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प्रश्न
In the laboratory preparation of oxygen from hydrogen peroxide answer the following:
State the method of collection of the oxygen gas giving reasons.
टीपा लिहा
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उत्तर
The method of collecting oxygen gas is by downward displacement of water.
The reasons are:
(1) Oxygen is very slightly soluble in water
(2) Oxygen is almost as heavy as air.
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