What is Redox reaction give some examples ? What is Daniel cell?how it works
Answers
Explanation:
Answer: Redox reaction is a reaction in which oxidation and reduction takes place simultaneously.
Oxidation is a reaction in which electrons are lost and thus there is an increase in the oxidation number.
Reduction is a reaction in which electrons are gained and thus there is a decease in the oxidation number.
Zn+Cu^{2+}\rightarrow Zn^{2+}+CuZn+Cu
2+
→Zn
2+
+Cu
In the above reaction, Zinc undergoes oxidation as it loses electrons and get converted to Zn^{2+}Zn
2+
and Cu^{2+}Cu
2+
undergoes reduction as it gains electrons and get converted to CuCu with oxidation number zero.
Thus this is an example of redox reaction.
Daniel cell:
The principle behind the Daniell cell is redox reaction. In the process of the reaction, electrons can be transferred from the corroding zinc to the copper through an electrically conducting path as a useful electric current.