give reason
magnesium ribbon is cleaned before burning ?
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Magnesium ribbon is cleaned before burning because when magnesium ribbon is kept open in the atmosphere air is specially oxygen reacts with magnesium and form magnesium oxide which creates problem in burning the magnesium ribbon therefore it is cleaned by sand paper to remove the layer of magnesium oxide.
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Answer:
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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