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Halogens have maximum negative electron ...

Halogens have maximum negative electron gain enthalpy in the respective periods of the periodic table. Why ?

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MODERN PUBLICATION-p-BLOCK ELEMENTS-EXERCISE
  1. Why is H2O a liquid and H2S a gas?

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  2. Which formula of noble gas species is isoelectronic with IBr2^- ?

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  3. Halogens have maximum negative electron gain enthalpy in the respectiv...

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  4. Write the IUPAC name of : [Co Cl (NH3)5]^(+2)

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  5. Write the IUPAC name of : [Pt (en)2 Br2 ]

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  6. Write the IUPAC name of : [Co Cl3 (NH3)3]

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  7. Give reasons for the following: Bond enthalpy of F2 is lower than that...

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  8. PH3 has lower boiling point than NH3. Why?

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  9. Write the IUPAC name of : [Fe (EDTA) ]^(-)

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  10. Draw the structures of the following molecule : (HPO3)3

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  11. Draw the structures of the following molecule : XeF4

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  12. Why is helium used in diving apparatus?

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  13. Explain the following : Fluorine does not show positive oxidation st...

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  14. Account for the following: Oxygen shows catenation behaviour less than...

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  15. Draw the molecular structure of the following : XeF2

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  16. Draw the structures of the following molecule : H2S2O8

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  17. Draw flow chart for Haber's process fore the manufacture of ammonia.

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  18. Compounds of nitrogen, phosphorus and sulphur such as ammonia, phospho...

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  19. what is the contact process for the manufacture of sulphuric acid.

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  20. Write method of preparation of H2SO4 acid by Contact process.

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