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Answer the following. How is dioxygen prepared in laboratory from KClO3? - Chemistry

Short Note

Answer the following.

How is dioxygen prepared in the laboratory from KClO3?

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Solution

Dioxygen is prepared by heating potassium chlorate (KClO3) in presence of the catalyst, MnO2.

\[\ce{\underset{\text{Potassium chlorate}}{2KClO_{3(s)}} ->[Heat][MnO2] 2KCl_{(s)} + \underset{\text{Dioxygen}}{3O_{2(g)}}}\]

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Balbharati Chemistry 12th Standard HSC Maharashtra State Board
Chapter 7 Elements of Groups 16, 17 and 18
Exercise | Q 3.03 | Page 164
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