Why is hydrogen peroxide preferred in the preparation of oxygen gas?
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Solution
Part 1: Preparation of oxygen:
In the laboratory, oxygen is prepared from the Hydrogen peroxide which is added drop by drop from a funnel to Manganese dioxide.
Manganese dioxide is used as a catalyst in this reaction.
Part 2: Hydrogen peroxide is preferred in the preparation of oxygen gas:
Although we have many methods to prepare oxygen, this method is preferred as it required no heat and it is a simple process to obtain oxygen gas in the laboratory.
The rate of evolution of oxygen is moderate and under control.