Magnesium ribbon is rubbed before burning because it has a coating of
Question
Magnesium ribbon is rubbed before burning because it has a coating of
Solution
Magnesium ribbon is rubbed before burning to remove the layer of magnesium oxide that forms on its surface. This layer of magnesium oxide is quite stable and prevents further reaction of magnesium with oxygen. When the magnesium ribbon is rubbed, this layer is removed, and the underlying magnesium can react with oxygen when heated.
Similar Questions
Why magnesium ribbon is cleaned before burning in air
Assertion: Magnesium ribbon burns with a dazzling flame in air.Reason: A white substance magnesium nitride is formed.
When a magnesium ribbon is burnt in air, what are the two observations that you make?
magnesium ribbon burns with a dazzling flame in air (oxygen)and changes into a white substance, magnesium oxide. Is magnesium being oxidised orreduced in this reaction?
Magnesium ribbon is burnt in an atmosphere of nitrogen gasto form solid magnesium nitride.
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