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State why the boiling point of HF is ver...

State why the boiling point of HF is very high.

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Besides the van der Waals forces, HF can form intermolecular hydrogen bonds. This is due to the high electronegativity of F. This means more energy is needed to break the hydrogen bond as well as the van der Waals forces in HF and hence higher boiling point.
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ICSE-SAMPLE PAPER 2011-PART-II(SECTION-B)
  1. State why the boiling point of HF is very high.

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  2. Give the IUPAC names for the following : (i) Na(3)[AlF(6)] (ii) [C...

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  3. Give the IUPAC names of the following compound [Co(NH3)6]Cl3

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  4. For the complex ion of [Fe(CN)6]^(3-) : Show the hybridization diagr...

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  5. For the complex ion of [Fe(CN)6]^(3-) : Is it an inner orbital compl...

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  6. For the complex ion of [Fe(CN)6]^(3-) : State its magnetic property.

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  7. Give balanced chemical equations for the following: Chlorine gas i...

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  8. Give balanced chemical equations for the following: Sulphur dioxide...

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  9. Give balanced chemical equations for the following: Zinc is added ...

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  10. Iron is ferromagnetic in nature. Explain why.

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  11. The most common oxidation state exhibited by lanthanoids and actinoids...

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  12. State the common oxidation state of : Actinides

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  13. In a given transition series, there is no signifiecant change in the a...

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  14. Give reactions and the conditions required for preparation of the foll...

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  15. Give reactions and the conditions required for preparation of the foll...

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  16. Carry out the following conversions : Methyl chloride to acetic aci...

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  17. Carry out the following conversions : Benzene to benzoic acid.

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  18. Carry out the following conversions : Ethanol to acetone.

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  19. Deficiency of what vitamins will cause the following diseases : Nig...

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  20. The deficiency of which vitamin will cause the following diseases: S...

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  21. Give balanced equations for the following: Glycerol is heated with...

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