Home
Class 12
CHEMISTRY
Redox is a reaction in which both oxidat...

Redox is a reaction in which both oxidation and reduction will take place simultaneously . It is obvious that if one substance gives electron there must be another substance to accept these electrons . In some reactions, same substance is reduced as well as oxidised, these reactions are termed as disproportionation reactions.
For calculating equivalent mass in redox reaction change in oxidtaion number is realted to n-factor which is reciprocal of molar ratio.
This reaction is an example of
`Br_(2) + OH^(-) to BrO_(3)^(-) + H_(2)O + Br^(-)`

A

Oxidation reaction only

B

Reduction reaction only

C

Neutralization reaction

D

Disproportionation reaction

Text Solution

AI Generated Solution

The correct Answer is:
To solve the problem regarding the reaction \( \text{Br}_2 + \text{OH}^- \rightarrow \text{BrO}_3^- + \text{H}_2\text{O} + \text{Br}^- \), we need to analyze the oxidation states of bromine in the reactants and products to determine if this reaction is a disproportionation reaction. ### Step-by-Step Solution: 1. **Identify the Reactants and Products:** - The reactants are \( \text{Br}_2 \) and \( \text{OH}^- \). - The products are \( \text{BrO}_3^- \), \( \text{H}_2\text{O} \), and \( \text{Br}^- \). 2. **Determine the Oxidation States:** - For \( \text{Br}_2 \): In its elemental form, bromine has an oxidation state of 0. - For \( \text{BrO}_3^- \): Let the oxidation state of bromine be \( x \). The oxidation state of oxygen is -2. The equation can be set up as: \[ x + 3(-2) = -1 \quad \Rightarrow \quad x - 6 = -1 \quad \Rightarrow \quad x = +5 \] Thus, the oxidation state of bromine in \( \text{BrO}_3^- \) is +5. - For \( \text{Br}^- \): The oxidation state of bromine is -1. 3. **Analyze Changes in Oxidation States:** - The oxidation state of bromine changes from 0 in \( \text{Br}_2 \) to +5 in \( \text{BrO}_3^- \) (oxidation). - The oxidation state of bromine changes from 0 in \( \text{Br}_2 \) to -1 in \( \text{Br}^- \) (reduction). 4. **Conclusion on Reaction Type:** - Since one species (bromine) is both oxidized (from 0 to +5) and reduced (from 0 to -1), this reaction is classified as a disproportionation reaction. 5. **Final Answer:** - Therefore, the given reaction \( \text{Br}_2 + \text{OH}^- \rightarrow \text{BrO}_3^- + \text{H}_2\text{O} + \text{Br}^- \) is an example of a **disproportionation reaction**.
Promotional Banner

Topper's Solved these Questions

  • REDOX REACTIONS

    AAKASH INSTITUTE ENGLISH|Exercise Assignment (Section E) (Assertion-Reason Type Questions)|8 Videos

  • REDOX REACTIONS

    AAKASH INSTITUTE ENGLISH|Exercise Assignment (Section F) (Matrix-Match Type Questions)|5 Videos

  • REDOX REACTIONS

    AAKASH INSTITUTE ENGLISH|Exercise Assignment (Section C) (Objective type Questions (More than one option is correct))|18 Videos

  • PRINCIPLES OF QUALITATIVE ANALYSIS

    AAKASH INSTITUTE ENGLISH|Exercise Assignment (SECTION H)|9 Videos

  • SOLUTIONS

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGMENT (SECTION-J) AAKASH CHALLENGERS QUESTIONS|10 Videos

Similar Questions

Explore conceptually related problems

Redox is a reaction in which both oxidation and reduction will take place simultaneously . It is obvious that if one substance gives electron there must be another substance to accept these electrons . In some reactions, same substance is reduced as well as oxidised, these reactions are termed as disproportionation reactions. For calculating equivalent mass in redox reaction change in oxidtaion number is realted to n-factor which is reciprocal of molar ratio. Which of the following is an example of redox reaction ?

Redox is a reaction in which both oxidation and reduction will take place simultaneously . It is obvious that if one substance gives electron there must be another substance to accept these electrons . In some reactions, same substance is reduced as well as oxidised, these reactions are termed as disproportionation reactions. For calculating equivalent mass in redox reaction change in oxidtaion number is realted to n-factor which is reciprocal of molar ratio. The equivalent weight of Cu_(2)S in the following reaction is Cu_(2)S + O_(2) to Cu^(+2) + SO_(3)

Redox is a reaction in which both oxidation and reduction will take place simultaneously . It is obvious that if one substance gives electron there must be another substance to accept these electrons . In some reactions, same substance is reduced as well as oxidised, these reactions are termed as disproportionation reactions. For calculating equivalent mass in redox reaction change in oxidtaion number is realted to n-factor which is reciprocal of molar ratio. When P reacts with NaOH, the products are PH_(3) and NaH_(2)PO_(2) which of the following statement is correct ?

Redox is a reaction in which both oxidation and reduction will take place simultaneously . It is obvious that if one substance gives electron there must be another substance to accept these electrons . In some reactions, same substance is reduced as well as oxidised, these reactions are termed as disproportionation reactions. For calculating equivalent mass in redox reaction change in oxidtaion number is realted to n-factor which is reciprocal of molar ratio. For converting one mole of nitrobenzene to aniline how many moles of electrons are transferred ?

Redox is a reaction in which both oxidation and reduction will take place simultaneously . It is obvious that if one substance gives electron there must be another substance to accept these electrons . In some reactions, same substance is reduced as well as oxidised, these reactions are termed as disproportionation reactions. For calculating equivalent mass in redox reaction change in oxidtaion number is realted to n-factor which is reciprocal of molar ratio. How many moles of KMnO_(4) are reacted with one mole of ferrous oxalate in acidic medium ?

A _____ reaction is a reaction in which both oxidation and reduction take place simultaneously.

The reaction in which oxidation and reduction occurs simultaneously is called

In which reaction, there is change in oxidation number of N atom?

Which of the following is the disproportionation redox reaction ?

Which reaction does not represent auto redox or disproportionation ?

Knowledge Check

  • The reaction in which oxidation and reduction occurs simultaneously is called

    A
    electrolysis
    B
    redox
    C
    oxidation
    D
    ionisation