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why should a magnesium ribbon clean before burning |
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Answer» To remove the coating of magnesium oxide Magnesium ribbon should be cleaned before burning in air because It reacts with atmospheric oxygen and forms magnesium oxide (MgO)layer which is very stable compound In order to prevent further reactions with oxygen, it is therefore necessary to clean the ribbon day to remove the layer MgO. To remove the oxidation layer Because magnesium is a very reactive element, it react with oxygen vigoursly and form a layer of magnesium oxide which is unable to burn, So we need to clean magnesium ribbon before burning Magnesium reacts with oxygen in the atmosphere and forms Magnesium Oxide. To prevent this it is cleaned with sand paper before reaction. |
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