Question

why magnesium ribbon cleaned before burning

Answer 1

Hey"

Here is your answer friend.

》Magnesium ribbon cleaned before burning because it contain magnesium oxide that is stop burning that's why before burning we have to clean with sand paper.


Hope it is helpful to you.

Answer 2

♤ When Magnesium ribbon is exposed in the atmosphere it form a layer of magnesium oxide on its surface.

♤ This layer of magnesium oxide is stable compound to prevent further reaction of magnesium with oxygen.

♤ Hence, it should be cleaned before burning in air to remove this layer so that the metal can be exposed to air properly.