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Why is Bi(V) a stronger oxidant than Sb(...

Why is Bi(V) a stronger oxidant than Sb(V)?

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As we go down a group, the stability of + 3 oxidation state increases as compared to +5 oxidation state due to inert pair effect. Therefore, Bi(V) will readily take up two electrons to change into Bi(III) and thus, behave as an oxidant. In the case of Sb(V), conversion from +5 state +3 state does not take place readily. Hence, Bi(V) is a stronger oxidant than Sb(V).
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KALYANI PUBLICATION-P-BLOCK ELEMENTS-EXERCISE (PART-II)(DESCRIPTIVE QUESTIONS)(VERY SHORT ANSWER QUESTIONS)
  1. Which is least basic ? SbH(3)PH3,NH3,AsH3

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  2. Draw the structure of XeF2 molecule.

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  3. Among the noble gases only xenon is well known to form chemical compou...

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  4. Assign reason for the following: In solid state, PCI5 , behaves as an ...

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  5. Why does PCI3 fume in moisture? Give reaction.

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  6. Complete the following reactions : (i) P4 + SOCl2 rarr

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  7. Complete the following reactions : (ii) CH3COOH + PCl5 rarr

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  8. Write balanced equation when ammonia is dissolved in water.

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  9. In which one of the two structures NO(2)^(+) and NO2^(-), the bond ang...

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  10. Why is the bond angle in PH3 molecule lesser than in NH3 molecule?

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

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  12. Why is Bi(V) a stronger oxidant than Sb(V)?

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  13. Why is red phosphorus less reactive than white phosphorus?

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  14. In the ring test for identification of nitrate ion, what is the formul...

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  15. Write the balanced equation for complete hydrolysis of XeF6.

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  16. Why does NO2 dimerize?

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  17. Draw the structure of O3, molecule.

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  18. Fluorine does not exhibit any positive oxidation state. Why?

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  19. Nitrogen is relatively inert as compared to phosphorus. Why.

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  20. Why are the two S–O bonds in SO2 molecule of equal strength ?

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