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Oxyacid of phosphorus that can reduce Ag...

Oxyacid of phosphorus that can reduce `AgNO_3` to silver is

A

`H_(3)PO_(2)`

B

`H_(4)P_(2)O_(6)`

C

`H_(3)PO_(4)`

D

`H_(4)P_(2)O_(7)`

Text Solution

Verified by Experts

The correct Answer is:
A
Due to the presence one P-H bond in `H_(3)PO_(2)`, it acts as a reducing agent and hence reduces `AgNO_(3)` to metallic Ag.
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PRADEEP-P-BLOCK ELEMENTS -MCQ
  1. The oxidation state of phosphorus in cyclometaphosphoric acid is :

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  2. The correct formula of salt formed by the neutraliation of hypophosph...

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  3. Oxyacid of phosphorus that can reduce AgNO3 to silver is

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  4. The pair in which phosphours atoms have a formed oxidation state of +3...

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  5. Which is the correct statement for the given acids ?

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  6. Which of the following is a cyclic oxo acid ?

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  7. Sulphuryl chloride (SO(2)Cl(2)) reacts with white phosphorus (P(4)) to...

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  8. Cl-P-Cl bond angles in PCl5 molecule are

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  9. The compound which has molecular nature in gas phase but ionic in soli...

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  10. Excess of PCl(5) reacts with concentrated H(2)SO(4) giving :

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  11. Reaction of PCl3 and PhMgBr would give

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  12. Acidity of diprotic acids in aqueous solutions increases in the order

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  13. Which of the following is the wrong statement ?

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  14. Which one of the following group 16 elements does not exist in -2 oxid...

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  15. Identify the incorrect statement from the following

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  16. Roasting of sulphides gives the gas X as a by product. This is a colou...

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  17. Nitrogen dioxide and sulphur dioxide have some properties in common, w...

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  18. Which one of the following statements is correct when SO(2) is passed ...

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  19. Name the gas that can readily decolourise acidified KMnO(4) solution:

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  20. In which pair of ions both the species contain S -S bond?

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