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HI cannot be prepared by the action of c...

HI cannot be prepared by the action of conc. `H_(2)SO_(4)` on KI because

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HI initially formed being a strong reducing agent reduces `H_(2)SO_(4)` to `SO_(2)` while it itself gets oxidised to `I_(2)`.
`{:(" "H_(2)SO_(4) rarr H_(2)O + SO_(2) + [O]),(" "2HI + [O] rarr H_(2)O + I_(2)),(bar(2 HI + H_(2) SO_(4) rarr I_(2) + SO_(2) +2H_(2)O)):}`
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PRADEEP-P-BLOCK ELEMENTS -VERY SHORT ANSWER QUESTIONS
  1. (a) Name the halogen hydracid with highest bond energy. (b) When HI ...

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  2. KHF(2) is known but KHCl(2) is not known. Give reasons.

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  3. HI cannot be prepared by the action of conc. H(2)SO(4) on KI because

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  4. Arrange the following acids in the correct increasing order of their a...

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  5. Which of the hydracids of halogens reacts with glass ?

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  6. Give an example of a disproportionation reaction of F(2) ?

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  7. Name the halogen which forms only one oxo acid and also write the form...

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  8. Which one among the following is the strongest oxidizing agent ? ClO(...

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  9. With what neutral molecule is CIO^(ө) isoelectronic?

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  10. Which neutral molecule would be isoelectronic with CIO^(-) ?

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  11. Iodine forms I(3)^(-) but F(2) does not form F(3)^(-) ions. Why ?

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  12. Can FCl(3) exist ? Comment.

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  13. IF(7) exists but BrF(7) does not, why ?

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  14. Write two names of interhalogen compounds having sp^(3)d^(2) hybridiza...

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  15. Noble gases are monoatomic in nature. Explain.

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  16. Why does argon not form diatomic molecules like oxygen and nitrogen ?

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  17. Name the noble gas which is obtained from .(86)^(226)Ra. Write its mai...

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  18. Why do boiling points of noble gases increase from helium to radon ?

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  19. Which compound led to the discovery of compounds of noble gases ?

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  20. Complete the following : XeF(2) + PF(5) rarr

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