Because magnesium is a very reactive metal so when it is kept openly inthe air it can react with the gases. So to remove the impurities it is cleaned before burning.
Magnesium ribbon should be cleaned before burning it in air to remove the oxide layer from it which may prevent or slow down the burning of magnesium ribbon.
Answers & Comments
Answer:
Because magnesium is a very reactive metal so when it is kept openly inthe air it can react with the gases. So to remove the impurities it is cleaned before burning.
Explanation:
Magnesium ribbon should be cleaned before burning it in air to remove the oxide layer from it which may prevent or slow down the burning of magnesium ribbon.
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