mention the redox reaction we can observed in our daily life
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Answer:
few examples of redox reactions in everyday life are discussed in terms of photosynthesis, decay, respiration, biological processes, corrosion/rusting, combustion and batteries. produced as fuel for its metabolic process.
What are Redox Reactions?
A redox reaction can be defined as a chemical reaction in which electrons are transferred between two reactants participating in it. This transfer of electrons can be identified by observing the changes in the oxidation states of the reacting species.
Example 1: Reaction Between Hydrogen and Fluorine
In the reaction between hydrogen and fluorine, the hydrogen is oxidized whereas the fluorine is reduced. The reaction can be written as follows.
H2 + F2 → 2HF
The oxidation half-reaction is: H2 → 2H+ + 2e–
The reduction half-reaction is: F2 + 2e– → 2F–
The hydrogen and fluorine ions go on to combine in order to form hydrogen fluoride.
Example 2: Reaction Between Zinc and Copper
This is a type of metal displacement reaction in which copper metal is obtained when zinc displaces the Cu2+ion in the copper sulfate solution as shown in the reaction below.
Zn (s) + CuSO4 (aq) → ZnSO4 (aq) + Cu (s)
The oxidation half-reaction can be written as: Zn → Zn2+ + 2e–
The reduction half-reaction can be written as: Cu2+ + 2e– → Cu
Redox reaction image 2
Thus, copper is displaced from the copper sulfate solution by zinc in a redox reaction.
Example 3: Reaction between Iron and Hydrogen Peroxide
Fe2+ is oxidized to Fe3+ by hydrogen peroxide when an acid is present. This reaction is provided below.
2Fe2+ + H2O2 + 2H+ → 2Fe3+ + 2H2O
Oxidation half-reaction: Fe2+ → Fe3+ + e–
Reduction half-reaction: H2O2 + 2e– → 2 OH–
Thus, the hydroxide ion formed from the reduction of hydrogen peroxide combines with the proton donated by the acidic medium to form water