Pure Oxygen Can Be Produced by the Catalyzed Decomposition of Potassium

question 4

Multiple Choice

Pure oxygen can be produced by the catalyzed decomposition of potassium chlorate.Choose the correct balanced chemical equation for this reaction.

• A) KClO₃(s)→ KClO(s)+ O₂(g)
• B) 2 KClO₃(s)→ 2 K(s)+ Cl₂(g)+ 3 O₂(g)
• C) 2 KClO₃(s)→ 2 KCl(s)+ 3 O₂(g)
• D) 2 KClO₃(s)→ 2 KClO₂(s)+ O₂(g)
• E) KClO₃(s)→ K(s)+ ClO(g)+ O₂(g)

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