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The least stable hydride of 15th group e...

The least stable hydride of 15th group elements is

A

`NH_(3)`

B

`PH_(3)`

C

`AsH_(3)`

D

`BiH_(3)`

Text Solution

Verified by Experts

The correct Answer is:
D
Stability decreases down the group because size of central atom increases and its tendency to form covalent bond with small atom decreases.
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MODERN PUBLICATION-CHEMISTRY OF P - BLOCK ELEMENTS-Multiple Choice Questions (Level - II) (Comprehensive Qs)
  1. The correct order of increasing bond angles in the following species i...

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  2. The paramagnetic oxides of nitrogen are

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  3. The least stable hydride of 15th group elements is

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  4. When Br(2) is treated with aqueous solutions of NaF, NaCl and NaI sepa...

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  5. Which of the following statements is not valid for oxoacids of phospho...

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  6. When Cl(2) reacts with hot and concentrated soldium, the oxidation num...

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  7. Excess of PCl(5) reacts with conc. H(2)SO(4) giving

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  8. The oxoacid of sulphur that contains a lone pair of electrons on sulph...

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  9. The correct order of acidic stength is :

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  10. The number of sigma - bonds in P4O(10) is :

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  11. H(3)BO(3) is :

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  12. Among Al(2)O(3), SiO(2),P(2)O(3) and SO(2), the correct order of acid ...

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  13. The correct order of bond angle (smallest first) in H(2)S, NH(3), BF(3...

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  14. Which one of the following has the regular tetrahedral structure ?

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  15. The number of hydrogen atoms attached to phsophorus atom in hypophosph...

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  16. The correct order of thermal stability of hydrogen halides (H-X) is :

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  17. In silicon dioxide:

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  18. The structure of dibroane (B(2)H(6)) contains :

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  19. Which reaction indicates the oxidising behaviour of H(2) SO(4)

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  20. A metal M forms chlorides in its +2 and +4 oxidation states. Which of ...

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