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For H(3)PO(3) and H(3)PO(4) the correct ...

For `H_(3)PO_(3)` and `H_(3)PO_(4)` the correct choice is

A

`H_(3)PO_(3)` is dibasic and reducing agent

B

`H_(3)PO_(3)` is dibasic and non - reducing

C

`H_(3)PO_(4)` is tribasic and reducing

D

`H_(3)PO_(4)` is tribasic and non - reducing.

Text Solution

Verified by Experts

The correct Answer is:
A
`H_(3)PO_(3)` has the structure,

It has two `O-H` bonds and hence, is dibasic.
Since it has one `P-H` bond, hence, it is reducing.
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MODERN PUBLICATION-CHEMISTRY OF P - BLOCK ELEMENTS-Multiple Choice Questions (Level - II) (Comprehensive Qs)
  1. Ozone gives brown colour with

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  2. The number of S-S bonds in sulphur trioxide trimer (S(3)O(9)) is

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  3. For H(3)PO(3) and H(3)PO(4) the correct choice is

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  4. Which of the following species has a linear shape ?

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  5. Among the following the pair in which the two species are not iso - st...

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  6. The correct order of acidic nature of oxides is in the order

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  7. Na(2)S(2)O(3) is oxidised by I(2) to

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  8. Which one statement about sulphur dioxide gas is incorrect?

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  9. The correct order of increasing bond angles in the following species i...

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  10. The paramagnetic oxides of nitrogen are

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

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

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

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

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

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

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  17. The correct order of acidic stength is :

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

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

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

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