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Basic strength order NH(3) gtPH(3) gtAsH...

Basic strength order `NH_(3) gtPH_(3) gtAsH_(3) gtBiH_(3)` .

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The elecron pair density on the smaller 'N' atom is more than the larger 'P' atom. Electron donation is more for 'N' of `NH_(3)` compared to 'P' of `PH_(3)`. Therefore `PH_(3)` is a weaker Lewis base than `NH_(3)`
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Asseration: The abnormality in b.pt. of NH_(3) in hydrides of N- family is due to H- bonding. Reason: The boiling point of hydrides of N- family shows the order: NH_(3)gtBiH_(3)gtSbH_(3)gtAsH_(3)gtPH_(3) .

Which of the following orders is correct? (1) SbH_(3)gt NH_(3) gt AsH_(3) gt PH_(3)-" Boiling Point" (2) NH_(3) gt PH_(3) gt AsH_(3) gt SbH_(3)-" Thermal Stability" (3) NH_(3) gt PH_(3) gt AsH_(3) gt SbH_(3) - "Basic Character" (4) NH_(3) gt PH_(3) gt AsH_(3) gt SbH_(3)- "Bond Angle"

Comparing basic strength of NH_(3), CH_(3)NH_(2) and C_(6)H_(5)NH_(2) it may be concluded that:

Compare the basic strength of following (a)NH_(3)(b)PH_(3)(c)AsH_(3)(d)SbH_(3)(e) BiH_(3)

Arrange the following in increasing order of the property indicated : (a) H_(3)PO_(3), H_(3)PO_(4), H_(3)PO_(2) (Reducing Character) (b) NH_(3), PH_(3), AsH_(3), SbH_(3), BiH_(3) (Basic Strength)

The decreasing order of melting points is NH_(3) gt (CH_(3))_(3) N gtPH_(3) .

NARAYNA-15TH GROUP ELEMENTS-EXERCISE - 4 (NCERT EXEMPLERS/HOTs)
  1. Basic strength order NH(3) gtPH(3) gtAsH(3) gtBiH(3) .

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  2. Nitrogen can be purified from the impurities of oxides of nitrogen and...

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  3. Very pure nitrogen can be obtained by :

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  4. When sodium is dissolved in liquid ammonia, a solution of deep blue co...

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  5. In Nitrogen family the H-M-H angle in the hydrides MH(3) gradually bec...

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  6. Gas obtained by heating a mixture of ammonium chloride and slaked lime...

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  7. Ammonia is not a product in the

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  8. Phosphine is not obtained by the reaction when

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  9. The bottle of liqure ammonia is cooled before opening the cork bec...

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  10. The dipoles moment of NF(3) is less than NH(3) because

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  11. Ammonia can not be obtained by

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  12. The compound (SiH(3))(3)N is expected to be

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  13. The number of P-O-P bonds present in P(4)O(6) and P(4)O(10) are respec...

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  14. One of the acid listed below is formed P(2)O-(3) and the rest are form...

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  15. Group 15 of the periodic table consists of the elements N, P, As, Sb a...

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  16. The number of bond in P(4)O(10) is

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  17. The nitrate which when heated gives off a gas (or) a mixture of gases ...

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  18. In nitroprusside ion, the iron and NO exist as Fe(II) and NO^(+) rathe...

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  19. The correct order of bond angle of NO(2)^(+),NO(2) and NO(2)^(-) is

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  20. A tetra-atomic molecule (A) on reaction with nitrogen (I) oxide, produ...

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  21. Polyphosphates are used as water softening agents because they

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