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Why magnesim rub before burning

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Why magnesim rub before burning

Posted by Vinay Thakur 5 years, 11 months ago

CBSE > Class 10 > Science

3 answers

Aaditya Singh 5 years, 11 months ago

The answer is Magnesium due to exposure with air( oxygen) forms a protective layer of Magnesium oxide on it's surface which prevents it from burning.It is to remove this layer of magnesium oxide that it is rubbed with sand paper.

0Thank You

Aaditya Singh 5 years, 11 months ago

Hi Sis!

0Thank You

Ch Tony 5 years, 11 months ago

Magnesium is clenaed by sand paper or series paper because magnesium is covered with atmosphere oxygen(because Oxidation). This atmospheric oxygen prevents magnesium from burning.

3Thank You

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CBSE > Class 10 > Science