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Explain the following giving an appropri...

Explain the following giving an appropriate reason in each case.
(i) `O_(2)` and `F_(2)` both stabilize higher oxidation states of metals but `O_(2)` exceeds `F_(2)` in doing so.
(ii) Structure of Xenon fluorides cannot be explained by Valence Bond approach.

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The correct Answer is:
(i)It is due to higher lattice energy of oxides as compared to fluorides as oxide ion is dinegative whereas fluoride ion is mononegative.
(ii)It is because Xe is noble gas and has lone pair of electrons in its d-orbitals.Size of 5d orbitals in Xe is large enough for effective overlapping. 5p and 5d orbitals of Xe differ by `960kJ "mol"^(-1)`, that in `sp^(3)d` hybridisation, contribution of 5d orbital is objectionable.
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RESONANCE ENGLISH-P BLOCK ELEMENTS-Exercise 3 part-3
  1. What happen when Cl(2) is passed through a hot concentrated solution o...

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  2. How would you account for the following ? (i)The lower oxidation sta...

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  3. Write chemical equations for the following processes : (i) Chlorin...

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  4. Explain why the electrons gain enthalpy of fluorine is less negative t...

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  5. Draw the structures of the following molecules : (i) XeF(4) (ii) B...

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  6. F(2) is a stronger oxidising agent than Cl(2)

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  7. The majority of noble gas compounds are those of xenon. Explain.

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  8. No chemical compound of helium is known.

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  9. XeF(2) has linear structure and not a bent structure , Given reason .

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  10. Why fluorine never acts as the central atom in polyatomic interhalogen...

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  11. (a) (i) Complete the following chemical equations : (i)NaOH((aq))+...

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  12. Why fluorine does not exhibit any positive oxidation state?

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  13. Explain the following : (a) The electron gain enthalpy with negative...

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  14. Draw the structure of XeF(2)

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  15. (a) Account for the following : (i) The acidic strength decreases i...

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  16. (a) what happens when (i) Chlorine gas is passed though a hot conc...

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  17. Explain the following giving an appropriate reason in each case. (i)...

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  18. (a) Complete the following chemical equations : (i) NaOH + Cl(2) rar...

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  19. (a)Draw the molecule structure of the following compounds : (i)N(2)O...

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  20. Account for the following : (i) Helium is used in diving apparatus. ...

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