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CAUTION: This activity needs the teacher...

CAUTION: This activity needs the teacher's assistance. It would be better if students wear suitable eyeglasses.
• Clean a magnesium ribbon, about 3-4 cm Tong by rubbing it with sand paper.
Hold it with a pair of tongs. Burn it using a spirit lamp or a burner and collect the ash so formed in a watch glass as shown in Fig. Burn the magnesium ribbon keeping it away as far as possible from your eyes.

What do you observe ?

Text Solution

Verified by Experts

We observe that magnesium ribbon burns with a dazzling white flame and changes into a white powder. This powder is magnesium oxide. It is formed due to the reaction between magnesium and oxygen present in the air.
`2Mg + O_2 to 2MgO`
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