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Account for the following: Tendency t...

Account for the following:
Tendency to show -2 oxidation state diminishes from sulfur to polonium in group 16.

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Tendency to show-2 oxidation state decreases from sulfur to polonium because of increase in atomic size and decrease in electronegativity.
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ICSE-P-BLOCK ELEMENTS-EXERCISE (PART-II)(DESCRIPTIVE QUESTIONS)(VERY SHORT ANSWER QUESTIONS)
  1. What type of hybridization is associated with N in NH3 ? What is th...

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  2. The bond energy of fluorine is more than that of chlorine.

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  3. Account for the following: Tendency to show -2 oxidation state dimi...

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  4. Which is the strongest oxidising agent among CIO(4)^(-),BrO(4)^(-) an...

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  5. Why is H2S more acidic than H2O ?

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  6. Which type of hybridisation explains the trigonal bipyramidal shape of...

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  7. Draw the structure of BrO(4)^(-)

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  8. Whys is F(2) a stronger oxidising agent than Cl(2) ?

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  9. Write the chemical equation for the reactions which occur when sodium ...

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  10. Draw the structure of XeF4 molecule.

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  11. Complete the following chemical equation : XeF4 + H2O rarr

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  12. Write one chemical equation to show that chlorine gas can be obtained ...

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  13. Write one chemical equation to show that SO2 acts as a reducing agent...

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  14. Write one chemical equation that conc. H2SO4 is a strong oxidising age...

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  15. Give a chemical equation or name of the reaction to show that sodium c...

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  16. Find the oxidation number of sulfur in peroxomono-sulfuric acid.

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  17. Write the formula of the noble gas species that is isostructural with ...

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  18. Draw the structure of peroxodisulfuric acid.

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  19. Which is more stable PCl5 or PCl3 ?

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  20. Write the structural formula of PCl5(s).

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