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Why should magnesium ribbon be cleaned …

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Why should magnesium ribbon be cleaned before burning in air ?

Posted by Anjali Gupta 5 years, 4 months ago

CBSE > Class 10 > Science

4 answers

Shivam Vishwakarma 5 years, 4 months ago

Because magnesium ribbon has a layer of magnesium carbonate

Bhoomi Sharma 5 years, 4 months ago

It should be cleaned to remove the oxide layer formed on it's surface

Yogita Ingle 5 years, 4 months ago

Magnesium ribbon should be cleaned with sandpaper before burning in the air because of 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.
To remove the Magnesium oxide layer from the ribbon which may prevent or slow down the burning of
magnesium ribbon.
Unwanted impurities deposited on the magnesium ribbon can be removed and only pure magnesium can be used for the reaction.

Pushti Bhardwaj 5 years, 4 months ago

It should be cleaned before burning so that the magnesium oxide formed is free of dust

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