Question

why we rub magnesium ribbon in sand paper​

Answer 1

Answer:

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 reactio

Answer 2

Answer:

We rub magnesium ribbon in sand paper because it helps to remove the magnesium oxide layer from the ribbon which helps in slow down in burning of Megnisium ribbon.