Question

Magnesium ribbon is rubbed before burning because it has coating of basic ?​

Answer 1

Answer:

magnesium oxide

Explanation: Magnesium is a highly reactive metal. When exposed to air it forms a layer of magnesium oxide on its surface, which prevents further reaction of magnesium with oxygen. Magnesium ribbon is rubbed before burning because it has a coating of basic magnesium oxide

Answer 2

Answer:

Magnesium Oxide