WHY IS MAGNESIUM RIBBON RUBBED WITH SAND PAPER
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1
Answer:
Like rusting in case of iron, with magnesium, the oxide layer forms a white coating on the outside of the metal that will slow down or interfere with the burning process. Rubbing with sand paper helps to remove this oxide layer due to which burning speeds up.
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Answered by
4
Answer:
Because, it hinders burning of magnesium.
Explanation:
The magnesium ribbon which usually we use has a white layer of magnesium oxide on its surface. It is formed by slow reaction of moist air on it. This hinders the burning of magnesium. So, this layer is removed by rubbing with sandpaper before burning.
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