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PH(3) is a weaker base than NH(3) - Expl...

`PH_(3)` is a weaker base than `NH_(3)` - Explain.

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`PH_(3)` is a weaker base than `NH_(3)`.
`to` In `NH_(3)` nitrogen atom undergoes `"SP"^(3)` hybridisation and due to small size it has high electron density than in 'P' of `PH_(3)`.
`to` Due to large size of 'P' atom and availability of large surface area, lonepair of electron spread in `PH_(3)`. Hence `PH_(3)` is weaker base then `NH_(3)`.
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VIKRAM PUBLICATION ( ANDHRA PUBLICATION)-P-BLOCK ELEMENTS -GROUP 15 ELEMENTS (VERY SHORT ANSWER QUESTIONS)
  1. Explain why is NH(3) basic while "BiH"(3) is only feebly basic.

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  2. Arrange the hydrides of group - 15 elements in the increasing order of...

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  3. PH(3) is a weaker base than NH(3) - Explain.

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  4. A hydride of group -15 elements dissolves in water to form a bbasic so...

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  5. What happens when white phosphorus is heated with conc. NaOH solution ...

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  6. NH(3) forms hydrogen bonds but PH(3) does not - why ?

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  7. The HNH angle is higher than HPH, HAsH and HSbH angles - Why ?

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  8. How do calcium phosphide and heavy water react ?

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  9. Ammonia is a good complexing agent - Explain with an example.

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  10. A mixture of "Ca"(3)"P"(2) and "CaC"(2) is used in making Holme's sign...

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  11. Which chemical compound is formed in the brown ring test of nitrate io...

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  12. Give the resonating structures of NO(2) and N(2)O(5).

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  13. Why does R(3)P=O exist but R(3)B=O does not (R = alkyl group) ?

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  14. How is nitric oxide (NO) prepared ?

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  15. Give one example each of normal oxide and mixed oxide of nitrogen.

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  16. NO is paramagnetic in gaseous state but diamagnetic in liquid and soli...

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  17. Give an example of acidic oxide of phosphorus

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  18. Give an example of neutral oxide of nitrogen.

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  19. Explain the following reaction of alkali with red phosphrous.

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  20. Explain the following reaction between "PCl"(3) and H(3)PO(3).

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