Question

Laboratory preparation of oxygen​

Answer 1

Explanation:

Oxygen can be prepared in a number of ways in the laboratory.

Oxygen is an element that belongs to the sixth group on the periodic table.

It can be prepared by:

• Heating easily decomposable oxygen compounds such as KClO₃.

The catalyst often used here is MnO₂:

    2KClO₃  → 2KCl   + 3O₂

• Addition of hydrogen peroxide solution to manganese (IV) oxide which is a catalyst without heating:

      2H₂O₂     →    2H₂O + O₂    

Oxygen can also be produce by fractional distillation of air. Also electrolysis of water produces oxygen. These methods commercially produces oxygen.

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Oxygen for combustion brainly.com/question/3192341

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