Question

Things (apparatus) name required for oxygen preparation in laboratory​

Answer 1

Answer:

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Explanation:

• Oxygen gas can be prepared in the laboratory by hydrogen peroxide and manganese dioxide. In this reaction manganese dioxide is used as catalyst. Hydrogen peroxide is poured in manganese dioxide and water having a conical flask with the help of a thistle funnel.

• To make oxygen in the laboratory, hydrogen peroxide is poured into a conical flask containing some manganese(IV) oxide. The gas produced is collected in an upside-down gas jar filled with water. As the oxygen collects in the top of the gas jar, it pushes the water out.

Answer 2

Explanation:

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