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Explain why Hydrogen fluoride is a wea...

Explain why
Hydrogen fluoride is a weaker acid than hydrogen chloride in aqueous solution.

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Because of smaller atomic size of `F^-` as compared to `CI^-` the bond dissociation energy of H-F bond is much higher than that of H-Cl bond. As a result, in aqueous solution, H-Cl bond can break more easily to form `H^+` ion than H-F bond. Thus, hydrogen fluoride is a weaker acid than hydrogen chloride in aqueous solution.
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BETTER CHOICE PUBLICATION-THE P-BLOCK ELEMENTS-QUESTION BANK
  1. Fluorine exhibits only - 1 oxidation state whereas other halogens exhi...

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  2. Explain why Most metal fluoride are ionic in nature than metal chlo...

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  3. Explain why Hydrogen fluoride is a weaker acid than hydrogen chlorid...

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  4. Why are halogens strong oxidising agents?

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

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  6. Write the reactions of F2 and Cl2 with water.

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

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

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  9. Write the balanced chemical equation for the reaction of CI2 with hot ...

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  10. Write the balanced chemical equation for the reaction of CI2 with hot ...

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  11. Write the balanced chemical equation for the reaction of CI2 with hot ...

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  12. Anita coloured 3/8 of the circle with yellow colour and 4/8 of the cir...

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  13. Name two poisonous gases which can be prepared from chlorine gas.

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  14. Give the reason for bleaching action of Cl2.

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  15. Bleaching of flowers by chlorine is permanent while that by sulphur di...

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

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  17. Write balanced equations for the following: NaCl is heated with sulphu...

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  18. Write balanced equations for the following: Chlorine gas is passed int...

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  19. Name the different oxoacids of halogens and draw their structure.

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  20. Explain why fluorine forms only one oxoacid, HOF.

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