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Question

Why is manganese dioxide used as a catalyst in the laboratory for preparation of oxygen?


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Solution

  • The manganese dioxide is used as a catalyst in the laboratory for preparation of oxygen. That means it speeds up the decomposition reaction of H2O2H2+O2.
  • Also, being a catalyst, manganese dioxide is not consumed or chemically altered during the reaction.
  • Manganese dioxide functions as a catalyst in the laboratory preparation of oxygen from potassium chlorate, increasing the rate of oxygen generation without being consumed.

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