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Which one of the following does not exis...

Which one of the following does not exist ?
`(i) XeOF_(4) (ii) NeF_(2) (iii) XeF_(2) (iv) XeF_(6)`.

Text Solution

Verified by Experts

`NeF_(2)` does not exist because the element Ne(Z=10) with `1s^(2)2s^(2)2p^(6)` does not have vacant 2d orbitals. As such there is no scope of any electron promotion even by a highly electronegative element.
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DINESH PUBLICATION-THE P-BLOCK ELEMENTS -N.C.E.R.T. Exercise
  1. The catalyst used in the manufacture of H(2)SO(4) by contact process i...

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  2. How is SO(2) an air pollutant ?

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  3. Why are halogens strong oxidising agents ?

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  4. Explain why does fluorine form only one oxoacid (HOF).

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  5. Explain why inspite of nearly the same electronegativity, nitrogen for...

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  6. Write two uses of ClO2.

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  7. Why are halogens coloured?

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  8. Write redox reactions between fluorine and water.

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  9. How can you prepare Cl2 from HCl and HCI from Cl2? Write reactions onl...

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  10. What inspired N. Bartlett for carrying out reaction between Xe and PtF...

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  11. What are the oxidation states of phosphorus in the following: (i)H(3...

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  12. Write balanced equation for the following: (i). NaCl is heated with ...

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  13. Xenon does not form fluorides such as XeF(3) and XeF(5). Explain.

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  14. With which neutral molecule is ClO^(-) isoelectronic ? Is this molecul...

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  15. How are XeO(3) and XeOF(4) prepared ?

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  16. Arrange the following in the order of property indicated for each set:...

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  17. Which one of the following does not exist ? (i) XeOF(4) (ii) NeF(2) ...

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  18. Give the formula and describe the structure of a noble gas species whi...

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  19. Why do noble gases have comparatively large atomic sizes?

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  20. List the uses of neon and argon gases.

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