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Which of the following has thelowest boi...

Which of the following has thelowest boiling point?

A

`NH_(3)`

B

`PH_(3)`

C

`AsCl_(2)`

D

`SbH_(3)`

Text Solution

Verified by Experts

The correct Answer is:
2
`PH_(3)` has lower boiling points than `NH_(3)` as it can't exhibit (like`NH_(3)`) intermolecular hydrogen bonding. It also has lower boiling point relative to other Group `15` hydrides as it has lower molecular mass relative to them .Correct order of boiling points is
`PH_(3) lt AsH_(3) lt NH_(3) lt SbH_(3) lt BiH_(3)`
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R SHARMA-THE P BLOCK ELEMENTS-QUESTION BANK
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  2. Oxygen will directly react with each of the following elements except

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  3. Which of the following has thelowest boiling point?

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  4. Which of the following is true for white and red phosphours except tha...

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  5. Which of the following is a noncombustible hydride?

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  6. Which of the following hydries has the highest dipole moments?

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  7. The species CO, CN^(-),and NO^(+) which are isoelectronic with N(2), a...

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  8. Which of the following is an exothermic compound?

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  9. Combustion of hydrazine produces

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  10. Which of the following reactions are feasible for hydrazine?

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  11. Which of the following is correct for the azide (N(3)^(-)) ion?

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  12. The reaction between urea and nitrous acid produces

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  13. Which of the following nitrides exist as giant molecules?

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  14. Which of the following gases is evolved when urea is heated with NaOH?

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  15. NH(4)CI is used to clean metal surface because

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  16. In quantitative ananlysis ,ammonia is used to separate

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  17. which of the following reaction gives reasonably pure NO?

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  18. Which of the following allotropes of phosphorus is used in the manufac...

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  19. Yellow ammonium sulphide is obtained by passing H(2)S into

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  20. KIO(3) reacts with SO(2) in an acidic medium to produce.

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