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Both PH(3) and NH(3) are Lewis bases, bu...

Both `PH_(3) and NH_(3)` are Lewis bases, but basic strength of `PH_(3)` is less than that of `NH_(3)`. Explain

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N' atom of `NH_(3)` or 'P' atom of `PH_(3)` has a lone pair of electrons available for donation. Hencce `NH_(3) and PH_(3)` are Lewis bases. The electron pair density on a larger 'P' atom is less than that of smaller 'N' atom. Hence `PH_(3)` is a weaker base
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RESONANCE-NITROGEN & OXYGEN FAMILY-Exercise 1
  1. What happens when phosphine is absorbed in mercuric chloride solution ...

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  2. On being slowly passed through water, PH(3) forms bubbles but NH(3) di...

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  3. How is hydrazine prepared ?

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  4. Both PH(3) and NH(3) are Lewis bases, but basic strength of PH(3) is l...

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  5. In the preparation of P(4)O(6), a mixture of N(2) and O(2) is used rat...

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  6. A compound of 15^(th) group element is used as a fast drying agent in ...

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  7. Write the structures of the oxides: N(2)O(3), N(2)O(5)

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  8. Why does NO(2) dimerise ?

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  9. In the manufacture of sulphuric acid by the contact process, sulphur t...

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  10. How are SO(2) Cl(2).SO(3) and SO(2) obtained from sulphuric acid ?

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  11. Sulphur on oxidation with hot sulphuric acid gives :

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  12. Pentahalides of phosphorus are known, but not pentahydride. Why ?

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  13. A compound 'X' which is a yellowish white powder is prepared by the re...

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  14. Which hydride of the oxygen family shows the lowest boiling point ?

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  15. What happens when (A) PCl(5) is heated (b) PCl(5) is reacted with ...

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  16. Why does PCl(3) fume in moist air ?

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  17. Complete and balance the following : (i)P(4)O(10)+PCl(5)to (ii)NH(3)...

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  18. NAHSO(3) + [X] ("excess") + H(2)O rarr NaHSO(4) + HI [X] + Na(2)S(2)...

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  19. Identify the product of the given reaction: AgBr + 2Na(2)S(2) O(3) r...

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  20. A and B are elements with atomic numbers 16 and 17. Write different co...

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