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Hydrogen Displacement by Alkalis

magnesium bur...

Question

magnesium burns in oxygen to form magnesium oxide. Explain this reaction on the basis of electronic concept of oxidation and reduction?

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Solution

Magnesium is oxidized to Mg²⁺
2Mg â†’ 2Mg²⁺ + 4e-
Oxygen is reduced to O^2-
O₂ + 4e- â†’ 2O^2-
Overall equation:
2Mg + O2â†’ 2MgO.

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Hydrogen Displacement by Alkalis

Standard VIII Chemistry

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