MCQ
Identify redox reaction among the following:
- AAcid$-$base neutralization.
- BPrecipitation reaction.
- ✓Metal displacement reaction.
- DAll the above.
✓
Answer
Correct option: C.
Metal displacement reaction.
Metal displacement reactions are redox reactions in which both oxidation and reduction takes place.Example; $Mg + \mathrm{ZnSO}_4 \rightarrow \mathrm{MgSO}_4+\mathrm{Zn}$
Here $Mg$ is undergoing oxidation with an increase in oxidation number from $0$ to $+2$ and $Zn$ is undergoing reduction with a decrease in oxidation number.
Here $Mg$ is undergoing oxidation with an increase in oxidation number from $0$ to $+2$ and $Zn$ is undergoing reduction with a decrease in oxidation number.
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