(a) H2O2 + O3 \rightarrow H2O + 2O2

(b) H2O2 + Ag2O \rightarrow 2Ag + H2O + O2

Role of hydrogen peroxide in the above reactions is respectively:

  • Option 1)

    oxidizing in (a) and reducing in (b)

  • Option 2)

    reducing in (a) and oxidizing in (b)

  • Option 3)

    reducing in (a) and (b)

  • Option 4)

    oxidizing in (a) and (b)

 

Answers (1)

As we learnt in

Rules for Oxidation Number -

The oxidation number of oxygen in most compounds is -2. There are two exceptions.
In peroxide (H2O2; Na2O2),  the oxidation number is -1.

- wherein

In superoxide e.g. KO2 its oxidation number is -1/2.

 

H2O2 acts as reducing agent in all those reactions in which O2 is evolved. 

Correct option is 3.

 

 


Option 1)

oxidizing in (a) and reducing in (b)

Incorrect

Option 2)

reducing in (a) and oxidizing in (b)

Incorrect

Option 3)

reducing in (a) and (b)

Correct

Option 4)

oxidizing in (a) and (b)

Incorrect

Most Viewed Questions

Preparation Products

Knockout NEET 2024

Personalized AI Tutor and Adaptive Time Table, Self Study Material, Unlimited Mock Tests and Personalized Analysis Reports, 24x7 Doubt Chat Support,.

₹ 40000/-
Buy Now
Knockout NEET 2025

Personalized AI Tutor and Adaptive Time Table, Self Study Material, Unlimited Mock Tests and Personalized Analysis Reports, 24x7 Doubt Chat Support,.

₹ 45000/-
Buy Now
Knockout NEET 2021 (One Month)

Personalized AI Tutor and Adaptive Time Table, Self Study Material, Weekend Live Classes, Unlimited Mock Tests and Personalized Analysis Reports, 24x7 Doubt Chat Support,.

₹ 14000/- ₹ 4999/-
Buy Now
Knockout NEET 2021

Personalized AI Tutor and Adaptive Time Table, Self Study Material, Weekend Live Classes, Unlimited Mock Tests and Personalized Analysis Reports, 24x7 Doubt Chat Support,.

₹ 22999/- ₹ 9999/-
Buy Now
Test Series NEET 2021

Chapter/Subject/Full Mock Tests for NEET, Personalized Performance Report, Weakness Sheet, Complete Answer Key,.

₹ 6999/- ₹ 2999/-
Buy Now
Boost your Preparation for NEET 2021 with Personlized Coaching
 
Exams
Articles
Questions