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Xenon hexa fluoride reacts with potassiu...

Xenon hexa fluoride reacts with potassium fluoride to yield

A

`[XeF_(4)]^(2+) [KF_(3)]^(2-)`

B

`K^(+) [XeF_(7)]^(-)`

C

`[XeF_(5)]^(+) [KF_(2)]^(-)`

D

`XeF_(4)`

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The correct Answer is:
B
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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.

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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 number of lone pairs and bond pairs of electrons around Xe in XeOF_(4) respectively are

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 ?

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NARAYNA-18TH GROUP ELEMENTS-LEVEL - VI
  1. When PtE(6) vapour mixed with an equal volume of Xe, the gases combine...

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  2. (A)+SbF(5)to[XeF(3)]^(+)[SbF(6)]^(-) Compound (A) is

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  3. Xenon hexa fluoride reacts with potassium fluoride to yield

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  4. Total number of lone pairs on Xe in XeF(2), XeO(3)F(2), XeF(4), XeF(6)...

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  5. Which is/are hydrolysed by water ?

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  6. Which of the following pairs of Xenon compounds and their structure, h...

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  7. Thermal decomposition product(s) of XeF(2) are:

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  8. In XeO(3) and XeF(6) the oxidation state of Xe is

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  9. Asseration: The first real compound of the noble gases in 1962 "was" X...

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  10. Asseration: The first real compound of the noble gases in 1962 "was" X...

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  11. The noble gases have closed-shell electronic cordigaration and are mon...

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  12. The noble gases have closed-shell electronic cordigaration and are mon...

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  13. The noble gases have closed-shell electronic configuration and are mon...

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  14. The chemical reactivity of noble gases involves the loss of electrons ...

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  15. The chemical reactivity of noble gases involves the loss of electrons ...

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  16. The chemical reactivity of noble gases involves the loss of electrons ...

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  17. If the electron pair forming a bond between two atoms and B is not in ...

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  18. Match the following :

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  19. XeF(n) dissolves in HF according to the reaction xeF(n) +HF rarr [XeF(...

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  20. Number of lone pair of electrons in XeF(4) is

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