Question

The decomposition of ${KClO_3}$ to KCl and ${O_2}$ on heating is an example of

• A. intermolecular redox reaction
• B. intramolecular redox reaction
• C. autoredox reaction
• D. none.

Answer 1

Answer: (B)

intramolecular redox reaction

Answer 2

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