Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • NCERT
  • While sulphur dioxide and hydrogen peroxide can act as oxidising as well asreducing agents in their reactions,

8.8 While sulphur dioxide and hydrogen peroxide can act as oxidising as well as reducing agents in their reactions, ozone and nitric acid act only as oxidants. Why? 

Answers (1)

best_answer

Answer-

  • sulphur dioxide (SO_{2}) here oxidation state of sulphur is +4  and the range of oxidation number of S is from -2 to +6. It means it can accept an electron and lose as well, therefore, it can behave as oxidant and reductant both. 
  • In case of hydrogen peroxide (H_{2}O_{2}) oxidation state is -1 and the oxidation state of O can vary from 0 to -2. So it shows both oxidizing and reducing properties.
  • For HNO_{3} , Nitrogen has +5 oxidation state and it varies from +5 to -3. So it only accepts electrons. The oxidation state of N only decreases. Hence it acts as only oxidants.
  • And in case of O_{3} , the oxidation state of O is zero(0) and the range of oxidation number of O is 0 to -2. It only decreases in this case also so therefore it acts as only oxidants.

 

Posted by

Gautam harsolia

View full answer

Crack CUET with india's "Best Teachers"

  • HD Video Lectures
  • Unlimited Mock Tests
  • Faculty Support
cuet_ads

Similar Questions

Trending Articles/News

anam-khan

PM Modi's Pariksha Pe Charcha 2025 to be held next month, registrations open till January 14
anam-khan

CBSE Board Exams 2025: Online portal for availing exemptions by CWSN students opens
anam-khan

Board Exams: States agree to equivalence; no question paper ‘jumbling’ from next year, says PARAKH CEO

Latest Question