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Why is the BiH(3) strongest reducing age...

Why is the `BiH_(3)` strongest reducing agent amongst all the hydrides of group 15 ?

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Bi-H bond length is the maximum among the hydrides of group 15 elements and bond dissociation enthalpy is the least. Therfore, `BiH_(3)` is the strongest reducing agent amongst all the halides of group 15 elements.
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Give reasons for the following: (i) Oxygen is a gas but sulphur is a solid. (ii) O_(3) acts as a powerful oxidising agent. (iii) BiH_(3) is the strongest reducing agent amongst all the hydrides of Groups 15 elements.

DINESH PUBLICATION-THE P-BLOCK ELEMENTS -Questions From Board Examinations
  1. Which allotropic form of sulphur is most stable ?

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  2. Why is bond angle in NH(4)^(+) ion higher than in NH(3) ?

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  3. Why is the BiH(3) strongest reducing agent amongst all the hydrides of...

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  4. Which poisonous gas is evolved when white phosphorus is heated with co...

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  5. (i) Which allotrope of phosphorus is more reactive and why ? (ii) Ho...

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  6. Give reason for the following : (i) Chlorine water loses its colour ...

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  7. Draw the structures of (i) H(2)S(2)O(8) (ii) XeO(4).

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  8. On heating copper turnings with conc. HNO(3), a brown coloured gas is ...

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  9. Give reasons : (i) PCl(5) is more volatile than PCl(3). (ii) O-O b...

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  10. Assign reason for the following : (i) H(3)PO(2) is a stronger reduci...

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  11. ON adding NaOH to ammonium sulphate, a colourless gas with pungent odo...

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  12. Considering the parameters such as bond dissociation enthalpy, electro...

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  13. Write the conditions to maximize the yield of H(2)SO(4) by contact pro...

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  14. Arrange the following in increasing order of the property indicated : ...

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  15. (a) Write the laboratory method for the preparation of HNO(3). (b) W...

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  16. Describe the manufacture of sulphuric acid by contact process on the b...

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  17. (i) Why is concentrated H(2)SO(4) always diluted by adding H(2)SO(4) t...

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  18. What happens when (i) Orthophorus acid is heated ? (ii) XeF(6) und...

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  19. Write the disproportionation reaction of that oxoacid of nitrogen in w...

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  20. Electron gain enthalpies of halogens are largely negative. Explain.

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