due to high ionization enthalpy, positive electron gains enthalpy and presence of completely filled orbitals. However, Xe forms a number of compounds such as XePtF_(6) XeF_(2), XeF_(4), XeF_(6) and a number of xenon oxides and oxy fluorides. Xenon fluorides react with fluoride ion acceptors such as PF_(5), AsF_(5), SbF_(3) etc. to form cationic species but with fluoride ion donors such as alkali metal fluorides they forms anionic fluoroanions. They are also hydrolysed by water but their reactivity increases with oxidation state of Xe. The shape and hybridisation of some Xenon oxygen fluorides are given. Select the wrong answer.

The noble gases are chemically inert due to high ionization enthalpy, positive electron gains enthalpy and presence of completely filled orbitals. However, Xe forms a number of compounds such as XePtF_(6) XeF_(2), XeF_(4), XeF_(6) and a number of xenon oxides and oxy fluorides. Xenon fluorides react with fluoride ion acceptors such as PF_(5), AsF_(5), SbF_(3) etc. to form cationic species but with fluoride ion donors such as alkali metal fluorides they forms anionic fluoroanions. They are also hydrolysed by water but their reactivity increases with oxidation state of Xe. Which of the following is not formed by Xe ?

The noble gases are chemically inert due to high ionization enthalpy, positive electron gains enthalpy and presence of completely filled orbitals. However, Xe forms a number of compounds such as XePtF_(6) XeF_(2), XeF_(4), XeF_(6) and a number of xenon oxides and oxy fluorides. Xenon fluorides react with fluoride ion acceptors such as PF_(5), AsF_(5), SbF_(3) etc. to form cationic species but with fluoride ion donors such as alkali metal fluorides they forms anionic fluoroanions. They are also hydrolysed by water but their reactivity increases with oxidation state of Xe. When XeF_(4) is treated with water, it forms ?

The noble gases are chemically inert due to high ionization enthalpy, positive electron gains enthalpy and presence of completely filled orbitals. However, Xe forms a number of compounds such as XePtF_(6) XeF_(2), XeF_(4), XeF_(6) and a number of xenon oxides and oxy fluorides. Xenon fluorides react with fluoride ion acceptors such as PF_(5), AsF_(5), SbF_(3) etc. to form cationic species but with fluoride ion donors such as alkali metal fluorides they forms anionic fluoroanions. They are also hydrolysed by water but their reactivity increases with oxidation state of Xe. The number of lone pairs and bond pairs of electrons around Xe in XeOF_(4) respectively are

The fluoride which does not exist is

S_(1): Argon is used in arc welding of metals or alloys to provide an inert atomosphere. S_(2):" XeF_(2),XeF_(4) and XeF_(6) are colourless crystalline solids and sublime readily at 298K . S_(3):XeF_(2),XeF_(4) and XeF_(6) are readily hydrolysed. S_(4): Xenon fluorides react with flourine ion acceptor to form cationic species and fluoride ion donors to form fluoro anions.