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Why is the bond angle in PH(3) molecule ...

Why is the bond angle in `PH_(3)` molecule lesser than that in `NH_(3)` molecule?

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Due to greater repulsion in the shared pairs of electrons around nitrogen than around phosphorus atom.
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DINESH PUBLICATION-THE P-BLOCK ELEMENTS -Assignment
  1. Why is Bi(V) a stronger oxidant than Sb(V) ?

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  2. Phosphorus shows greater tendency for catenation than nitrogen. Why ?

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  3. Why is the bond angle in PH(3) molecule lesser than that in NH(3) mole...

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  4. All bonds in the molecule of PCl(5) are not equivalent. Explain.

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  5. Why is NH(3) a stronger base than PH(3) ?

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  6. In the structure of HNO(3), why is N-O bond (121 pm) shorter than N-OH...

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  7. H(3)PO(2) " and " H(3)PO(3) act as good reducing agents while H(3)PO(4...

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

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  9. Why phosphorus is more reactive than nitrogen?

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  10. H(3)PO(3) is diprotic (or dibasic). Why ?

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  11. Which is a stronger reducing agent, SbH(3) " or " BiH(3) and why ?

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  12. Why is nitrogen (N(2)) much less reactive than phosphorus (P(4))

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  13. What happens when the following are heated ? (i) PCl(5) (ii) H(3)PO(...

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  14. Why does PH(3) have lower boiling point than NH(3) ?

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  15. Write main differences between the properties of white phospghorus and...

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  16. Why is PCl(5) molecule more covalent than PCl(3) molecule ?

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  17. The basicity of phosphorus acid (H(3)PO(3)) is ............ .

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  18. Why is H(3)PO(2) a stronger reducing agent than H(3PO(3) ?

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  19. The formation of ammonia by Haber's process is favoured by ………. pressu...

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  20. How does nitric acid react with (i) Copper (ii) Iron ? Give chemical e...

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