Question

✓ Answer all the questions with appropriate reasons.
Q1. Magnesium ribbon is rubbed before burning because it has a coating of
(a) Basic magnesium carbonate (b) Basic magnesium oxide
(c) Basic magnesium sulphide
(d) Basic magnesium chloride​

Answer 1

Answer:

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.

Explanation:

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