why should a magnesium ribbon be cleaned before burning in air
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Answer:
Magnesium ribbon should be cleaned before burning in air.
Explanation: it is formed due to the slow reaction of moist air on it. These hinders the burning of magnesium.So, this layer is removed by rubbing with sand paper before burning.
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1
Answer:
To remove magnesium oxide layer from the ribbon which may prevent the burning of magnesium ribbon.Unwanted impurities deposited on the magnesium ribbon can be removed and only pure magnesium can be used for the reaction.
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