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A magnesium ribbon burns with a dazzling...

A magnesium ribbon burns with a dazzling flame in air (oxygen) and changes into a white substance, magnesium oxide. Is magnesium being oxidized or reduced in this reaction?

Text Solution

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The reactions in which oxidation (loss of electrons) and reduction (gain of electrons) take place simultaneously are called redox reactions.
`underset("Magnesium")(2Mg(s)) + underset("Oxygen")(O_2(g)) rarr underset("Magnesium oxide")(2MgO (s))`
Magnesium is getting oxidised because it is losing electrons to form `Mg^(2+)` and oxygen is gaining electrons to form `O^(2-)`, therefore it is getting reduced.
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