Question

a catalyst used in a laboratory preparation of oxygen from hydrogen peroxide​

Answer 1

Hydrogen Peroxide is used in laboratory for preparation of oxygen in a catalyst

Answer 2

Answer:

oxygen gas can be prepared I think laboratory hydrogen peroxide and manganese dioxide.in this reaction manganese dioxide I used as catalyst.the appartus is set up as shown in the figure.hydrogen peroxide I poured in manganese dioxide and water having a conical flask with the help of a thistle funnels.

The figure is in textbook I thik✌

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