Question

Q1. Why magnesium ribbon be cleaned with sandpaper before burning ? (1u​

Answer 1

Answer:

magnesium ribbon can be cleaned by sand paper before burning it can covered with the layer of of magnesium oxide so it cleaned by sandpaper before burning

Answer 2

Explanation:

Magnesium ribbon should be cleaned with sandpaper before burning in the air... 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...

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