Question

Why should
paper ?
a magnesium ribbon be cleaned before it burnt in air​

Answer 1

Answer:

Magnesium ribbon should be cleaned with sandpaper before burning in the air It should be cleaned before burning due to the following reasons: Magnesium very reactive element which rapidly reacts with oxygen in the air to form a white layer of magnesium oxide and this layer will not burn.

Answer 2

Magnesium ribbon must be cleaned before burning in air so that the the layer of magnesium oxide (which is formed due to reaction of magnesium with air) can be removed in order to get the desired chemical reaction.

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