Question

Before burning in air, the magnesium ribbon is cleaned by rubbing with a sand paper to: *

1 point

a. Make the ribbon surface shinier

b. Remove the layer of magnesium oxide from the ribbon surface

c. Remove the layer of magnesium carbonate from the ribbon surface

d. Remove the moisture from the ribbon surface

​

Answer 1

Remove the layer of magnesium oxide from the ribbon surface

Answer 2

Answer:

c. Remove the layer of magnesium carbonate from the ribbon surface.

Explanation:

As on burning, it will give u pure Mg ash which is white in colour.

Hope it helps.