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Why the basicity of all the acids of pho...

Why the basicity of all the acids of phosphorus is different?

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The structure of `H_2 PO_2` (hypophosphorus acid) is as shown in the Fig. The two hydrogen atoms bonded directly to phosphorus atom gives reducing character to `H_3 PO_2`. Due to the presence of only one P-OH bond, it is monobasic in nature.
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BETTER CHOICE PUBLICATION-THE P-BLOCK ELEMENTS-QUESTION BANK
  1. Explain why orthophosphorus acid, H3 PO3 is diprotic .

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  2. How do you account for the reducing behaviour of H3P02 on the basis of...

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  3. Why the basicity of all the acids of phosphorus is different?

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  4. Give the structure and basicity of H3PO4.

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  5. All the five bonds in PCl5 are not equivalent justify.

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  6. Draw the structure of PCl3.

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  7. Why are pentahalides more covalent than trihalides ?

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  8. Why does NO2 dimerise ?

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  9. Write two reactions of HNO3 with non-metals to show the oxidising char...

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  10. Explain the acidic character of Perchloric acid compared to sulphuric ...

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  11. Why white phosphorus is more reactive than red phosphorus?

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  12. What happens when ammonium nitrate is heated ?

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  13. What is laughing gas ?

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  14. Account for the following: The +2 oxidation state of lead is more stab...

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  15. Inert pair effect strongly exists in heavy p-block elements. Comment.

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  16. Why does R3 P=O exist but R3 N =O does not (R-alkyl group) ?

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  17. write the chemical equatikons when Ammonia reacts with aqueous FeCl3.

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  18. Write the chemical equations when Ammonia reacts with aqueous AlCl3.

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  19. Write the chemical equations when Ammonia reacts with aqueous CrCl3.

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  20. Write the chemical equations when Zinc reacts with dilute HNO3.

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