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प्रश्न
Taking hydrogen peroxide, how would you prepare oxygen in the laboratory ?
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उत्तर
Take manganese dioxide in a round bottom flask and add hydrogen peroxide drop by drop to it, which acts ; a catalyst as shown in the figure. Collect oxygen by downward displacement of water.
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संबंधित प्रश्न
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(a) Starting from hydrogen peroxide how is oxygen gas prepared in laboratory?
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(d) Why is the above method preferred to any other method?
