Question

MCQ
Before burning in air, the magnesium
ribbon is cleaned by rubbing with
a sand paper to:
(a)Make the ribbon surface Shinier
(b)Remove the layer of magnesium onide
prom the ribbon surface
(c)Remove to the layer of magnesium
carbonate fron the ribbon Surface
(d)Remove the moisture from the ribbon
Surface​

Answer 1

Answer:

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

Answer 2

Answer:

remove to the layer of magnesium carbonate fron the ribbon surface