Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • Engineering
  • The compound that cannot act both as oxidising and reducing agent is :Option: 1 <img alt="H_{2}SO_{3}" src="https://learn.careers360.com/latex-image/

The compound that cannot act both as oxidising and reducing agent is :

Option: 1

H_{2}SO_{3}


Option: 2

H_{3}PO_{4}


Option: 3

HNO_{2}


Option: 4

H_{2}O_{2}


Answers (1)

best_answer

As we have learnt,

 

Oxoacids of Phosphorus -

Phosphorus forms a number of oxoacids. The important oxoacids of phosphorus with their formulas, methods of preparation and the presence of some characteristic bonds in their structures are given in Table given below.

The compositions of the oxoacids are interrelated in terms of loss or gain of H2O molecule or O-atom. The structures of some important oxoacids are given in later pictures. In oxoacids phosphorus is tetrahedrally surrounded by other atoms. All these acids contain at least one P=O bond and one P–OH bond. The oxoacids in which phosphorus has lower oxidation state (less than +5) contain, in addition to P=O and P–OH bonds, either P–P (e.g., in H4P2O6) or P–H (e.g., in H3PO2) bonds but not both. These acids in +3 oxidation state of phosphorus tend to disproportionate to higher and lower oxidation states. For example, orthophophorous acid (or phosphorous acid) on heating disproportionates to give orthophosphoric acid (or phosphoric acid) and phosphine.

4 \mathrm{H}_{3} \mathrm{PO}_{3} \rightarrow 3 \mathrm{H}_{3} \mathrm{PO}_{4}+\mathrm{PH}_{3}

    

  

-

 

As in H3PO4 Phosphorous is present it's maximum oxidation number state hence it cannot act as a reducing agent.

Hence, the option number (2) is correct.

 

Posted by

Rakesh

View full answer

JEE Main high-scoring chapters and topics

Study 40% syllabus and score up to 100% marks in JEE

Similar Questions

Trending Articles/News

anam-khan

Goa Engineering Admission 2025: 1,415 eligible for BE seats; merit list on June 27
anam-khan

CSAB NEUT counselling 2025 registration begins today for BTech admissions in NE states, UTs
anam-khan

BSEB Super 50 coaching application reopens tomorrow for JEE, NEET aspirants

Latest Question