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Strong reducing behaviour of H(3)PO(2) i...

Strong reducing behaviour of `H_(3)PO_(2)` is due to

A

High oxidation state of phosphorus

B

Presence of two `-OH` groups and one `P-H` bond

C

Presence of one `-OH` group and `P-H` bonds

D

High electron gain enthalpy of phosphorus

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The correct Answer is:
C
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Strong reducing behaviour of H_(3)PO_(4) is due to :

How do you account for reducing behaviour of H_(3)PO_(2) on the basis of its structure?

Good reducing nature of H_(3)PO_(2) is attributed to the presence of :

(a) Why does PCl_3 fume in moisture ? (b) Are all the five bonds in PCl_5 molecule equivalent ? Justify your answer. ( c) How do you account for the reducing behaviour of H_3 PO_2 on the basic of its structure ? (d) Give the disproportional reaction of H_3PO_3 .

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) .

NARAYNA-15TH GROUP ELEMENTS-EXERCISE - 3 (PREVIOUS QUESTIONS)
  1. Thermal decomposition of zinc nitrate give:

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  2. The total number of sigma and pi-bonds in pyrophosphoric acid are resp...

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  3. Chloroethane reacts with Y to form NaCl and Z. One mole of Z reacts wi...

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  4. Three reactions involving H(2)PO(4)^(-) are given below I. H(3)PO(4...

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  5. Which one of the oxides of nitrogen dimerises into colourless solid/li...

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  6. Which one of the acids is a dibasic acid ?

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  7. Among the trihalides of nitrogen, which is the least basic ?

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  8. Which one of the following pairs is obtained on heating ammonium dichr...

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  9. The hybridization of atomic orbitals of nitrogen is NO(2)^(+), NO(3)^(...

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  10. A metal X on heating in nitrogen gas gives Y,Y on treatment with H(2)O...

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  11. Very pure nitrogen can be obtained by :

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

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  13. The molecule having smallest bond angle is

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  14. Which of the following oxides of nitrogen is the anhydride of nitrous ...

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  15. The hydrolsis of NCl(3) by water produces

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

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  17. In which of the following compounds, nitrogen exhibits highest oxidati...

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  18. Which of the following statement is not valid for oxoaids of phosphoru...

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  19. Strong reducing behaviour of H(3)PO(2) is due to

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

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