Question

Why should magnesiun ribbon be cleaned before during burning in the sir

Answer 1

We should always clean Mg ribbon before burning it in air to remove the MgO layer on it, which is already present on it before burning it.

Answer 2

It is because magnesium ribbon reacts with oxygen in air to form a protective and inert layer of magnesium oxide in its surface. This layer is unreactive and prevents the ribbion from burning so we need to clean it before burning.


hope it will help u