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which of the follwing hydrides of Group ...

which of the follwing hydrides of Group `15` elements has the highest melting point?

A

`SbH_(3)`

B

`AsH_(3)`

C

`PH_(3)`

D

`NH_(3)`

Text Solution

Verified by Experts

The correct Answer is:
4
Order of melting point is
`NH_(3)(195.2K) gt PH_(3)(139.5K) lt AsH_(3)(156.7K) lt SbH_(3)(185K)` or `NH_(3) gt SbH_(3) gt AsH_(3) gt PH_(3)`
Unlike other hydrides, molecules of `NH_(3)` are associated throughly hydrogen bonding. They are also efficiently packed.
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R SHARMA-THE P BLOCK ELEMENTS-Follow-up Test 2
  1. The atomic number of Nis 7, the atomic number of fourth member of Grou...

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  2. The ground state electronic configuration of bismuth (Z=83) is

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  3. convalent and ionic (in a particular state )radii increase in size dow...

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  4. Ionization enthalpy decreases down the group due to gradual increases ...

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  5. Which of the following Group 15 elements have same pauling's electrone...

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  6. Which of the following elements from amphoteric oxides?

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  7. Which of the following solids sublimes on heating?

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  8. Which of the following Group 15 elements do not show allotropy?

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  9. A very wide range of oxidation states is shown by the element

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  10. The elements that has the maximum tendency to show the inert pair effe...

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  11. The oxidation state of -3 is least stable in

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  12. Which of the following are ionic compounds?

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  13. Which of the following compounds are ionic ? (i)Li(3)N, (ii) Be(3)N(...

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  14. Which of the following statement is correct regarding the nitrogen mol...

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  15. Which of the following species are isoelectronic with N(2) molecule?

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  16. The maximum covalency of nitrogen is

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  17. Nitrogen has unique ability to form strong

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  18. which of the following elements exhibits the strongest tendency for ca...

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  19. which of the follwing hydrides of Group 15 elements has the highest me...

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