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  4. The decomposition of KClO3 to KCl and O2 on heating is an example of

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Q. The decomposition of $KClO_3$ to $KCl$ and $O_2$ on heating is an example of

Redox Reactions

Solution:

$ 2 K \overset{\text{+5 }}{ Cl} \overset{\text{ -2 }}{O_3 } \rightarrow{\Delta} 2K \overset{\text{-1}}{Cl } + 3\overset{\text{ 0}}{ O}_2 $
Here one element of $KClO_3$ is oxidised $(O \rightarrow O_2)$ while the other is reduced $(\overset{\text{ +5}}{Cl } \rightarrow \overset{\text{-1}}{Cl }) $ and hence, it is an example of intramolecular redox reaction.