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Karnataka Board PUCPUC Science Class 11

Identify the correct statements with reference to the given reaction. PX4+3OHX−+3HX2O⟶PHX3+3HX2POX2− (i) Phosphorus is undergoing reduction only. (ii) Phosphorus is undergoing oxidati - Chemistry

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Question

Identify the correct statements with reference to the given reaction.

\[\ce{P4 + 3OH- + 3H2O -> PH3 + 3H2PO^{-}2}\]

(i) Phosphorus is undergoing reduction only.

(ii) Phosphorus is undergoing oxidation only.

(iii) Phosphorus is undergoing oxidation as well as reduction.

(iv) Hydrogen is undergoing neither oxidation nor reduction.

Short/Brief Note
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Solution

(iii) Phosphorus is undergoing oxidation as well as reduction.

(iv) Hydrogen is undergoing neither oxidation nor reduction.

Explanation:

The given reaction is as below-

\[\ce{P4 + 3OH- + 3H2O -> PH3 + 3H2PO^{-}2}\]

The above reaction is a kind of disproportionate reaction in which phosphorous is being reduced as well as oxidized whereas hydrogen remains same in +1 oxidation state. 

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Oxidation Number - Types of Redox Reactions
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Chapter 8: Redox Reactions - Multiple Choice Questions (Type - I) [Page 107]

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NCERT Exemplar Chemistry [English] Class 11
Chapter 8 Redox Reactions
Multiple Choice Questions (Type - I) | Q 15 | Page 107

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