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CBSE Class 10 Answered

How to find redox reaction?
Asked by bhuvaneswari5781 | 18 May, 2020, 11:13: AM
answered-by-expert Expert Answer

A chemical reaction in which loss of electrons and gain of electrons occur simultaneously is called a redox reaction.  

Example: 

   

 

In this reaction, hydrogen acts as a reducing agent and reduces copper oxide to copper. This is a reduction reaction. 

Reduction: Cu+2 + 2e→ Cu 

Simultaneously, copper oxide acts as an oxidising agent and oxidises hydrogen to water. This is an oxidation reaction. 

Oxidation: 2H - 2e− → 2H+

There is one more way a reaction called redox is as follows:

Redox reactions: Redox reactions are those reactions in which both oxidation and reduction occur.

Oxidation - involves the loss of  hydrogen OR gain of oxygen 
Reduction - involves the gain of hydrogen OR loss of oxygen 
 
ZnO + C → Zn +CO
 
In this reaction, zinc oxide is reduced to zinc and Carbon is oxidized to carbon monoxide

Answered by Ramandeep | 18 May, 2020, 11:18: AM
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