Question

Question:

Why should a magnesium irbbon be cleaned before burning in air?​

Answer 1

$\huge \huge \bf { \pmb{ \blue{Answer}}}$

Magnesium ribbon should be cleaned with sandpaper before burning in air in order to remove white layer of magnesium oxide (MgO) from its surface which hinders the burning of magnesium.

Answer 2

$\huge \huge \bf { \pmb{ \red{Answer}}}$

Magnesium ribbon should be cleaned with sandpaper before burning in air in order to remove white layer of magnesium oxide (MgO) from its surface.