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The pair in which phosphours atoms have ...

The pair in which phosphours atoms have a formed oxidation state of `+3` is

A

orthophosphorous acid and pyrophosphorous acids

B

pyrophosphorous acid and hypophosphoric acids

C

orthophosphorous and hyphophosphoric acids

D

pyrophosphorus and pyrophosphoric acids

Text Solution

Verified by Experts

The correct Answer is:
A
The O. S of P is given in the bracket. Orthophoshorus acid, `H_(3)PO_(3)(+3)`,
Pyrophosphorus acid, `H_(4)P_(2)O_(5)(+3)`,
Hypophosphoric aicd, `H_(4)P_(2)O_(6)+(4)` and
Pyrophosphoric acid, `H_(4)P_(2)O_(7)(+5)`.
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PRADEEP-P-BLOCK ELEMENTS (NITROGEN FAMILY)-Competition focus jee(main and advanced)/ medical entrance special) (I. Multiple Choice Questions (with one correct answer)
  1. Maximum number of covalent bonds formed by N and P are

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  2. The percentage of p-character in the orbitals forming p-p bonds in P4 ...

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  3. Which one of the following forms vortex ring

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  4. The reaction of white phosphorus with aqueous NaOH gives phosphine alo...

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  5. The reaction of P(4) with X leads selectively to P(4)O(6) The X is :

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  6. P(4)O(10) is the anhydride of

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  7. How many bridging atoms are present in P(4)O(10) ?

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  8. Of the following compounds, the most acidic is

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  9. Oxidation state of phosphorus in cyclotrimetaphosphoric acid is

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

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  11. The oxoacid of phosphorus that reduces silver nitrate into metallic si...

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

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

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

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

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

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

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  18. What will be the resultant products formed when the phosphorus hailde ...

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

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  20. Reaction of PCl3 and PhMgBr would give

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