Question

before burning in air the magnsium ribbon is cleaned by rudding with a sand paper to:​

Answer 1

Answer:

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Explanation:

Before burning in air, the magnesium ribbon is cleaned by rubbing with sandpaper. This is done to remove the protective layer of basic magnesium carbonate ( Mg(CO3)2) from the surface of ribbon.

Answer 2

Answer:

to remove the oxygen present in the air and get pop sound on burning