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Why is H(3)PO(2) a stronger reducing age...

Why is `H_(3)PO_(2)` a stronger reducing agent than `H_(3PO_(3)` ?

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Two P-H bonds are present in `H_(3)PO_(2)` whereas `H_(3)PO_(3)` contains only one P-H bond.
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Account for the following : (i) Sulphur in vapour from exhibits paramagnetic behavious. (ii) SnCl_(4) is more covalent the SnCl_(2) . (iii) H_(3)PO_(2) is a stronger reducing agent then H_(3)PO_(3) .

Assign reason for the following : (i) H_(3)PO_(2) is a stronger reducing agent than H_(3)PO_(4) . (ii) Sulphur shows more tendency for catenation than oxygen. (iii) Reducing character increases from HF to HI.

H_(3)PO_(3) is

Why does H_(3)PO_(2) behave as reducing agent?

Why does H_(3)PO_(3) act as a reducing agent but H_(3)PO_(4) does not ?

Assertion : H_(3)PO_(2) has strong reducing property but H_(3)PO_(4) does not. Reason : P-OH bond present in H_(3)PO_(4) .

DINESH PUBLICATION-THE P-BLOCK ELEMENTS -Assignment
  1. Why is bond angle in PH(4)^(+) ion higher than in PH(3) ?

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  2. Why phosphorus is more reactive than nitrogen?

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  3. H(3)PO(3) is diprotic (or dibasic). Why ?

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  4. Which is a stronger reducing agent, SbH(3) " or " BiH(3) and why ?

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  5. Why is nitrogen (N(2)) much less reactive than phosphorus (P(4))

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  6. What happens when the following are heated ? (i) PCl(5) (ii) H(3)PO(...

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  7. Why does PH(3) have lower boiling point than NH(3) ?

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  8. Write main differences between the properties of white phospghorus and...

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  9. Why is PCl(5) molecule more covalent than PCl(3) molecule ?

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  10. The basicity of phosphorus acid (H(3)PO(3)) is ............ .

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  11. Why is H(3)PO(2) a stronger reducing agent than H(3PO(3) ?

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  12. The formation of ammonia by Haber's process is favoured by ………. pressu...

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  13. How does nitric acid react with (i) Copper (ii) Iron ? Give chemical e...

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  14. Describe the manufacture of sulphuric acid by contact process on the b...

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  15. What happens when barium azide is heated ?

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  16. Why is NH(3) a good complexing agent ?

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  17. Copper turnings upon heating with conc. HNO(3) evolve a brown gas whic...

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  18. (a) Write the laboratory method for the preparation of HNO(3). (b) W...

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  19. Why is red phosphorus less reactive than white phosphorus ?

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  20. What is the basicity of H(3)PO(4) ?

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