Premium Online Home Tutors
3 Tutor System
Starting just at 265/hour
Answer :
Magnesium ribbon should be cleaned before burning in air because Magnesium metal reacts with oxygen present in the atmosphere and forms a very stable compound i.e, Magnesium Oxide(MgO). In order to prevent further reactions with Oxygen, it is therefore required to clean the ribbon to remove the layer of MgO.