Question

$\huge\boxed{\underline{\mathcal{\red{Q} \green{UE} \pink{S} \orange{TI} \blue{O} \pink{N}}}}$
☺✌◦•●◉✿Explain about the surface of Magnisium ribbon..... n why it is rubbed against sand paper.... before burning in air.......

Aur..... Isss... app ne baja ke rakhi hai melli.... :-(​ ✿◉●•◦✌☺​✔
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Answer 1

ita oxide forms a white coating in the surface of metals and slow down the burning process. rubbing with sand paper helps to remove the white coating and speeds up the burning process.

dats all i hope u got it..

Answer 2

Answer:

Magnesium is a very reactive metal when stored it reacts with oxygen to form a layer of magnesium oxide on its surface this layer of magnesium oxide is quite stable and prevents further reaction of magnesium with oxygen the magnesium ribbon is cleaned by sand paper for removing this layer so that the underlying metal

I hope you like it

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